Unichem Laboratories Limited

India

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2025 May 1
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2025 February 2
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IPC Class
A61K 38/17 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans 14
A61P 35/00 - Antineoplastic agents 12
A61K 38/16 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof 11
A61K 9/20 - Pills, lozenges or tablets 10
C07K 14/37 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from fungi 7
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Status
Pending 27
Registered / In Force 75
Found results for  patents
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1.

PROTEIN FOR TREATMENT OF INFLAMMATORY DISEASES

      
Application Number 18828436
Status Pending
Filing Date 2024-09-09
First Publication Date 2025-05-15
Owner Unichem Laboratories Ltd (India)
Inventor Sathe, Dhananjay

Abstract

The present invention relates to a lectin for use in the treatment, reduction in progression and curing of inflammation in a subject in need thereof. Pharmaceutical compositions comprising said lectin are also described. The lectin may comprise an amino acid sequence having sequence of SEQ ID NO: 1 or at least 60% homology to SEQ ID NO: 2.

IPC Classes  ?

  • A61K 38/17 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans
  • A61P 19/02 - Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis

2.

AN IMPROVED PROCESS FOR MANUFACTURING OF VALPROIC ACID AND/OR ITS SALT

      
Application Number IB2024059534
Publication Number 2025/074220
Status In Force
Filing Date 2024-09-30
Publication Date 2025-04-10
Owner UNICHEM LABORATORIES LTD. (India)
Inventor
  • Sathe, Dhananjay G.
  • Gawas, Dnyaneshwar V.
  • Metkar, Shashikant

Abstract

The present invention provides an improved process for manufacturing of Valproic acid, intermediates, and sodium salt of valproic acid (Divalproex sodium). The present invention provides sequential additions of reactants and/or catalyst or reagents and/or solvent(s) which is most effective to achieve maximum conversion efficiency, less or no impurity formation, which overall results in increased yield as well as purity not less than 99%. Furthermore, it involves use of green solvents (recover and/or recycle easily); mild & cheaper catalyst or reagent; reduced reaction time and steps to be performed. In the present invention, synthesis of valproic acid is carried out without isolating any intermediate compound; and divalproex sodium is synthesised by heating valproic acid without use of solvent at about 60°C to about 110°C. The obtained compound of formula (Divalproex sodium) is substantially free of impurities.

IPC Classes  ?

  • C07C 53/128 - Acids containing more than four carbon atoms the carboxyl group being bound to a carbon atom bound to at least two other carbon atoms, e.g. neo-acids
  • C07C 51/41 - Preparation of salts of carboxylic acids by conversion of the acids or their salts into salts with the same carboxylic acid part
  • C07C 51/08 - Preparation of carboxylic acids or their salts, halides, or anhydrides from nitriles
  • C07C 253/30 - Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups
  • C07C 255/19 - Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and carboxyl groups, other than cyano groups, bound to the same saturated acyclic carbon skeleton

3.

PROTEIN COMPOSITIONS FOR THE TREATMENT OF INFLAMMATORY DISEASES

      
Application Number 18684064
Status Pending
Filing Date 2022-08-27
First Publication Date 2025-02-27
Owner Unichem Laboratories Limited (India)
Inventor
  • Sathe, Dhananjay
  • Mishra, Vivek
  • Jog, Sunil
  • Bakshi, Gautam

Abstract

The present invention relates to the pharmaceutical compositions of lectin proteins and its use for the prevention, treatment and cure of inflammation, including inflammatory disease. The invention specifically relates to the pharmaceutical compositions for topical application comprising lectin proteins and its use for prevention, treatment and cure of inflammation due to chemotherapy and/or radiotherapy. The lectin may comprise an amino acid sequence having sequence of SEQ ID NO: 1 or at least 70% homology to SEQ ID NO: 1.

IPC Classes  ?

  • A61K 38/16 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof
  • A61K 9/00 - Medicinal preparations characterised by special physical form
  • C07K 14/37 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from fungi

4.

RECOMBINANT PROTEIN FOR SARS-COV2 DISEASE

      
Application Number 18718862
Status Pending
Filing Date 2022-12-14
First Publication Date 2025-02-06
Owner Unichem Laboratories Limited (India)
Inventor
  • Sathe, Dhananjay
  • Iyappan, Saravanakumar

Abstract

The present invention relates to the protein for treatment of infectious disease caused by Coronaviridae. In particular, the invention relates to a recombinant Sclerotium rolfsii lectin for use in the treatment, reduction in progression and curing of SARS-COV2 disease in a subject in need thereof. Pharmaceutical compositions comprising said recombinant Sclerotium rolfsii lectin are also described. The recombinant Sclerotium rolfsii lectin protein may comprise an amino acid sequence having at least 70% homology to SEQ ID NO: 1.

IPC Classes  ?

  • A61K 38/16 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof
  • A61P 31/14 - Antivirals for RNA viruses

5.

LECTIN PROTEIN FOR TREATMENT AND PREVENTION OF NEURODEGENERATIVE DISEASES

      
Application Number 18260404
Status Pending
Filing Date 2022-01-05
First Publication Date 2024-12-05
Owner Unichem Laboratories Limited (India)
Inventor
  • Iyappan, Sarvanakumar
  • Pawar, Dilip
  • Sathe, Dhananjay

Abstract

The present invention relates to the lectin protein for the treatment and prevention of neurodegenerative diseases. The invention further relates to the recombinant lectin protein is derived from Sclerotium rolfsii lectin having sequence 60% homologous to SEQ ID NO: 4 for the treatment and prevention of Neurodegenerative diseases. The invention specifically relates to lectin protein and its variants is derived from Sclerotium rolfsii lectin having sequence 60% homologous to SEQ ID NO: 4 for the treatment of prevention of Parkinson's disease, Alzheimer's disease, Dementia and symptoms of dementia.

IPC Classes  ?

  • A61K 38/17 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans
  • A61P 25/16 - Anti-Parkinson drugs
  • A61P 25/28 - Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
  • C07K 14/37 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from fungi

6.

RECOMBINANT GLYCAN BINDING PROTEINS AND ITS USE

      
Application Number 18691412
Status Pending
Filing Date 2022-09-30
First Publication Date 2024-11-21
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Iyappan, Saravanakumar
  • Bakshi, Gautam
  • Patil, Ganesh

Abstract

The present disclosure provides a modified protein sequence i.e., recombinantly expressed glycan binding protein. The said glycan binding protein is a variant of Sclerotium Rolfsii Lectin and is modified to include attributes like enhanced molecule stability, reduced N-terminal methionine impurities and aid in conjugation of protein to other biological and chemical agent(s).

IPC Classes  ?

  • C07K 14/37 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from fungi
  • A61K 47/64 - Drug-peptide, drug-protein or drug-polyamino acid conjugates, i.e. the modifying agent being a peptide, protein or polyamino acid which is covalently bonded or complexed to a therapeutically active agent

7.

RECOMBINANT PROTEINS, COMPOSITIONS AND METHODS OF STABILIZATION THEREOF

      
Application Number 18577495
Status Pending
Filing Date 2022-07-07
First Publication Date 2024-10-03
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Mishra, Vivek
  • Iyappan, Saravanakumar
  • Jog, Sunil

Abstract

The present invention relates to recombinant proteins, compositions and methods of stabilization thereof. The invention specifically relates to the stable recombinant protein of SEQ ID NO: 1 and composition comprising recombinant protein of SEQ ID NO: 1. The invention further relates to method of preparing, storing and stabilizing recombinant protein of SEQ ID NO: 1 and its composition for longer shelf life.

IPC Classes  ?

  • A61K 38/17 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans
  • A61J 1/06 - Ampoules or cartridges
  • A61K 47/18 - AminesAmidesUreasQuaternary ammonium compoundsAmino acidsOligopeptides having up to five amino acids
  • A61K 47/26 - Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharidesDerivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin

8.

A STABLE PHARMACEUTICAL COMPOSITION AND PROCESS FOR PREPARING THEREOF

      
Application Number IB2024052191
Publication Number 2024/194718
Status In Force
Filing Date 2024-03-07
Publication Date 2024-09-26
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Jog, Sunil
  • Khomane, Kailas Shivaji

Abstract

The present invention provides a binder free an immediate release oral stable pharmaceutical composition and process for preparing the same. Said pharmaceutical composition comprising a crystalline solriamfetol or a pharmaceutically acceptable salt thereof; and one or more pharmaceutically acceptable excipients, wherein pharmaceutically acceptable salt is solriamfetol hydrochloride in anhydrous crystalline Form A.

IPC Classes  ?

  • A61K 9/20 - Pills, lozenges or tablets
  • A61K 31/137 - Arylalkylamines, e.g. amphetamine, epinephrine, salbutamol, ephedrine

9.

PROTEINS WITH MINIMAL N-TERMINAL INITIATOR METHIONINE

      
Application Number IB2023061911
Publication Number 2024/116051
Status In Force
Filing Date 2023-11-27
Publication Date 2024-06-06
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Iyappan, Saravanakumar

Abstract

The present invention relates to a recombinant plasmid, methods and compositions for the expression of recombinant proteins with minimal N-terminal initiator methionine. The present invention also provides strategies for efficient removal of N-terminal initiator methionine in recombinant proteins expressed at industrial scale and provides method for producing proteins with minimal N-terminal initiator methionine.

IPC Classes  ?

  • C12N 9/48 - Hydrolases (3.) acting on peptide bonds, e.g. thromboplastin, leucine aminopeptidase (3.4)
  • C12N 15/52 - Genes encoding for enzymes or proenzymes
  • C12N 15/70 - Vectors or expression systems specially adapted for E. coli

10.

SUBSTITUTED TRICYCLIC COMPOUNDS

      
Application Number 18030583
Status Pending
Filing Date 2021-10-06
First Publication Date 2023-11-23
Owner Unichem Laboratories Ltd. (India)
Inventor
  • Sathe, Dhananjay G.
  • Gawas, Dnyaneshwar V.
  • Yellol, Gorakhnath S.

Abstract

The invention provides a compound of formula (I) or a pharmaceutically acceptable salt thereof; wherein Q is a group of formula Q1 or Q2; wavy bond represents the points of attachment; wherein R1 is —NRaRb; R2 is hydrogen or a C1-C10 alkyl group; Ra and Rb independently represent hydrogen or a C1-C10 alkyl group, and use of these compounds as kinase inhibitors and compositions comprising the compounds of the present invention. The invention provides a compound of formula (I) or a pharmaceutically acceptable salt thereof; wherein Q is a group of formula Q1 or Q2; wavy bond represents the points of attachment; wherein R1 is —NRaRb; R2 is hydrogen or a C1-C10 alkyl group; Ra and Rb independently represent hydrogen or a C1-C10 alkyl group, and use of these compounds as kinase inhibitors and compositions comprising the compounds of the present invention. The invention provides a compound of formula (I) or a pharmaceutically acceptable salt thereof; wherein Q is a group of formula Q1 or Q2; wavy bond represents the points of attachment; wherein R1 is —NRaRb; R2 is hydrogen or a C1-C10 alkyl group; Ra and Rb independently represent hydrogen or a C1-C10 alkyl group, and use of these compounds as kinase inhibitors and compositions comprising the compounds of the present invention. (wavy bond)

IPC Classes  ?

11.

ANTI-CANCER PROTEINS

      
Application Number 17923732
Status Pending
Filing Date 2021-04-28
First Publication Date 2023-11-02
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Iyappan, Sarvanakumar
  • Pawar, Dilip

Abstract

A recombinant lectin for use in a method of treatment of cancer by inhibiting angiogenesis in a subject. The treatment comprises administration of a therapeutically effective amount of the recombinant lectin.

IPC Classes  ?

  • C07K 14/705 - ReceptorsCell surface antigensCell surface determinants
  • A61P 35/00 - Antineoplastic agents

12.

SUBSTITUTED TRICYCLIC COMPOUNDS AND THEIR USE IN RHEUMATOID ARTHRITIS

      
Application Number IB2023052976
Publication Number 2023/194842
Status In Force
Filing Date 2023-03-25
Publication Date 2023-10-12
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Gawas, Dnyaneshwar
  • Iyappan, Saravanakumar

Abstract

11 is -NRaRb211010 alkyl group; Raand Rb11010 alkyl group.

IPC Classes  ?

  • A61K 31/437 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a five-membered ring having nitrogen as a ring hetero atom, e.g. indolizine, beta-carboline
  • A61P 19/02 - Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis

13.

SUBSTITUTED TRICYCLIC COMPOUNDS AND THEIR USE IN COVID-19

      
Application Number IB2023052974
Publication Number 2023/194840
Status In Force
Filing Date 2023-03-25
Publication Date 2023-10-12
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Gawas, Dnyaneshwar
  • Iyappan, Saravanakumar

Abstract

1 1 is -NRaRb211010 alkyl group; Raand Rb11010 alkyl group.

IPC Classes  ?

