Asceneuron SA

Switzerland

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IPC Class
C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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 17
C07D 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings 17
C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings 16
C07D 513/04 - Ortho-condensed systems 16
C07D 405/12 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links 15
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Status
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Registered / In Force 22
Found results for  patents

1.

(2-(4-(1-(BENZO[D]THIAZOL-5-YL)ETHYL)PIPERAZIN-1 -YL)PYRIMIDIN-5-YL)(IMINO)(METHYL)-LAMDA6-SULFANONE FOR USE IN THE TREATMENT OF COLITIS, PARKINSON DISEASE, TAUOPATHY, ALS AND ALZHEIMER'S DISEASE

      
Document Number 03315211
Status Pending
Filing Date 2023-12-20
Open to Public Date 2025-06-26
Owner ASCENEURON SA (Switzerland)
Inventor
  • Beher, Dirk
  • Permanne, Bruno
  • Pokorny, Rolf
  • Quattropani, Anna
  • Schubert, Ryan
  • Yuen, Eric C.

Abstract

The present invention relates to pharmaceutical compositions and medicaments comprising the compound of formula (I); or a stereoisomer, tautomer, pharmaceutically usable solvate or salt thereof, and dosage regimens for the administration thereof to human patients.

IPC Classes  ?

  • A61K 31/506 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
  • 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

2.

SULFOXIMINE GLYCOSIDASE INHIBITORS

      
Application Number 18913906
Status Pending
Filing Date 2024-10-11
First Publication Date 2025-04-10
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra

Abstract

Compounds of