  • A61K 31/437 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a five-membered ring having nitrogen as a ring hetero atom, e.g. indolizine, beta-carboline
  • A61P 31/14 - Antivirals for RNA viruses

14.

SUBSTITUTED TRICYCLIC COMPOUNDS AND THEIR USE IN ULCERATIVE COLITIS

      
Application Number IB2023052975
Publication Number 2023/194841
Status In Force
Filing Date 2023-03-25
Publication Date 2023-10-12
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Gawas, Dnyaneshwar
  • Iyappan, Saravanakumar

Abstract

1 1 is -NRaRb2 11010 alkyl group; Ra and Rb11010 alkyl group.

IPC Classes  ?

  • A61K 31/437 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a five-membered ring having nitrogen as a ring hetero atom, e.g. indolizine, beta-carboline
  • A61P 1/00 - Drugs for disorders of the alimentary tract or the digestive system

15.

RECOMBINANT PROTEIN FOR TREATING SARS-COV2 DISEASE

      
Application Number IB2022062211
Publication Number 2023/111892
Status In Force
Filing Date 2022-12-14
Publication Date 2023-06-22
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Iyappan, Saravanakumar

Abstract

Sclerotium rolfsiiSclerotium rolfsiiSclerotium rolfsiiSclerotium rolfsii lectin protein may comprise an amino acid sequence having at least 70% homology to SEQ ID NO:1.

IPC Classes  ?

  • A61K 38/17 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans
  • A61P 31/12 - Antivirals
  • A61P 31/14 - Antivirals for RNA viruses

16.

RECOMBINANT PROTEIN FOR SARS-COV2 DISEASE

      
Document Number 03239504
Status Pending
Filing Date 2022-12-14
Open to Public Date 2023-06-22
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Iyappan, Saravanakumar

Abstract

The present invention relates to the protein for treatment of infectious disease caused by Coronaviridae. In particular, the invention relates to a recombinant Sclerotium rolfsii lectin for use in the treatment, reduction in progression and curing of SARS-COV2disease in a subject in need thereof. Pharmaceutical compositions comprising said recombinant Sclerotium rolfsii lectin are also described. The recombinant Sclerotium rolfsii lectin protein may comprise an amino acid sequence having at least 70% homology to SEQ ID NO:1.

IPC Classes  ?

  • A61K 38/17 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans
  • A61P 31/12 - Antivirals
  • A61P 31/14 - Antivirals for RNA viruses

17.

RECOMBINANT GLYCAN BINDING PROTEINS AND ITS USE

      
Document Number 03229988
Status Pending
Filing Date 2022-09-30
Open to Public Date 2023-04-06
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Iyappan, Saravanakumar
  • Bakshi, Gautam
  • Patil, Ganesh

Abstract

The present disclosure provides a modified protein sequence i.e., recombinantly expressed glycan binding protein. The said glycan binding protein is a variant of Sclerotium Rolfsii Lectin and is modified to include attributes like enhanced molecule stability, reduced N-terminal methionine impurities and aid in conjugation of protein to other biological and chemical agent(s).

IPC Classes  ?

  • A61K 38/00 - Medicinal preparations containing peptides
  • A61K 47/64 - Drug-peptide, drug-protein or drug-polyamino acid conjugates, i.e. the modifying agent being a peptide, protein or polyamino acid which is covalently bonded or complexed to a therapeutically active agent
  • A61P 35/00 - Antineoplastic agents
  • C07K 14/37 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from fungi
  • C12N 15/31 - Genes encoding microbial proteins, e.g. enterotoxins

18.

LECTIN-DRUG CONJUGATES

      
Document Number 03230395
Status Pending
Filing Date 2022-09-30
Open to Public Date 2023-04-06
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Iyappan, Saravanakumar
  • Bakshi, Gautam
  • Patil, Ganesh

Abstract

The present disclosure relates to protein-drug conjugates. The present disclosure specifically relates to the protein-drug conjugates, wherein the protein is a lectin protein having amino acid sequence of SEQ ID NO: 1; or lectin protein having at least 70% sequence identity to SEQ ID NO: 1. The disclosure further relates to process and composition of protein-drug conjugates and method of use thereof.

IPC Classes  ?

  • A61K 47/64 - Drug-peptide, drug-protein or drug-polyamino acid conjugates, i.e. the modifying agent being a peptide, protein or polyamino acid which is covalently bonded or complexed to a therapeutically active agent
  • A61P 35/00 - Antineoplastic agents
  • C07K 14/37 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from fungi
  • C07K 14/375 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from fungi from Basidiomycetes
  • C12N 15/31 - Genes encoding microbial proteins, e.g. enterotoxins

19.

LECTIN-DRUG CONJUGATES

      
Application Number IB2022059340
Publication Number 2023/053082
Status In Force
Filing Date 2022-09-30
Publication Date 2023-04-06
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Iyappan, Saravanakumar
  • Bakshi, Gautam
  • Patil, Ganesh

Abstract

The present disclosure relates to protein-drug conjugates. The present disclosure specifically relates to the protein-drug conjugates, wherein the protein is a lectin protein having amino acid sequence of SEQ ID NO: 1; or lectin protein having at least 70% sequence identity to SEQ ID NO: 1. The disclosure further relates to process and composition of protein-drug conjugates and method of use thereof.

IPC Classes  ?

  • A61K 47/64 - Drug-peptide, drug-protein or drug-polyamino acid conjugates, i.e. the modifying agent being a peptide, protein or polyamino acid which is covalently bonded or complexed to a therapeutically active agent
  • A61P 35/00 - Antineoplastic agents

20.

RECOMBINANT GLYCAN BINDING PROTEINS AND ITS USE

      
Application Number IB2022059341
Publication Number 2023/053083
Status In Force
Filing Date 2022-09-30
Publication Date 2023-04-06
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Iyappan, Saravanakumar
  • Bakshi, Gautam
  • Patil, Ganesh

Abstract

The present disclosure provides a modified protein sequence i.e., recombinantly expressed glycan binding protein. The said glycan binding protein is a variant of Sclerotium Rolfsii Lectin and is modified to include attributes like enhanced molecule stability, reduced N-terminal methionine impurities and aid in conjugation of protein to other biological and chemical agent(s).

IPC Classes  ?

  • C07K 14/37 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from fungi
  • A61K 47/64 - Drug-peptide, drug-protein or drug-polyamino acid conjugates, i.e. the modifying agent being a peptide, protein or polyamino acid which is covalently bonded or complexed to a therapeutically active agent
  • A61P 35/00 - Antineoplastic agents
  • A61K 38/00 - Medicinal preparations containing peptides

21.

PROTEIN COMPOSITIONS FOR THE TREATMENT OF INFLAMMATORY DISEASES

      
Document Number 03227834
Status Pending
Filing Date 2022-08-27
Open to Public Date 2023-03-09
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Mishra, Vivek
  • Jog, Sunil
  • Bakshi, Gautam

Abstract

The present invention relates to the pharmaceutical compositions of lectin proteins and its use for the prevention, treatment and cure of inflammation, including inflammatory disease. The invention specifically relates to the pharmaceutical compositions for topical application comprising lectin proteins and its use for prevention, treatment and cure of inflammation due to chemotherapy and/or radiotherapy. The lectin may comprise an amino acid sequence having sequence of SEQ ID NO: 1 or at least 70% homology to SEQ ID NO: 1.

IPC Classes  ?

  • A61K 38/16 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof
  • A61P 1/02 - Stomatological preparations, e.g. drugs for caries, aphtae, periodontitis
  • A61P 1/04 - Drugs for disorders of the alimentary tract or the digestive system for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants

22.

PROTEIN COMPOSITIONS FOR THE TREATMENT OF INFLAMMATORY DISEASES

      
Application Number IB2022058039
Publication Number 2023/031751
Status In Force
Filing Date 2022-08-27
Publication Date 2023-03-09
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Mishra, Vivek
  • Jog, Sunil
  • Bakshi, Gautam

Abstract

The present invention relates to the pharmaceutical compositions of lectin proteins and its use for the prevention, treatment and cure of inflammation, including inflammatory disease. The invention specifically relates to the pharmaceutical compositions for topical application comprising lectin proteins and its use for prevention, treatment and cure of inflammation due to chemotherapy and/or radiotherapy. The lectin may comprise an amino acid sequence having sequence of SEQ ID NO: 1 or at least 70% homology to SEQ ID NO: 1.

IPC Classes  ?

  • A61K 38/16 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof
  • A61P 1/02 - Stomatological preparations, e.g. drugs for caries, aphtae, periodontitis
  • A61P 1/04 - Drugs for disorders of the alimentary tract or the digestive system for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants

23.

RECOMBINANT PROTEINS, COMPOSITIONS AND METHODS OF STABILIZATION THEREOF

      
Document Number 03223964
Status Pending
Filing Date 2022-07-07
Open to Public Date 2023-01-12
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Mishra, Vivek
  • Iyappan, Saravanakumar
  • Jog, Sunil

Abstract

The present invention relates to recombinant proteins, compositions and methods of stabilization thereof. The invention specifically relates to the stable recombinant protein of SEQ ID NO: 1 and composition comprising recombinant protein of SEQ ID NO: 1. The invention further relates to method of preparing, storing and stabilizing recombinant protein of SEQ ID NO: 1 and its composition for longer shelf life.

IPC Classes  ?

  • A61J 1/06 - Ampoules or cartridges
  • A61K 38/17 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans

24.

RECOMBINANT PROTEINS, COMPOSITIONS AND METHODS OF STABILIZATION THEREOF

      
Application Number IB2022056276
Publication Number 2023/281432
Status In Force
Filing Date 2022-07-07
Publication Date 2023-01-12
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Mishra, Vivek
  • Iyappan, Saravanakumar
  • Jog, Sunil

Abstract

The present invention relates to recombinant proteins, compositions and methods of stabilization thereof. The invention specifically relates to the stable recombinant protein of SEQ ID NO: 1 and composition comprising recombinant protein of SEQ ID NO: 1. The invention further relates to method of preparing, storing and stabilizing recombinant protein of SEQ ID NO: 1 and its composition for longer shelf life.

IPC Classes  ?

  • A61K 9/08 - Solutions
  • A61J 1/05 - Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids
  • A61K 47/18 - AminesAmidesUreasQuaternary ammonium compoundsAmino acidsOligopeptides having up to five amino acids
  • A61K 47/26 - Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharidesDerivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
  • A61K 38/16 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof
  • A61K 9/19 - Particulate form, e.g. powders lyophilised

25.

STABLE FORMULATIONS OF RECOMBINANT PROTEINS

      
Application Number 17623748
Status Pending
Filing Date 2020-07-07
First Publication Date 2022-10-27
Owner Unichem Laboratories Ltd (India)
Inventor
  • Sathe, Dhananjay
  • Padhi, Bijay
  • Mishra, Vivek
  • Jain, Anupam

Abstract

The present invention relates to stable formulations of recombinant proteins. The invention specifically relates to the formulations of recombinant lectins derived from Sclerotium rolfsii lectin. The formulation comprises recombinant lectin derived from Sclerotium rolfsii lectin and a pharmaceutically acceptable excipient. The invention also relates to the stable liquid and/or lyophilized formulations comprising recombinant lectins derived from Sclerotium rolfsii lectin.

IPC Classes  ?

  • A61K 38/16 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof
  • A61K 36/07 - Basidiomycota, e.g. Cryptococcus
  • A61K 47/18 - AminesAmidesUreasQuaternary ammonium compoundsAmino acidsOligopeptides having up to five amino acids
  • A61K 47/26 - Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharidesDerivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
  • A61K 47/22 - Heterocyclic compounds, e.g. ascorbic acid, tocopherol or pyrrolidones
  • A61K 9/19 - Particulate form, e.g. powders lyophilised

26.

COMBINATION OF CHEMOTHERAPY WITH RECOMBINANT S. ROLFSII LECTIN

      
Application Number 17294570
Status Pending
Filing Date 2019-11-18
First Publication Date 2022-08-18
Owner Unichem Laboratories Ltd (India)
Inventor
  • Sathe, Dhananjay
  • Kumar, Sudeep
  • Bachate, Sachin Prabhakar
  • Kankonkar, Mohanish Pradeep

Abstract

The present invention relates to the combination chemotherapy with recombinant lectin protein. The invention specifically relates to the cytotoxic effect of recombinant lectin protein having amino acid sequence of SEQ ID NO: 1 in combination with other therapeutic agents, wherein the other therapeutic agents are anti-cancer agents. The combinations are highly synergistic and efficacious against several cancers.

IPC Classes  ?

  • A61K 38/16 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof
  • A61K 33/243 - PlatinumCompounds thereof
  • A61P 35/00 - Antineoplastic agents
  • A61K 31/435 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
  • A61K 31/495 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two nitrogen atoms as the only ring hetero atoms, e.g. piperazine

27.

EXTENDED RELEASE COMPOSITION OF TOFACITINIB

      
Application Number 17440124
Status Pending
Filing Date 2020-03-04
First Publication Date 2022-08-11
Owner Unichem Laboratories Limited (India)
Inventor
  • Sathe, Dhananjay
  • Padhi, Bijay
  • Baheti, Ankit
  • Bali, Sachin

Abstract

The present disclosure provides an extended release composition of tofacitinib for oral administration, and methods of making the composition. The extended release composition employs a matrix drug core comprising tofacitinib or a pharmaceutically acceptable salt thereof and at least one release controlling polymer. The matrix drug core is surrounded by a soluble functional coating comprising at least one coating polymer and at least one pharmaceutically acceptable excipient.

IPC Classes  ?

  • A61K 9/28 - DrageesCoated pills or tablets
  • A61K 31/519 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
  • A61K 9/20 - Pills, lozenges or tablets

28.

LECTIN PROTEIN FOR TREATMENT AND PREVENTION OF NEURODEGENERATIVE DISEASES

      
Document Number 03204205
Status Pending
Filing Date 2022-01-05
Open to Public Date 2022-07-14
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Iyappan, Sarvanakumar
  • Pawar, Dilip
  • Sathe, Dhananjay

Abstract

The present invention relates to the lectin protein for the treatment and prevention of neurodegenerative diseases. The invention further relates to the recombinant lectin protein is derived from Sclerotium rolfsii lectin having sequence 60% homologous to SEQ ID NO: 4 for the treatment and prevention of Neurodegenerative diseases. The invention specifically relates to: lectin protein and its variants is derived from Sclerotium rolfsii lectin, having sequence 60% homologous to SEQ ID NO: 4 for the treatment of prevention of Parkinson's disease, Alzheimer's disease, Dementia and symptoms of dementia.

IPC Classes  ?

  • A61K 38/17 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans
  • A61P 25/00 - Drugs for disorders of the nervous system

29.

LECTIN PROTEIN FOR TREATMENT AND PREVENTION OF NEURODEGENERATIVE DISEASES

      
Application Number IB2022050056
Publication Number 2022/149068
Status In Force
Filing Date 2022-01-05
Publication Date 2022-07-14
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Iyappan, Sarvanakumar
  • Pawar, Dilip
  • Sathe, Dhananjay

Abstract

Sclerotium rolfsiiSclerotium rolfsiiSclerotium rolfsii lectin, having sequence 60% homologous to SEQ ID NO: 4 for the treatment of prevention of Parkinson's disease, Alzheimer's disease, Dementia and symptoms of dementia.

IPC Classes  ?

  • A61K 38/17 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans
  • A61P 25/00 - Drugs for disorders of the nervous system

30.

Novel Process for the Preparation of Filgotinib and Intermediates Thereof

      
Application Number 17599642
Status Pending
Filing Date 2020-03-28
First Publication Date 2022-06-16
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay G.
  • Das, Arijit
  • Patel, Bhavesh
  • Kshirsagar, Eknath
  • Patil, Dipak
  • Matale, Ashok

Abstract

The present invention relates to a novel process for the preparation of filgotinib or a pharmaceutically acceptable salt and intermediates thereof which avoid Suzuki coupling reaction.

IPC Classes  ?

  • C07D 471/04 - Ortho-condensed systems
  • C07D 213/75 - Amino or imino radicals, acylated by carboxylic or carbonic acids, or by sulfur or nitrogen analogues thereof, e.g. carbamates

31.

SUBSTITUTED TRICYCLIC COMPOUNDS

      
Document Number 03190745
Status Pending
Filing Date 2021-10-06
Open to Public Date 2022-04-14
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay G.
  • Gawas, Dnyaneshwar V.
  • Yellol, Gorakhnath S.

Abstract

The invention provides a compound of formula (I) or a pharmaceutically acceptable salt thereof; wherein Q is a group of formula Q1 or Q2; wavy bond represents the points of attachment; wherein R1 is ?NRaRb; R2 is hydrogen or a C1-C10 alkyl group; Ra and Rb independently represent hydrogen or a C1-C10 alkyl group, and use of these compounds as kinase inhibitors and compositions comprising the compounds of the present invention.

IPC Classes  ?

  • A61K 31/437 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a five-membered ring having nitrogen as a ring hetero atom, e.g. indolizine, beta-carboline
  • A61P 29/00 - Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agentsNon-steroidal antiinflammatory drugs [NSAID]
  • A61P 35/00 - Antineoplastic agents
  • A61P 37/02 - Immunomodulators
  • A61P 37/06 - Immunosuppressants, e.g. drugs for graft rejection
  • C07D 471/14 - Ortho-condensed systems

32.

SUBSTITUTED TRICYCLIC COMPOUNDS

      
Application Number IB2021059150
Publication Number 2022/074572
Status In Force
Filing Date 2021-10-06
Publication Date 2022-04-14
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay G.
  • Gawas, Dnyaneshwar V.
  • Yellol, Gorakhnath S.

Abstract

11 is –NRaRb211010 alkyl group; Raand Rb11010 alkyl group, and use of these compounds as kinase inhibitors and compositions comprising the compounds of the present invention.

IPC Classes  ?

  • A61P 29/00 - Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agentsNon-steroidal antiinflammatory drugs [NSAID]
  • A61P 37/00 - Drugs for immunological or allergic disorders
  • C07D 471/14 - Ortho-condensed systems

33.

PROTEIN FOR TREATMENT OF INFLAMMATORY DISEASES

      
Application Number 17274819
Status Pending
Filing Date 2019-09-14
First Publication Date 2022-02-17
Owner Unichem Laboratories Ltd (India)
Inventor
  • Sathe, Dhananjay
  • Kumar, Sudeep
  • Katdare, Mamata

Abstract

The present invention relates to a lectin for use in the treatment, reduction in progression and curing of inflammation in a subject in need thereof. Pharmaceutical compositions comprising said lectin are also described. The lectin may comprise an amino acid sequence having sequence of SEQ ID NO: 1 or at least 60% homology to SEQ ID NO: 1.

IPC Classes  ?

  • A61K 38/17 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans
  • A61P 19/02 - Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis

34.

Process for the preparation of Rivaroxaban involving novel intermediate

      
Application Number 17306617
Grant Number 11891384
Status In Force
Filing Date 2021-05-03
First Publication Date 2021-12-16
Grant Date 2024-02-06
Owner Unichem Laboratories Ltd (India)
Inventor
  • Sathe, Dhananjay G.
  • Das, Arijit
  • Raikar, Sanjay
  • Surve, Yashwant S.
  • Pandit, Bhushan S.

Abstract

The present invention relates to the novel key intermediate, 4-{4-[(SS)-(Aminomethyl)-2-oxo-1,3-oxazolidin-3-yl]-phenyl}-morpholin-3-one perchlorate, m the synthesis of rivaroxaban. The invention further relates to the crystalline form of novel intermediate, the process to prepare the novel intermediate and method of preparing rivaroxaban using this novel intermediate. The invention provides an improved and efficient process for preparation of Rivaroxaban.

IPC Classes  ?

  • C07D 413/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings
  • C07D 413/10 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing aromatic rings
  • A61K 31/5377 - 1,4-Oxazines, e.g. morpholine not condensed and containing further heterocyclic rings, e.g. timolol
  • A61P 7/02 - Antithrombotic agentsAnticoagulantsPlatelet aggregation inhibitors

35.

ANTI-CANCER PROTEINS

      
Document Number 03177876
Status Pending
Filing Date 2021-04-28
Open to Public Date 2021-11-11
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Iyappan, Sarvanakumar
  • Pawar, Dilip

Abstract

A recombinant lectin for use in a method of treatment of cancer by inhibiting angiogenesis in a subject. The treatment comprises administration of a therapeutically effective amount of the recombinant lectin.

IPC Classes  ?

  • A61K 38/17 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans
  • A61P 35/00 - Antineoplastic agents

36.

ANTI-CANCER PROTEINS

      
Application Number IB2021053503
Publication Number 2021/224724
Status In Force
Filing Date 2021-04-28
Publication Date 2021-11-11
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Iyappan, Sarvanakumar
  • Pawar, Dilip

Abstract

A recombinant lectin for use in a method of treatment of cancer by inhibiting angiogenesis in a subject. The treatment comprises administration of a therapeutically effective amount of the recombinant lectin.

IPC Classes  ?

  • A61K 38/17 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans
  • A61P 35/00 - Antineoplastic agents

37.

Process for the preparation of recombinant lectin protein

      
Application Number 17273044
Grant Number 12291733
Status In Force
Filing Date 2019-09-05
First Publication Date 2021-10-21
Grant Date 2025-05-06
Owner Unichem Laboratories Ltd (India)
Inventor
  • Sathe, Dhananjay
  • Kumar, Sudeep
  • Katdare, Mamata

Abstract

The present invention relates to the process to prepare recombinant lectin having amino acid sequence of SEQ ID NO:1, wherein the process comprises fed-batch fermentation of a clone in a host cell at specific feeding rate with carbon to Nitrogen ratio of 3:1 to 6:1. The invention also relates to the process of purification of recombinant lectin having amino acid sequence of SEQ ID NO: 1.

IPC Classes  ?

  • C12P 21/02 - Preparation of peptides or proteins having a known sequence of two or more amino acids, e.g. glutathione
  • B01D 15/32 - Bonded phase chromatography, e.g. with normal bonded phase, reversed phase or hydrophobic interaction
  • B01D 15/36 - Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion
  • C07K 1/18 - Ion-exchange chromatography
  • C07K 1/20 - Partition-, reverse-phase or hydrophobic interaction chromatography
  • C07K 1/34 - ExtractionSeparationPurification by filtration, ultrafiltration or reverse osmosis
  • C07K 1/36 - ExtractionSeparationPurification by a combination of two or more processes of different types
  • C07K 14/42 - Lectins, e.g. concanavalin, phytohaemagglutinin
  • C07K 14/47 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans from vertebrates from mammals

38.

Recombinant lectin variants

      
Application Number 17272090
Grant Number 11965003
Status In Force
Filing Date 2019-08-30
First Publication Date 2021-10-14
Grant Date 2024-04-23
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Kumar, Sudeep

Abstract

A modified lectin protein is provided having at least one amino acid modification in an amino acid sequence of SEQ ID NO. 1 orin an amino acid sequence having at least 60% homology thereto. The amino acid modification is selected from one of more of the following: at least one amino acid modification in a carbohydrate binding site; at least one amino acid modification in the N-terminus; at least one amino acid modification at position 76; or at least one amino acid modification at position 44 or 89. The modified lectin protein does not consist of the amino acid sequence of any of SEQ ID NOs: 2 to 4.

IPC Classes  ?

  • C07K 14/42 - Lectins, e.g. concanavalin, phytohaemagglutinin
  • A61K 38/00 - Medicinal preparations containing peptides

39.

STABLE FORMULATIONS OF RECOMBINANT PROTEINS

      
Document Number 03140609
Status Pending
Filing Date 2020-07-07
Open to Public Date 2021-01-14
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Padhi, Bijay
  • Mishra, Vivek
  • Jain, Anupam

Abstract

The present invention relates to stable formulations of recombinant proteins. The invention specifically relates to the formulations of recombinant lectins derived from Sclerotium rolfsii lectin. The formulation comprises recombinant lectin derived from Sclerotium rolfsii lectin and a pharmaceutically acceptable excipient. The invention also relates to the stable liquid and/or lyophilized formulations comprising recombinant lectins derived from Sclerotium rolfsii lectin.

IPC Classes  ?

  • A61K 38/17 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans
  • A61K 47/02 - Inorganic compounds
  • A61K 47/18 - AminesAmidesUreasQuaternary ammonium compoundsAmino acidsOligopeptides having up to five amino acids
  • A61K 47/26 - Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharidesDerivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
  • A61P 35/00 - Antineoplastic agents

40.

STABLE FORMULATIONS OF RECOMBINANT PROTEINS

      
Application Number IB2020056361
Publication Number 2021/005500
Status In Force
Filing Date 2020-07-07
Publication Date 2021-01-14
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Padhi, Bijay
  • Mishra, Vivek
  • Jain, Anupam

Abstract

Sclerotium rolfsii Sclerotium rolfsiiSclerotium rolfsiiSclerotium rolfsii lectin.

IPC Classes  ?

  • A61K 9/08 - Solutions
  • A61K 9/19 - Particulate form, e.g. powders lyophilised
  • A61K 47/02 - Inorganic compounds
  • A61K 47/18 - AminesAmidesUreasQuaternary ammonium compoundsAmino acidsOligopeptides having up to five amino acids
  • A61K 47/26 - Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharidesDerivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin

41.

NOVEL PROCESS FOR THE PREPARATION OF FILGOTINIB AND INTERMEDIATES THEREOF

      
Application Number IB2020052977
Publication Number 2020/201975
Status In Force
Filing Date 2020-03-28
Publication Date 2020-10-08
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay G.
  • Das, Arijit
  • Patel, Bhavesh
  • Kshirsagar, Eknath
  • Patil, Dipak
  • Matale, Ashok

Abstract

The present invention relates to a novel process for the preparation of filgotinib or a pharmaceutically acceptable salt and intermediates thereof which avoid Suzuki coupling reaction. (I)

IPC Classes  ?

42.

EXTENDED RELEASE COMPOSITION OF TOFACITINIB

      
Application Number IB2020051829
Publication Number 2020/194081
Status In Force
Filing Date 2020-03-04
Publication Date 2020-10-01
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Padhi, Bijay
  • Baheti, Ankit
  • Bali, Sachin

Abstract

The present disclosure provides an extended release composition of tofacitinib for oral administration, and methods of making the composition. The extended release composition employs a matrix drug core comprising tofacitinib or a pharmaceutically acceptable salt thereof and at least one release controlling polymer. The matrix drug core is surrounded by a soluble functional coating comprising at least one coating polymer and at least one pharmaceutically acceptable excipient.

IPC Classes  ?

  • A61K 31/40 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
  • A61K 31/519 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
  • A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca

43.

Pharmaceutical compositions of apremilast

      
Application Number 16754553
Grant Number 11266628
Status In Force
Filing Date 2018-10-01
First Publication Date 2020-08-20
Grant Date 2022-03-08
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Pimple, Srikant
  • Gupta, Pradeep Kumar
  • Jadhav, Vishal

Abstract

The present invention relates to a disintegrant free pharmaceutical composition comprising apremilast or pharmaceutically acceptable salts thereof and one or more pharmaceutically acceptable excipients. Particularly the present invention relates to disintegrant free immediate release dosage form comprising apremilast or pharmaceutically acceptable salts thereof and one or more pharmaceutically acceptable excipients. It further relates to process of preparing such composition and its use in psoriatic arthritis and psoriasis.

IPC Classes  ?

  • A61K 31/4035 - Isoindoles, e.g. phthalimide
  • A61K 9/00 - Medicinal preparations characterised by special physical form
  • A61K 9/20 - Pills, lozenges or tablets
  • A61K 9/28 - DrageesCoated pills or tablets

44.

Pharmaceutical compositions comprising cinacalcet hydrochloride and one or more binders

      
Application Number 16637922
Grant Number 11331283
Status In Force
Filing Date 2018-08-13
First Publication Date 2020-07-09
Grant Date 2022-05-17
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Pimple, Srikant
  • Maurya, Pravin Kumar

Abstract

10 equal to or less than 5 μm and one or more and binders in an amount of 0.9% w/w or less, relative to the total weight of composition, where the composition is not free of binder and that the total amount of binder does not exceed 0.9% w/w relative to the total weight of the composition.

IPC Classes  ?

  • A61K 31/135 - Amines, e.g. amantadine having aromatic rings, e.g. methadone
  • A61K 9/20 - Pills, lozenges or tablets

45.

Bioequivalent pharmaceutical composition of vortioxetine hydrobromide

      
Application Number 16485869
Grant Number 11020390
Status In Force
Filing Date 2018-02-15
First Publication Date 2020-06-18
Grant Date 2021-06-01
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Padhi, Bijay Kumar
  • Maurya, Pravin Kumar

Abstract

The invention relates to vortioxetine hydrobromide having particle size distribution of D98 100-200μ, D50 35-90μ and D5 7-30μ as well as to a stable, reproducible and bioequivalent pharmaceutical composition comprising vortioxetine hydrobromide having particle size distribution of D98 100-200μ, D50 35-90μ and D5 7-30μ and one or more pharmaceutically acceptable excipient. It is produced by wet granulation techniques.

IPC Classes  ?

  • A61K 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
  • A61K 9/20 - Pills, lozenges or tablets

46.

Process to prepare n-[2-[(1s)-1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulphonyl) ethyl]-1, 3-dioxo-2,3-dihydro-1h-isoindol-4yl]acetamide

      
Application Number 16609232
Grant Number 10919855
Status In Force
Filing Date 2018-04-27
First Publication Date 2020-06-11
Grant Date 2021-02-16
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay G.
  • Das, Arijit
  • Patel, Bhavesh B.
  • Patil, Dipak Subhash
  • Matale, Ashok Govind
  • Kshirsagar, Eknath Kamalakar

Abstract

An alternative and improved process for the preparation of Apremilast (Formula I) and Apremilast form B or a pharmaceutically acceptable salt thereof is provided. The novel process includes hydrogenation in acetone, Cyclization and acetylation followed by condensation in methyl isobutyl ketone (MIBK) and acetic acid mixture in specific volume ratios.

IPC Classes  ?

  • C07D 209/48 - Iso-indolesHydrogenated iso-indoles with oxygen atoms in positions 1 and 3, e.g. phthalimide

47.

COMBINATION OF CHEMOTHERAPY WITH RECOMBINANT S. ROLFSII LECTIN

      
Document Number 03118053
Status Pending
Filing Date 2019-11-18
Open to Public Date 2020-05-28
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Kumar, Sudeep
  • Bachate, Sachin Prabhakar
  • Kankonkar, Mohanish Pradeep

Abstract

The present invention relates to the combination chemotherapy with recombinant lectin protein. The invention specifically relates to the cytotoxic effect of recombinant lectin protein having amino acid sequence of SEQ ID NO: 1 in combination with other therapeutic agents, wherein the other therapeutic agents are anti-cancer agents. The combinations are highly synergistic and efficacious against several cancers.

IPC Classes  ?

  • A61K 31/337 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having four-membered rings, e.g. taxol
  • A61K 31/401 - ProlineDerivatives thereof, e.g. captopril
  • A61K 31/513 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim having oxo groups directly attached to the heterocyclic ring, e.g. cytosine
  • A61K 33/24 - Heavy metalsCompounds thereof
  • A61K 38/00 - Medicinal preparations containing peptides
  • A61K 38/16 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof
  • A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
  • A61P 35/00 - Antineoplastic agents
  • C07K 14/42 - Lectins, e.g. concanavalin, phytohaemagglutinin

48.

COMBINATION OF CHEMOTHERAPY WITH RECOMBINANT S. ROLFSII LECTIN

      
Application Number IB2019059873
Publication Number 2020/104911
Status In Force
Filing Date 2019-11-18
Publication Date 2020-05-28
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Kumar, Sudeep
  • Bachate, Sachin Prabhakar
  • Kankonkar, Mohanish Pradeep

Abstract

The present invention relates to the combination chemotherapy with recombinant lectin protein. The invention specifically relates to the cytotoxic effect of recombinant lectin protein having amino acid sequence of SEQ ID NO: 1 in combination with other therapeutic agents, wherein the other therapeutic agents are anti-cancer agents. The combinations are highly synergistic and efficacious against several cancers.

IPC Classes  ?

  • A61K 31/337 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having four-membered rings, e.g. taxol
  • A61K 31/401 - ProlineDerivatives thereof, e.g. captopril
  • A61K 31/513 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim having oxo groups directly attached to the heterocyclic ring, e.g. cytosine
  • A61K 33/24 - Heavy metalsCompounds thereof
  • A61K 38/00 - Medicinal preparations containing peptides
  • A61K 38/16 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof
  • A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
  • A61P 35/00 - Antineoplastic agents
  • C07K 14/42 - Lectins, e.g. concanavalin, phytohaemagglutinin

49.

AN IMPROVED PROCESS FOR THE PREPARATION OF RECOMBINANT LECTIN PROTEIN

      
Document Number 03111367
Status Pending
Filing Date 2019-09-05
Open to Public Date 2020-04-16
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Kumar, Sudeep
  • Katdare, Mamata

Abstract

The present invention relates to the process to prepare recombinant lectin having amino acid sequence of SEQ ID NO:l, wherein the process comprises fed-batch fermentation of a clone in a host cell at specific feeding rate with carbon to Nitrogen ratio of 3:1 to 6:1. The invention also relates to the process of purification of recombinant lectin having amino acid sequence of SEQ ID NO: 1.

IPC Classes  ?

  • C07K 14/42 - Lectins, e.g. concanavalin, phytohaemagglutinin
  • C07K 14/47 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans from vertebrates from mammals
  • C12P 21/02 - Preparation of peptides or proteins having a known sequence of two or more amino acids, e.g. glutathione

50.

PROTEIN FOR TREATMENT OF INFLAMMATORY DISEASES

      
Document Number 03112250
Status Pending
Filing Date 2019-09-14
Open to Public Date 2020-04-16
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Kumar, Sudeep
  • Katdare, Mamata

Abstract

The present invention relates to a lectin for use in the treatment, reduction in progression and curing of inflammation in a subject in need thereof. Pharmaceutical compositions comprising said lectin are also described. The lectin may comprise an amino acid sequence having sequence of SEQ ID NO: 1 or at least 60% homology to SEQ ID NO: 1.

IPC Classes  ?

  • A61K 38/16 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof
  • A61P 19/02 - Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis
  • A61P 29/00 - Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agentsNon-steroidal antiinflammatory drugs [NSAID]
  • C07K 14/47 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans from vertebrates from mammals

51.

AN IMPROVED PROCESS FOR THE PREPARATION OF RECOMBINANT LECTIN PROTEIN

      
Application Number IB2019057471
Publication Number 2020/074977
Status In Force
Filing Date 2019-09-05
Publication Date 2020-04-16
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Kumar, Sudeep
  • Katdare, Mamata

Abstract

The present invention relates to the process to prepare recombinant lectin having amino acid sequence of SEQ ID NO:l, wherein the process comprises fed-batch fermentation of a clone in a host cell at specific feeding rate with carbon to Nitrogen ratio of 3:1 to 6:1. The invention also relates to the process of purification of recombinant lectin having amino acid sequence of SEQ ID NO: 1.

IPC Classes  ?

  • C07K 14/42 - Lectins, e.g. concanavalin, phytohaemagglutinin
  • C07K 14/47 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans from vertebrates from mammals
  • C12P 21/02 - Preparation of peptides or proteins having a known sequence of two or more amino acids, e.g. glutathione

52.

PROTEIN FOR TREATMENT OF INFLAMMATORY DISEASES

      
Application Number IB2019057757
Publication Number 2020/074984
Status In Force
Filing Date 2019-09-14
Publication Date 2020-04-16
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Kumar, Sudeep
  • Katdare, Mamata

Abstract

The present invention relates to a lectin for use in the treatment, reduction in progression and curing of inflammation in a subject in need thereof. Pharmaceutical compositions comprising said lectin are also described. The lectin may comprise an amino acid sequence having sequence of SEQ ID NO: 1 or at least 60% homology to SEQ ID NO: 1.

IPC Classes  ?

  • A61K 38/16 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof
  • C07K 14/47 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans from vertebrates from mammals
  • A61P 19/02 - Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis
  • A61P 29/00 - Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agentsNon-steroidal antiinflammatory drugs [NSAID]

53.

RECOMBINANT LECTIN VARIANTS

      
Document Number 03108842
Status Pending
Filing Date 2019-08-30
Open to Public Date 2020-03-05
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Kumar, Sudeep

Abstract

A modified lectin protein is provided having at least one amino acid modification in an amino acid sequence of SEQ ID NO. 1 orin an amino acid sequence having at least 60% homologythereto. The amino acid modification is selected from one of more of the following: at least one amino acid modification in a carbohydrate binding site; at least one amino acid modification in the N-terminus;at least one amino acid modification at position 76; or at least one amino acid modification at position 44 or 89. The modified lectin protein does not consist of the amino acid sequence of any of SEQ ID NOs: 2 to 4.

IPC Classes  ?

  • A61K 38/17 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans
  • C07K 14/705 - ReceptorsCell surface antigensCell surface determinants

54.

RECOMBINANT LECTIN VARIANTS

      
Application Number IB2019057314
Publication Number 2020/044296
Status In Force
Filing Date 2019-08-30
Publication Date 2020-03-05
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay
  • Kumar, Sudeep

Abstract

A modified lectin protein is provided having at least one amino acid modification in an amino acid sequence of SEQ ID NO. 1 orin an amino acid sequence having at least 60% homologythereto. The amino acid modification is selected from one of more of the following: at least one amino acid modification in a carbohydrate binding site; at least one amino acid modification in the N-terminus;at least one amino acid modification at position 76; or at least one amino acid modification at position 44 or 89. The modified lectin protein does not consist of the amino acid sequence of any of SEQ ID NOs: 2 to 4.

IPC Classes  ?

  • C07K 14/705 - ReceptorsCell surface antigensCell surface determinants
  • A61K 38/17 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans

55.

LEADER SEQUENCE FOR HIGHER EXPRESSION OF RECOMBINANT PROTEINS

      
Application Number IB2019055080
Publication Number 2020/026045
Status In Force
Filing Date 2019-06-18
Publication Date 2020-02-06
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Kumar, Sudeep
  • Bachate, Sachin Prabhakar
  • Kompelli, Saikumar
  • Chougule, Rahul Subhash

Abstract

The present invention relates to the leader sequence for higher expression of recombinant proteins. The invention further relates to the process for preparation of insulin and insulin analogues using leader sequence. The leader peptides significantly increase the expression of pre-proinsulin. The present invention also relates to the protein sequences prepared by fusion of fragments with the leader sequences of the present invention. The invention is demonstrated by preparing and Insulin and its analogues using said leader sequences.

IPC Classes  ?

  • C07K 14/62 - Insulins
  • C07K 14/575 - Hormones
  • C12P 21/06 - Preparation of peptides or proteins produced by the hydrolysis of a peptide bond, e.g. hydrolysate products

56.

Process for the preparation of rivaroxaban involving novel intermediate

      
Application Number 16335506
Grant Number 11034683
Status In Force
Filing Date 2017-12-21
First Publication Date 2020-01-16
Grant Date 2021-06-15
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay G.
  • Das, Arijit
  • Raikar, Sanjay
  • Surve, Yashwant S.
  • Pandit, Bhushan S.

Abstract

The present invention relates to the novel key intermediate, 4-{4-[(5S)-(Aminomethyl)-2-oxo-1,3-oxazolidin-3-yl]-phenyl}-morpholin-3-one perchlorate, in the synthesis of rivaroxaban. The invention further relates to the crystalline form of novel intermediate, the process to prepare the novel intermediate and method of preparing rivaroxaban using this novel intermediate. The invention provides an improved and efficient process for preparation of Rivaroxaban.

IPC Classes  ?

  • C07D 413/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings
  • C07D 413/10 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing aromatic rings

57.

Process for preparation and purification of vortioxetine hydrobromide

      
Application Number 16486315
Grant Number 10836730
Status In Force
Filing Date 2018-02-21
First Publication Date 2020-01-09
Grant Date 2020-11-17
Owner UNICHEM LABORATORIES LTD. (India)
Inventor
  • Sathe, Dhananjay G.
  • Das, Arijit
  • Kulkarni, Vishal
  • Patil, Tushar
  • Patil, Yogesh
  • Nagawade, Prafulla

Abstract

The present invention is related to an improved process for the preparation and purification of crystalline Vortioxetine hydrobromide of Formula-I. The process according to present invention is operationally simple and suitable for industrial application which will avoid hazardous chemicals and eliminate column chromatography to get ICH quality of pharmaceutically acceptable active pharmaceutical ingredient having snow white appearance.

IPC Classes  ?

  • C07D 241/04 - Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
  • A61K 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin

58.

Pharmaceutical composition of apixaban

      
Application Number 16477661
Grant Number 11510909
Status In Force
Filing Date 2018-02-01
First Publication Date 2019-11-28
Grant Date 2022-11-29
Owner UNICHEM LABORATORIES LTD. (India)
Inventor
  • Sathe, Dhananjay
  • Pimple, Srikant V.
  • Maurya, Pravin Kumar
  • Tattu, Dhananjay Pramod
  • Sathe, Sr., Milind Vinayak

Abstract

90 particle size of more than 100 microns, preferably between 300 and 1000 microns, and more preferably between 350 and 800 microns, and further comprising one or more pharmaceutically acceptable excipients. The present disclosure further provides a process for preparation of a pharmaceutical composition comprising apixaban by wet granulation.

IPC Classes  ?

  • A61K 31/437 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a five-membered ring having nitrogen as a ring hetero atom, e.g. indolizine, beta-carboline
  • A61K 31/4545 - Non-condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems containing a six-membered ring with nitrogen as a ring hetero atom, e.g. pipamperone, anabasine
  • A61K 9/20 - Pills, lozenges or tablets
  • A61K 9/28 - DrageesCoated pills or tablets

59.

AN ENZYMATIC PROCESS FOR THE PREPARATION OF (R)-SITAGLIPTIN

      
Application Number IB2019053257
Publication Number 2019/207443
Status In Force
Filing Date 2019-04-19
Publication Date 2019-10-31
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Kumar, Sudeep
  • Katdare, Mamata
  • N., Ramesha

Abstract

The present invention relates to an enzymatic process for the preparation of (R)- Sitagliptin. The process involves reductive amination of Pro-Sitagliptin to (R)- Sitagliptin using novel transaminase enzymes. The invention also relates to the Nucleotide sequences encoding novel transaminase enzymes and process to prepare transaminase enzymes.

IPC Classes  ?

  • C12N 9/00 - Enzymes, e.g. ligases (6.)ProenzymesCompositions thereofProcesses for preparing, activating, inhibiting, separating, or purifying enzymes
  • C07D 487/04 - Ortho-condensed systems

60.

NUCLEOTIDE SEQUENCES ENCODING 3-QUINUCLIDINONE REDUCTASE AND GLUCOSE DEHYDROGENASE AND SOLUBLE EXPRESSION THEREOF

      
Application Number IB2018060096
Publication Number 2019/123166
Status In Force
Filing Date 2018-12-14
Publication Date 2019-06-27
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Bachate, Sachin Prabhakar
  • Kaneri, Amol Arvind
  • Kuncolienkar, Purshottam Sudin Sinai
  • Chougule, Rahul Subhash
  • Anand, Nilabh
  • D’souza, Conchita
  • Katdare, Mamata
  • Kumar, Sudeep
  • Sathe, Dhananjay

Abstract

The present invention relates to nucleotide sequence of SEQ ID 1 and SEQ ID 2 encoding recombinant 3-Quinuclidinone reductase and Glucose Dehydrogenase respectively. The invention further relates to the clone comprising the said nucleotide sequences and process to prepare 3-Quinuclidinone reductase and Glucose Dehydrogenase having amino acid sequence of SEQ ID 3 and SEQ ID 4, respectively.

IPC Classes  ?

  • C12N 9/02 - Oxidoreductases (1.), e.g. luciferase

61.

PROCESS FOR THE PREPARATION OF OPICAPONE AND INTERMEDIATES THEREOF

      
Application Number IB2018059598
Publication Number 2019/123066
Status In Force
Filing Date 2018-12-04
Publication Date 2019-06-27
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay G.
  • Das, Arijit
  • Gawas, Dnyaneshwar V.
  • Chowkekar, Sanjay Bhaskar
  • Jagtap, Ravindra Subhash

Abstract

The present invention i s relates to a process for the preparation of opicapone and a process to prepare intermediates to be used therein.

IPC Classes  ?

  • C07D 413/04 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring- member bond

62.

PHARMACEUTICAL COMPOSITIONS OF APREMILAST

      
Document Number 03077768
Status Pending
Filing Date 2018-10-01
Open to Public Date 2019-04-18
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Pimple, Srikant
  • Gupta, Pradeep Kumar
  • Jadhav, Vishal

Abstract

The present invention relates to a disintegrant free pharmaceutical composition comprising apremilast or pharmaceutically acceptable salts thereof and one or more pharmaceutically acceptable excipients. Particularly the present invention relates to disintegrant free immediate release dosage form comprising apremilast or pharmaceutically acceptable salts thereof and one or more pharmaceutically acceptable excipients. It further relates to process of preparing such composition and its use in psoriatic arthritis and psoriasis.

IPC Classes  ?

63.

PHARMACEUTICAL COMPOSITIONS OF APREMILAST

      
Application Number IB2018057603
Publication Number 2019/073331
Status In Force
Filing Date 2018-10-01
Publication Date 2019-04-18
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Pimple, Srikant
  • Gupta, Pradeep Kumar
  • Jadhav, Vishal

Abstract

The present invention relates to a disintegrant free pharmaceutical composition comprising apremilast or pharmaceutically acceptable salts thereof and one or more pharmaceutically acceptable excipients. Particularly the present invention relates to disintegrant free immediate release dosage form comprising apremilast or pharmaceutically acceptable salts thereof and one or more pharmaceutically acceptable excipients. It further relates to process of preparing such composition and its use in psoriatic arthritis and psoriasis.

IPC Classes  ?

64.

HIGHLY EFFICIENT ENZYMATIC PROCESS TO PRODUCE (R)-3-QUINUCLIDINOL

      
Application Number IB2018056767
Publication Number 2019/053560
Status In Force
Filing Date 2018-09-05
Publication Date 2019-03-21
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • D'Souza, Conchita
  • Ashok, Maitreyi
  • Udipi, Minal P.
  • Das, Arijit
  • Katdare, Mamata
  • Kumar, Sudeep
  • Sathe, Dhananjay

Abstract

Rhodotorula rubraRhodotorula rubra. The invention also relates to enzymatically produced (R)-3-quinuclidinol wherein the substrate loading capacity of the enzyme is not less than 100g/L.

IPC Classes  ?

  • C12N 9/00 - Enzymes, e.g. ligases (6.)ProenzymesCompositions thereofProcesses for preparing, activating, inhibiting, separating, or purifying enzymes

65.

PHARMACEUTICAL COMPOSITIONS COMPRISING CINACALCET HYDROCHLORIDE AND ONE OR MORE BINDERS

      
Application Number IB2018056084
Publication Number 2019/034981
Status In Force
Filing Date 2018-08-13
Publication Date 2019-02-21
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Pimple, Srikant
  • Maurya, Pravin Kumar

Abstract

The invention relates to a pharmaceutical composition comprising cinacalcet or pharmaceutically acceptable salts thereof and one or more pharmaceutically acceptable excipient. The invention also relates to the pharmaceutical composition comprising cinacalcet or pharmaceutically acceptable salts thereof having a particle size distribution D 90 equal to or less than 20 µm, D 50 equal to or less than 10 µm, and D equal to or less than 5 µm and one or more and binders in an amount of 0.9% w/w or less, relative to the total weight of composition, wherein the composition is not free of binder and that the total amount of binder does not exceed 0.9%w/w relative to the total weight of the composition.

IPC Classes  ?

  • A61K 31/00 - Medicinal preparations containing organic active ingredients
  • A61K 31/135 - Amines, e.g. amantadine having aromatic rings, e.g. methadone
  • A61K 31/137 - Arylalkylamines, e.g. amphetamine, epinephrine, salbutamol, ephedrine

66.

NOVEL PROCESS TO PREPARE N-[2-[(1S)-1-(3-ETHOXY-4-METHOXYPHENYL)-2-(METHYLSULPHONYL) ETHYL]-1, 3-DIOXO-2,3-DIHYDRO-1H-ISOINDOL-4-YL]ACETAMIDE

      
Application Number IB2018052924
Publication Number 2018/203192
Status In Force
Filing Date 2018-04-27
Publication Date 2018-11-08
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay G
  • Das, Arijit
  • Patel, Bhavesh B
  • Patil, Dipak Subhash
  • Matale, Ashok Govind
  • Kshirsagar, Eknath Kamalakar

Abstract

An alternative and improved process for the preparation of Apremilast (Formula I) and Apremilast form B or a pharmaceutically acceptable salt thereof is provided. The novel process includes hydrogenation in acetone, Cyclization and acetylation followed by condensation in methyl isobutyl ketone (MIBK) and acetic acid mixture in specific volume ratios.

IPC Classes  ?

  • C07D 209/48 - Iso-indolesHydrogenated iso-indoles with oxygen atoms in positions 1 and 3, e.g. phthalimide
  • C07C 317/28 - SulfonesSulfoxides having sulfone or sulfoxide groups and nitrogen atoms, not being part of nitro or nitroso groups, bound to the same carbon skeleton with sulfone or sulfoxide groups bound to acyclic carbon atoms of the carbon skeleton

67.

AN IMPROVED PROCESS FOR PREPARATION AND PURIFICATION OF VORTIOXETINE HYDROBROMIDE

      
Application Number IB2018051054
Publication Number 2018/154451
Status In Force
Filing Date 2018-02-21
Publication Date 2018-08-30
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay D
  • Das, Arijit
  • Kulkarni, Vishal
  • Patil, Tushar
  • Patil, Yogesh
  • Nagawade, Prafulla

Abstract

The present invention is related to an improved process for the preparation and purification of crystalline polymorph of Vortioxetine hydrobromide of Formula-I and Vortioxetine hydrochloride of Formula-Ia. The process according to present invention is operationally simple and suitable for industrial application which will avoid hazardous chemicals and eliminate column chromatography to get ICH quality of pharmaceutically acceptable active pharmaceutical ingredient having snow white appearance.

IPC Classes  ?

  • A61K 31/495 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two nitrogen atoms as the only ring hetero atoms, e.g. piperazine
  • C07D 241/04 - Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
  • C07D 295/096 - Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms with the ring nitrogen atoms and the oxygen or sulfur atoms separated by carbocyclic rings or by carbon chains interrupted by carbocyclic rings

68.

PHARMACEUTICAL COMPOSITION OF APIXABAN

      
Application Number IB2018050627
Publication Number 2018/150286
Status In Force
Filing Date 2018-02-01
Publication Date 2018-08-23
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Pimple, Srikant V
  • Maurya, Pravin Kumar
  • Tattu, Dhananjay Pramod
  • Sathe, Milind Vinayak

Abstract

The present disclosure relates to a stable, reproducible and bioequivalent apixaban compositions, wherein the composition comprising apixaban having a D90 particle size of more than 100 microns, preferably between 300 and 1000 microns, and more preferably between 350 and 800 microns, and further comprising one or more pharmaceutically acceptable excipients. The present disclosure further provides a process for preparation of a pharmaceutical composition comprising apixaban by wet granulation.

IPC Classes  ?

  • A61K 31/4545 - Non-condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems containing a six-membered ring with nitrogen as a ring hetero atom, e.g. pipamperone, anabasine
  • A61K 9/00 - Medicinal preparations characterised by special physical form
  • A61K 9/20 - Pills, lozenges or tablets
  • A61K 9/26 - Discrete particles in supporting matrix
  • A61K 9/28 - DrageesCoated pills or tablets
  • A61K 9/48 - Preparations in capsules, e.g. of gelatin, of chocolate

69.

BIOEQUIVALENT PHARMACEUTICAL COMPOSITION OF VORTIOXETINE HYDROBROMIDE

      
Application Number IB2018050918
Publication Number 2018/150344
Status In Force
Filing Date 2018-02-15
Publication Date 2018-08-23
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay
  • Padhi, Bijay Kumar
  • Maurya, Pravin Kumar

Abstract

The invention relates to vortioxetine hydrobromide having particle size distribution of D98 100-200μ, D50 35-90μ and D5 7-30μ as well as to a stable, reproducible and bioequivalent pharmaceutical composition comprising vortioxetine hydrobromide having particle size distribution of D98 100-200μ, D50 35-90μ and D5 7-30μ and one or more pharmaceutically acceptable excipient. It is produced by wet granulation techniques.

IPC Classes  ?

  • A61K 9/20 - Pills, lozenges or tablets
  • A61K 31/495 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two nitrogen atoms as the only ring hetero atoms, e.g. piperazine
  • A61K 31/4418 - Non-condensed pyridinesHydrogenated derivatives thereof having a carbocyclic ring directly attached to the heterocyclic ring, e.g. cyproheptadine
  • C07D 211/20 - Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon or substituted hydrocarbon radicals directly attached to ring carbon atoms with substituted hydrocarbon radicals attached to ring carbon atoms with hydrocarbon radicals, substituted by singly bound oxygen or sulfur atoms
  • C07D 241/04 - Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
  • C07D 295/08 - Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms
  • C07D 295/033 - Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements containing only one hetero ring with the ring nitrogen atoms directly attached to carbocyclic rings
  • C07D 295/096 - Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms with the ring nitrogen atoms and the oxygen or sulfur atoms separated by carbocyclic rings or by carbon chains interrupted by carbocyclic rings

70.

AN IMPROVED PROCESS FOR THE PREPARATION OF RIVAROXABAN INVOLVING NOVEL INTERMEDIATE

      
Application Number IB2017058245
Publication Number 2018/127762
Status In Force
Filing Date 2017-12-21
Publication Date 2018-07-12
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay G.
  • Das, Arijit
  • Raikar, Sanjay
  • Surve, Yashwant S.
  • Pandit, Bhushan S.

Abstract

The present invention relates to the novel key intermediate, 4-{4-[(5S)-(Aminomethyl)-2- oxo-l,3-oxazolidin-3-yl]-phenyl}-morpholin-3-one perchlorate, in the synthesis of rivaroxaban. The invention further relates to the crystalline form of novel intermediate, the process to prepare the novel intermediate and method of preparing rivaroxaban using this novel intermediate. The invention provides an improved and efficient process for preparation of Rivaroxaban.

IPC Classes  ?

  • A61K 31/422 - Oxazoles not condensed and containing further heterocyclic rings
  • A61K 31/5355 - Non-condensed oxazines containing further heterocyclic rings
  • A61K 31/5377 - 1,4-Oxazines, e.g. morpholine not condensed and containing further heterocyclic rings, e.g. timolol
  • A61P 7/02 - Antithrombotic agentsAnticoagulantsPlatelet aggregation inhibitors
  • C07D 413/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings

71.

Process for the preparation of (3R,4R)-(1-benzyl-4-methylpiperidin-3-yl)-methylamine

      
Application Number 15868331
Grant Number 10829450
Status In Force
Filing Date 2018-01-11
First Publication Date 2018-05-17
Grant Date 2020-11-10
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay G.
  • Das, Arijit
  • Patil, Yogesh Subhash
  • Bonde, Nilesh L.
  • Kekan, Ankush Sampat

Abstract

The present disclosure is related to an improved and efficient process for preparation of (3R,4R)-(1-benzyl-4-methylpiperidin-3-yl)-methylamine which comprises: (a) N-acylation of 3-Amino-4-methyl pyridine; (b) Quarternization of 3-Acetylamino-4-methyl pyridine using benzyl halide; (c) Partial reduction of quarternized 3-Acetylamino-4-methyl pyridine by Sodium borohydride in Methanol or water; (d) Hydrolysis of partially reduced product to 1-Benzyl-4-methylpiperidin-3-one in presence of acid; (e) Reductive amination of 1-Benzyl-4-methylpiperidin-3-one using Methanolic methylamine in presence of Titanium(IV) isopropoxide in Methanol; (f) Resolution of 1-Benzyl-4-methylpiperidin-3-yl)-methylamine using Ditoluoyl (L) tartaric acid to get (3R,4R)-(1-benzyl-4-methylpiperidin-3-yl)-methylamine. The disclosure is also related to novel intermediates: wherein R, R′ and X are as described in the specification.

IPC Classes  ?

  • C07D 211/02 - Preparation by ring-closure or hydrogenation
  • C07D 213/74 - Amino or imino radicals substituted by hydrocarbon or substituted hydrocarbon radicals
  • C07D 211/56 - Nitrogen atoms
  • C07D 211/72 - Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, directly attached to ring carbon atoms
  • C07D 213/75 - Amino or imino radicals, acylated by carboxylic or carbonic acids, or by sulfur or nitrogen analogues thereof, e.g. carbamates
  • C07D 211/98 - Nitrogen atom

72.

Process for the preparation of Apixaban and intermediates thereof

      
Application Number 15696758
Grant Number 10118924
Status In Force
Filing Date 2017-09-06
First Publication Date 2018-04-12
Grant Date 2018-11-06
Owner Unichem Laboratories Limited (India)
Inventor
  • Sathe, Dhananjay G.
  • Das, Arijit
  • Surve, Yashwant
  • Ahire, Ramdas N.

Abstract

The present invention refers to novel process for the preparation of Apixaban. Further, the invention also related to a process for the preparation of intermediate of Apixaban from very basic and cheap row material i.e. Aniline which is widely commercially available. The present invention provides process for preparation of Apixaban using a different sequence of synthetic steps and does not involve use of Ullmann reaction.

IPC Classes  ?

73.

AN IMPROVED PROCESS FOR THE PREPARATION OF LACOSAMIDE

      
Application Number IB2017053448
Publication Number 2018/060781
Status In Force
Filing Date 2017-06-12
Publication Date 2018-04-05
Owner UNICHEM LABORATORIES LTD (India)
Inventor
  • Sathe, Dhananjay D
  • Das, Arijit
  • Raikar, Sanjay
  • Bhagwatkar, Rahul
  • Ahire, Ramdas

Abstract

The present invention relates to an improved process for the synthesis of (R)- Lacosamide in which free base of O-methyl-N-benzyl-D-Serinamide is not isolated before acylation. The process avoids the use of column chromatography and chiral resolution for the preparation of different stages of Lacosamide.

IPC Classes  ?

  • C07C 237/00 - Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups

74.

Process for the preparation of Apixaban and intermediates thereof

      
Application Number 15696853
Grant Number 10208036
Status In Force
Filing Date 2017-09-06
First Publication Date 2017-12-21
Grant Date 2019-02-19
Owner Unichem Laboratories Limited (India)
Inventor
  • Sathe, Dhananjay G.
  • Das, Arijit
  • Surve, Yashwant
  • Ahire, Ramdas N.

Abstract

The present invention refers to novel process for the preparation of Apixaban. Further, the invention also related to a process for the preparation of intermediate of Apixaban from very basic and cheap row material i.e. Aniline which is widely commercially available. The present invention provides process for preparation of Apixaban using a different sequence of synthetic steps and does not involve use of Ullmann reaction.

IPC Classes  ?

75.

RESINATES OF PHARAMCEUTICALLY ACCEPTABLE SALTS OF TOFACITINIB SUCH AS TOFACITINIB CITRATE, FOR TASTE MASKING

      
Application Number IB2016055491
Publication Number 2017/153822
Status In Force
Filing Date 2016-09-15
Publication Date 2017-09-14
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Milind Vinayak
  • Phaldesai, Saiesh Purushottam
  • Pimple, Srikant V

Abstract

The present invention relates to resinates of pharmaceutically acceptable salts of Tofacitinib such as Tofacitinib Citrate, fast disintegrating and or quick release pharmaceutical compositions comprising the said resinates and process for the preparation of resinates and compositions. The resin used to prepare the resinate is selected from copolymers of methacrylic acid and divinylbenzene, cross linked polymer of methacrylic acid and divinylbenzene, sulphonated copolymers of styrene and divinylbenzene. Ion exchange resin is contacted with the solution of Tofacitinib citrate under controlled pH in order to form the resinate. The resinate has versatile use in making of pharmaceutical preparations. Few such pharmaceutical preparations are Tablets, capsules, dry syrups, suspensions, lozenges, films.

IPC Classes  ?

76.

RESINATES OF TOFACITINIB FOR TASTE MASKING

      
Application Number IB2016055490
Publication Number 2017/153821
Status In Force
Filing Date 2016-09-15
Publication Date 2017-09-14
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Milind Vinayak
  • Phaldesai, Saiesh Purushottam
  • Pimple, Srikant V

Abstract

The present invention relates to resinates of Tofacitinib. The invention also relates to taste masked, stable and readily dispersible resinates of Tofacitinib, rapidly disintegrating and or quick release taste masked pharmaceutical compositions comprising the said resinates and process for the preparation of resinates and compositions. In order to form the resinate, the resin is selected from copolymers of methacrylic acid and divinylbenzene, cross linked polymer of methacrylic acid and divinylbenzene, sulphonated copolymers of styrene and divinylbenzene. In order to form the resinate, Ion exchange resin is contacted with the solution of Tofacitinib prepared in nonaromatic solvent. The resinate is useful to formulate different pharmaceutical dosage forms such as Tablets, Capsule, drysyrups.

IPC Classes  ?

77.

Process of preparing potassium salt of Azilsartan medoxomil

      
Application Number 15314144
Grant Number 09902717
Status In Force
Filing Date 2016-03-21
First Publication Date 2017-07-13
Grant Date 2018-02-27
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay G.
  • Gawas, Dnyaneshwar V.
  • Metkar, Sashikant D.

Abstract

The present invention relates to a process for the preparation of Azilsartan Medoxomil Potassium. The invention further relates to novel highly crystalline polymorph of Azilsartan Medoxomil Potassium and composition comprising it. The invention provides thermostable highly crystalline polymorph of Azilsartan Medoxomil Potassium and process to produce a composition comprising the novel highly crystalline polymorph of Azilsartan Medoxomil Potassium.

IPC Classes  ?

  • C07D 413/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings

78.

TOFACITINIB ORALLY DISINTEGRATING TABLETS

      
Application Number IB2016053768
Publication Number 2017/017542
Status In Force
Filing Date 2016-06-24
Publication Date 2017-02-02
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Gupta, Saurabh
  • Phaldesai, Saiesh P.
  • Kumar, Nsk. Senthil
  • Sathe, Milind Vinayak

Abstract

The present invention relates to Orally Disintegrating Tablets (ODT) of Tofacitinib and its pharmaceutically acceptable salts and the process to produce the ODT. The invention further relates to ODTs comprising Tofacitinib and its pharmaceutically acceptable salts, at least one sweetening agent, at least one disintegrant and optionally other excipients. The weight of the Orally Disintegrating tablets is 200 mg or less. The invention further relates to Orally Disintegrating Tablets of Tofacitinib Citrate.

IPC Classes  ?

  • A61K 9/14 - Particulate form, e.g. powders
  • A61K 9/20 - Pills, lozenges or tablets
  • A61K 31/519 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
  • A61K 47/38 - CelluloseDerivatives thereof
  • C07D 487/04 - Ortho-condensed systems

79.

Process for the preparation of apixaban and intermediates thereof

      
Application Number 15282373
Grant Number 09908881
Status In Force
Filing Date 2016-09-30
First Publication Date 2017-01-19
Grant Date 2018-03-06
Owner Unichem Laboratories Limited (India)
Inventor
  • Sathe, Dhananjay G
  • Das, Arijit
  • Surve, Yashwant
  • Ahire, Ramdas N.

Abstract

The present invention refers to novel process for the preparation of Apixaban. Further, the invention also related to a process for the preparation of intermediate of Apixaban from very basic and cheap row material i.e. Aniline which is widely commercially available. The present invention provides process for preparation of Apixaban using a different sequence of synthetic steps and does not involve use of Ullmann reaction.

IPC Classes  ?

80.

PROCESS OF PREPARING POTASSIUM SALT OF AZILSARTAN MEDOXOMIL

      
Application Number IB2016051566
Publication Number 2016/151466
Status In Force
Filing Date 2016-03-21
Publication Date 2016-09-29
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay G.
  • Gawas, Dnyaneshwar V.
  • Metkar, Sashikant D.

Abstract

The present invention relates to a process for the preparation of Azilsartan Medoxomil Potassium. The invention further relates to novel highly crystalline polymorph of Azilsartan Medoxomil Potassium and composition comprising it. The invention provides thermostable highly crystalline polymorph of Azilsartan Medoxomil Potassium and process to produce a composition comprising the novel highly crystalline polymorph of Azilsartan Medoxomil Potassium.

IPC Classes  ?

  • C07D 413/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings
  • A61K 31/00 - Medicinal preparations containing organic active ingredients
  • A61K 31/395 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
  • A61K 31/41 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which is nitrogen, e.g. tetrazole
  • A61K 31/4245 - Oxadiazoles
  • C07D 413/00 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms

81.

NOVEL PROCESS FOR THE PREPARATION OF RANOLAZINE

      
Application Number IB2016051228
Publication Number 2016/142819
Status In Force
Filing Date 2016-03-04
Publication Date 2016-09-15
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay G.
  • Gawas, Dnyaneshwar V.
  • Chowkekar, Sanjay Bhaskar
  • Mali, Jotirling Ramling

Abstract

The present invention relates to novel processes for the preparation of Ranolazine (I) and its acid addition salts and the novel process for the preparation of compound of formula (7).

IPC Classes  ?

  • C07D 295/15 - Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals with the ring nitrogen atoms and the carbon atoms with three bonds to hetero atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings to an acyclic saturated chain
  • C07D 303/23 - Oxiranylmethyl ethers of compounds having one hydroxy group bound to a six-membered aromatic ring, the oxiranylmethyl radical not being further substituted, i.e.

82.

AN IMPROVED PROCESS FOR THE PREPARATION OF PHARMACOPOEIAL GRADE INTERFERON ALPHA 2B

      
Application Number IB2015051009
Publication Number 2016/079598
Status In Force
Filing Date 2015-02-11
Publication Date 2016-05-26
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sharma, Sanjeev Kumar
  • Kumar, Surya Bhushan
  • Parab, Rohan
  • Kankonkar, Mohanish
  • D'Souza, Conchita
  • Bachate, Sachin
  • Sharma, Ratnesh Kumar

Abstract

The present invention relates to a simple and scalable process for the production of pharmacopoeial grade Interferon alpha 2b by fed-batch fermentation followed by purification using chromatography techniques. The invention also relates to the recombinant expression of interferon alpha 2b in soluble form by fermentation to obtain high yields. The process involves clarification and chromatographic steps for the purification of Interferon alpha 2b.

IPC Classes  ?

83.

Process for the preparation of (3R,4R)-(1-benzyl-4-methylpiperidin-3-yl)-methylamine

      
Application Number 14891028
Grant Number 09951012
Status In Force
Filing Date 2014-12-02
First Publication Date 2016-04-14
Grant Date 2018-04-24
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay G.
  • Das, Arijit
  • Patil, Yogesh Subhash
  • Bonde, Nilesh L.
  • Kekan, Ankush Sampat

Abstract

(a) N-acylation of 3-Amino-4-methyl pyridine; (b) Quarternization of 3-Acetylamino-4-methyl pyridine using benzyl halide; (c) Partial reduction of quarternized 3-Acetylamino-4-methyl pyridine by Sodium borohydride in Methanol or water; (d) Hydrolysis of partially reduced product to 1-Benzyl-4-methylpiperidin-3-one in presence of acid; (e) Reductive amination of 1-Benzyl-4-methylpiperidin-3-one using Methanolic methylamine in presence of Titanium(IV) isopropoxide in Methanol; (f) Resolution of 1-Benzyl-4-methylpiperidin-3-yl)-methylamine using Ditoluoyl (L) tartaric acid to get (3R,4R)-(1-benzyl-4-methylpiperidin-3-yl)-methylamine. The invention is also related to novel intermediates: wherein R, R′ and X are as described in the specification.

IPC Classes  ?

  • C07D 211/02 - Preparation by ring-closure or hydrogenation
  • C07D 211/56 - Nitrogen atoms
  • C07D 213/75 - Amino or imino radicals, acylated by carboxylic or carbonic acids, or by sulfur or nitrogen analogues thereof, e.g. carbamates
  • C07D 213/74 - Amino or imino radicals substituted by hydrocarbon or substituted hydrocarbon radicals
  • C07D 211/72 - Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, directly attached to ring carbon atoms

84.

AN IMPROVED PROCESS FOR THE PREPARATION OF APIXABAN AND INTERMEDIATES THEREOF

      
Application Number IB2015056630
Publication Number 2016/035007
Status In Force
Filing Date 2015-09-01
Publication Date 2016-03-10
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay D
  • Das, Arijit
  • Surve, Yashwant
  • Ahire, Ramdas N.
  • Khandekar, Amit C.

Abstract

The present invention refers to novel process for the preparation of Apixaban. Further, the invention also related to a process for the preparation of intermediate of Apixaban from very basic and cheap row material i.e. Aniline which is widely commercially available. The present invention provides process for preparation of Apixaban using a different sequence of synthetic steps and does not involve use of Ullmann reaction.

IPC Classes  ?

85.

AN IMPROVED PROCESS FOR THE PREPARATION OF (3R,4R)-(1-BENZYL-4-METHYLPIPERIDIN-3-YL)-METHYLAMINE

      
Application Number IB2014066510
Publication Number 2015/087201
Status In Force
Filing Date 2014-12-02
Publication Date 2015-06-18
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Sathe, Dhananjay. G.
  • Das, Arijit
  • Patil, Yogesh Subhash
  • Bonde, Nilesh L.
  • Kekan, Ankush Sampat

Abstract

The present invention is related to an improved and efficient process for preparation of (3R,4R)-(1-benzyl-4-methylpiperidin-3-yl)-methylamine which comprises: (a) N-acylation of 3-Amino-4-methyl pyridine; (b) Quarternization of 3-Acetylamino-4- methyl pyridine using benzyl halide; (c) Partial reduction of quarternized 3-Acetylamino- 4-methyl pyridine by Sodium borohydride in Methanol or water; (d) Hydrolysis of partially reduced product to 1-Benzyl-4-methylpiperidin-3-one in presence of acid; (e) Reductive animation of 1-Benzyl-4-methylpiperidin-3-one using Methanolic methylamine in presence of Titanium(IV) isopropoxide in Methanol; (f) Resolution of 1-Benzyl-4- methylpiperidin-3-yl)-methylamine using Ditoluoyl (L) tartaric acid to get (3R,4R)-(1- benzyl-4-methylpiperidin-3-yl)-methylamine. The invention is also related to novel intermediates.

IPC Classes  ?

  • C07D 211/56 - Nitrogen atoms
  • C07D 213/74 - Amino or imino radicals substituted by hydrocarbon or substituted hydrocarbon radicals

86.

RECOMBINANT LECTIN AND METHOD OF PREPARING THEREOF

      
Application Number IN2010000056
Publication Number 2014/203261
Status In Force
Filing Date 2010-02-02
Publication Date 2014-12-24
Owner
  • UNICHEM LABORATORIES LTD. (India)
  • KARNATAK UNIVERSITY (India)
Inventor
  • Swamy, Bale Murugi
  • Inamdar, Shashikala Ramchandra
  • Venkat, Hemalatha
  • S., Radhika
  • Chachadi, Vishwanath Basavaraj
  • Nagre, Nagaraja Narayan
  • Gonchigar, Sathisha J.
  • Morye, Vinita
  • Ramadoss, Candalai Seshadri

Abstract

The present invention provides a method for preparing a recombinant lectin expressed in a host cell such as E.coli or yeast, said method comprising the synthesis of a lectin gene based on amino acid sequence derived from the MALDI MS/MS of the Sclerotium rolfsii lectin (SEQ ID.1), a soil borne phytopathogenic fungus, and its cloning in the host cell.

IPC Classes  ?

  • C07K 14/37 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from fungi
  • C07K 14/375 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from fungi from Basidiomycetes

87.

CANCER CELL BINDING RECOMBINANT LECTINS WITH ANTITUMOR ACTIVITY AND METHOD OF PREPARATION

      
Application Number IN2009000306
Publication Number 2010/095143
Status In Force
Filing Date 2009-05-27
Publication Date 2010-08-26
Owner
  • UNICHEM LABORATORIES LTD (India)
  • KARNATAK UNIVERSITY (India)
Inventor
  • Swamy, Bale Murugi
  • Inamdar, Shashikala Ramchandra
  • Venkat, Hemalatha
  • Chachadi, Vishwanath Basavaraj
  • Nagre, Nagaraja Narayan
  • Ramadoss, Candadai Seshadri

Abstract

The present invention discloses genes for new variants in E.coli that are more close to the wild type lectin sequence but still differ in surface charges. This recombinant version (exemplified Rec-2 and Rec-3) are cancer cell binding with anti tumor activity show blood group specificity similar to the native lectin but retains the stability and the solubility properties.

IPC Classes  ?

  • C07K 14/37 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from fungi

88.

Antimicrobial derivatives of anacardic acid and process for preparing the same

      
Application Number 12438943
Grant Number 08338638
Status In Force
Filing Date 2007-08-24
First Publication Date 2010-01-21
Grant Date 2012-12-25
Owner Unichem Laboratories Ltd. (India)
Inventor
  • Achanath, Radha
  • Srinivas, Malladi
  • Ramadoss, Candadal Seshadri

Abstract

Derivatives of anacardic acid having antimicrobial properties and method for preparing said derivatives. The antimicrobial properties include bacteriostatic and bacteriocidal activity.

IPC Classes  ?

  • C07C 237/28 - Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atom of at least one of the carboxamide groups bound to a carbon atom of a non-condensed six-membered aromatic ring of the carbon skeleton
  • C07C 65/01 - Compounds having carboxyl groups bound to carbon atoms of six-membered aromatic rings and containing any of the groups OH, O-metal, —CHO, keto, ether, groups, groups, or groups containing hydroxy or O-metal groups
  • C07C 229/54 - Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton with amino and carboxyl groups bound to carbon atoms of the same non-condensed six-membered aromatic ring
  • A01N 37/18 - Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N, e.g. carboxylic acid amides or imidesThio-analogues thereof

89.

A NOVEL PROCESS FOR THE PREPARATION OF 2-HALO-4-AMINOQUINAZOLINES

      
Application Number IN2007000330
Publication Number 2008/084493
Status In Force
Filing Date 2007-08-06
Publication Date 2008-07-17
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Bhobe, Ajit, Madhukar
  • Damle, Subhash, Vishwanath
  • Adhvaryu, Rushi, Drupadbhai

Abstract

2-Halo-4-aminoquinazolines are produced by a one-step process involving intramolecular cyclization of appropriately substituted formamide derivatives in the presence of phosphorous oxyhalides. Exemplary of the process is the intramolecular cyclization of 3,4-dimethoxy-6-cyanoaniline-1-yl formamide in the presence of phosphorous oxychloride to 2-chloro-4-amino-6,7-dimethoxyquinazoline. These chemical compounds are utilized as intermediates in the preparation of some of the important antihypertensive agents e.g. 2-chloro-4-amino-6,7-dimethoxyquinazolines is used for the synthesis of alfuzosin hydrochloride.

IPC Classes  ?

90.

ANTIMICROBIAL DERIVATIVES OF ANACARDIC ACID AND PROCESS FOR PREPARING THE SAME

      
Application Number IN2007000386
Publication Number 2008/062436
Status In Force
Filing Date 2007-08-24
Publication Date 2008-05-29
Owner UNICHEM LABORATORIES LTD. (India)
Inventor
  • Achanath, Radha
  • Srinivas, Malladi
  • Ramadoss, Candadai Seshadri

Abstract

Derivatives of anacardic acid having antimicrobial properties and method for preparing said derivatives. The antimicrobial properties include bacteriostatic and bacteriocidal activity.

IPC Classes  ?

  • A61K 38/00 - Medicinal preparations containing peptides

91.

A PROCESS FOR THE PREPARATION OF A NOVEL CRYSTALLINE POLYMORPH OF ARIPIPRAZOLE

      
Application Number IN2007000023
Publication Number 2008/020453
Status In Force
Filing Date 2007-01-19
Publication Date 2008-02-21
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Bhobe, Ajit
  • Damle, Subhash
  • Panchal, Dharmesh

Abstract

The present invention provides a novel crystalline polymorph of the psychotropic drug aripiprazole and a process for its preparation.

IPC Classes  ?

  • A61K 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
  • C07D 403/12 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 403/00 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group

92.

IMPROVED MANUFACTURING PROCEDURE FOR THE PREPARATION OF POLYMORPHIC FORM II OF CIS-(1S)-N-METHYL-4-(3,4-DICHLOROPHENYL)-1,2,3,4-TETRAHYDRO-1-NAPTHLENEAMINE HYDROCHLORIDE (SERTRALINE HYDROCHLORIDE)

      
Application Number IN2006000366
Publication Number 2007/119247
Status In Force
Filing Date 2006-09-12
Publication Date 2007-10-25
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Ramakrishnan, Arul
  • Ajay, Singh, Rawat
  • Manoj, Balu, Wagh
  • Ajay, Dayalji, Chauhan
  • Payal, Arvind, Chandan

Abstract

The present invention relates to the improved, scalable and efficient manufacturing procedure for the preparation of the antidepressant Cis-(1S)-N-Methyl-4-(3,4-Dichlorophenyl)-1,2,3,4-tetrahydro-1-napthaleneamine hydro chloride, Sertraline Hydrochloride polymorphic form II. The present invention further relates to the improved and modified procedures for preparing, separating and isolating the key intermediates involved in the preparationof Sertraline Hydrochloride polymorphic form II. The present invention also further relates to the use of novel reagents or a combination thereof and new methodologies to prepare some o'f the key intermediates involved in the preparation of Polymorphic Form II of Sertraline Hydrochloride.

IPC Classes  ?

  • C07C 209/26 - Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds by reduction with hydrogen
  • C07C 209/28 - Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds by reduction with other reducing agents
  • C07C 209/88 - Separation of optical isomers
  • C07C 211/42 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings of an unsaturated carbon skeleton containing condensed ring systems with six-membered aromatic rings being part of the condensed ring systems

93.

AN IMPROVED PROCESS FOR THE MANUFACTURE OF LOSARTAN POTASSIUM

      
Application Number IN2006000365
Publication Number 2007/119246
Status In Force
Filing Date 2006-09-12
Publication Date 2007-10-25
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Ramakrishnan, Arul
  • Bhushan, Vasant, Dabholkar
  • Dinesh, Deore, B.
  • Kundan, Singh, Shekhawat

Abstract

The present invention relates to an improved process for the manufacture of Losartan potassium. The process comprises of condensation of 2-butyl-4-chloro-5-formyl imidazole with 2-cyano-4-bromomethyl biphenyl in a biphasic solvent system under phase transfer catalysis followed by insitu reduction using sodium borohydride. The obtained product is converted to Losartan by treating with sodium azide and an amine salt. Losartan is then converted to its potassium salt by treating it with potassium hydroxide in alcohol.

IPC Classes  ?

  • C07D 403/10 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing aromatic rings
  • C07D 233/68 - Halogen atoms
  • C07D 257/04 - Five-membered rings

94.

PROCESS FOR THE PREPARATION OF 6-(4-CHLOROPHENYL)-2,2-DIMETHYL-7-PHENYL-2, 3-DIHYDRO-1H-PYRROLIZIN-5-YL ACETIC ACID AND ITS INTERMEDIATES

      
Application Number IN2006000363
Publication Number 2007/108006
Status In Force
Filing Date 2006-09-12
Publication Date 2007-09-27
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Ramakrishnan, Arul
  • Amit, C., Khandekar
  • Bhima, Kale, Y.

Abstract

The present invention relates to a process for the preparation of 6-(4-chlorophenyl)-2,2-dimethyl-7-phenyl-2, 3-dihydro-1H-pyrrolizin-5-yl acetic acid, in which the key intermediate, 5-Benzyl-3,3-dimethyl-3,4-dihydro-2H-pyrrole is obtained by the hydrogenation of 2,2-dimethyl-4-oxo-5-phenyl-nitropentane. The invention also relates to the preparation of the intermediates occurring in the above process.

IPC Classes  ?

  • C07D 487/04 - Ortho-condensed systems
  • C07C 205/45 - Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by at least one doubly-bound oxygen atom, not being part of a —CHO group
  • C07D 207/20 - Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
  • C07C 49/213 - Unsaturated compounds containing keto groups bound to acyclic carbon atoms containing six-membered aromatic rings
  • C07C 49/203 - Unsaturated compounds containing keto groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation

95.

A PROCESS FOR THE PREPARATION OF EZETIMIBE VIA A NOVEL INTERMEDIATE

      
Application Number IN2006000364
Publication Number 2007/108007
Status In Force
Filing Date 2006-09-12
Publication Date 2007-09-27
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Ramakrishnan, Arul
  • Shrigadi, Nilesh, Balkrishna
  • Prabhavalkar, Tirtha, Suresh
  • Thorat, Amol, Narayan

Abstract

The present invention relates to a process for the preparation of Ezetimibe via a novel intermediate. Trans-3(R)-(3-⏧2-oxo-4(S)-(4-benzyloxyphenyl)-1-(4-fluorophenyl)-azetidinyl]propanoic acid is converted to trans-N-methoxy-N-methyl-3(R)-3-⏧2-oxo-4(S)-(4-benzyloxyphenyl)-1-(4-fluorophenyl)-azetidinyl]propanamide and the resultant intermediate is subjected to Grignard reaction to obtain trans-1-(4-fluorophenyl)-3(R)-⏧3-oxo-3-(4-fluorophenyl)propyl]-4(S)-(4-benzyloxyphenyl)-2-azetidinone. Reduction of trans-1-(4-JGiuorophenyl)-3(R)-⏧3-oxo-3-(4-fluorophenyl) propyl]-4(S)-(4-benzyloxyphenyl)-2-azetidinone, followed by debenzylation provides Ezetimibe. The invention also relates to the preparation of the intermediate occurring in the above process.

IPC Classes  ?

  • C07D 205/08 - Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with one oxygen atom directly attached in position 2, e.g. beta-lactams

96.

A NOVEL PROCESS FOR PREPARATION OF VENLAFAXINE HYDROCHLORIDE AND ITS INTERMEDIATES

      
Application Number IN2006000361
Publication Number 2007/094008
Status In Force
Filing Date 2006-09-12
Publication Date 2007-08-23
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Ramakrishnan, Arul
  • Subhash, V., Damle
  • Ashwini, Kumar, Gupta
  • Rushikesh, V., Kadu

Abstract

A process for the preparation of 1-cyano-⏧(4-methoxyphenyl)methyl] cyclohexanol by reacting cyclohexanone with the carbanion of 4-methoxyphenyl acetonitrile in the presence of polyethylene glycol-400 (PEG-400) or Aliquate-336, as a phase transfer catalyst (PTC). The present invention also relates to an novel process for the preparation of 1-⏧2-amino-1-(4-methoxyphenyl)ethyl]cyclohexanol, using borane-dimethyl sulphide complex (BDMS) or AlCl3-NaBH4, in refluxing tetrahydrofuran. 1-⏧2-Amino-1-(4-methoxyphenyl)ethyl]cyclohexanol thus obtained was subjected to N,N-dimethylation using formic acid-formaldehyde in boiling 1,4-dioxane: water mixture to obtain 1-⏧2-(dimethylamino)-1-(4-methoxyphenyl)ethyl] cyclohexanol in high purity, which was treated with isopropanol saturated with HCl gas to get venlafaxine hydrochloride in high purity and high yield.

IPC Classes  ?

  • C07C 253/30 - Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups
  • C07C 255/37 - Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms having cyano groups bound to acyclic carbon atoms of a carbon skeleton containing at least one six-membered aromatic ring the carbon skeleton being further substituted by etherified hydroxy groups
  • C07C 209/28 - Preparation of compounds containing amino groups bound to a carbon skeleton by reductive alkylation of ammonia, amines or compounds having groups reducible to amino groups, with carbonyl compounds by reduction with other reducing agents
  • C07C 211/27 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms of an unsaturated carbon skeleton containing at least one six-membered aromatic ring having amino groups linked to the six-membered aromatic ring by saturated carbon chains

97.

A NOVEL PROCESS FOR PREPARATION OF ARIPIPRAZOLE AND ITS INTERMEDIATES

      
Application Number IN2006000362
Publication Number 2007/094009
Status In Force
Filing Date 2006-09-12
Publication Date 2007-08-23
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Ramakrishnan, Arul
  • Subhash, V., Damle
  • Dharmesh, G., Panchal

Abstract

A process for the preparation of 7-hydroxy-3,4-dihydro carbostyril (II) by intramolecular Fridel-Craft alkylation of N-(3-methoxyphenyl)-3-chloropropionamide (I) in which an equivalent of N-(3-methoxyphenyl)-3-chloropropionamide (I) is contacted with a Lewis acid (e.g. aluminium chloride) in dimethyl acetamide (DMA), at an elevated temperature of from about 120°C to about 160°C, is provided. The process produces 7-hydroxy-3,4- dihydro carbostyril (II) in high yield and a high state of purity such that it may be used in subsequent .reaction towards the preparation of aripiprazole (IV). Thus 7-hydroxy-3,4- dihydro carbostyril (II) was treated with l-bromo-4-chlorobutane under phase transfer catalyst (PTC) conditions using solvents like acetone or n-butanol at temperature ranging 25°C to 45°C to afford 7-(4-chlorobutoxy)-3,4-dihydro carbostyril (III). The PTC conditions described in this patent afford 7-(4-chlorobutoxy)-3,4-dihydro carbostyril (III) in high purity and high yield with the corresponding dimmer formation is considerably low as compared with the other literature methods of preparing 7-(4-chlorobutoxy)-3,4- dihydro carbostyril (III). Compound (III) was treated with l-(2,3-dichlorophenyl)piperazine, at temperature ranging from 50°C to 100°C, and sodium iodide, potassium carbonate, dimethyl formamide (DMF) as a solvent to afford aripiprazole in high purity and high yield.

IPC Classes  ?

  • C07D 401/12 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links

98.

AN IMPROVED PROCESS FOR PREPARATION OF LEFLUNOMIDE

      
Application Number IN2006000359
Publication Number 2007/086076
Status In Force
Filing Date 2006-09-12
Publication Date 2007-08-02
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Ramakrishnan, Arul
  • Gobind, Kapkoti
  • Neeraj, Kumar
  • Dnyaneshwar, Shingare

Abstract

This invention describes a process for the preparation of N-(4-trifluoromethyl)-5-methylisoxazole-4-carboxamide commonly known as leflunomide comprising : (a) reacting ethylaceto acetate, triethylorthoformate, and acetic anhydride with simultaneous distillation to form ethyl ethoxymethyleneacetoacetic ester; (b) reacting the ethyl ethoxymethyleneacetoacetic ester with aqueous hydroxylamine without using any external base and without any distillation to form ethyl-5-methylisoxazole-4-carboxylate; (c) reacting the ethyl-5-methylisoxazole-4-carboxylate with strong acid to form -5-methylisoxazole-4-carboxylic acid; (d) 5-methylisoxazole-4-carboxylic acid is reacted with thionyl chloride in presence of N, N-Dimethylformamide and equimolar of 4-trifluoromethylaniline without any external base to obtain highly pure Leflunomide.

IPC Classes  ?

  • C07D 261/18 - Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen

99.

A NOVEL ONE POT PROCESS FOR PREPARATION OF PANTOPRAZOLE SODIUM SESQUIHYDRATE

      
Application Number IN2006000360
Publication Number 2007/086077
Status In Force
Filing Date 2006-09-12
Publication Date 2007-08-02
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Ramakrishnan, Arul
  • Tryambak, Muralidhar, Sonar
  • Asawari, Mokal

Abstract

The present invention provides a novel one-pot process for preparation of Pantoprazole sodium sesquihydrate Form-I in the pure form without isolating the pantoprazole base.

IPC Classes  ?

  • C07D 401/12 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links

100.

A NOVEL PROCESS FOR THE SYNTHESIS OF LAMOTRIGINE AND ITS INTERMEDIATE

      
Application Number IN2006000357
Publication Number 2007/069265
Status In Force
Filing Date 2006-09-12
Publication Date 2007-06-21
Owner UNICHEM LABORATORIES LIMITED (India)
Inventor
  • Ramakrishnan, Arul
  • Bhushan, Vasant, Dabholkar
  • Dinesh, B., Deore

Abstract

This invention discloses a process for the preparation of 3,5-Diamino-6-(2,3-dichlorophenyl)-1,2,4-triazine of a formula (I), commonly known as Lamotrigine which comprises the step of reacting aminoguanidine bicarbonarte and 2,3- dichlorobenzocynide with a reagent prepared by dissolving phosphorus pentoxide and methane sulfonic acid, to produce a novel intermediate 2-(2,3-dichlorophenyl)-2-(aminoguanidine)-acetonitrile monomesylate which is further cyclized to lamotrigine without basification.

IPC Classes  ?

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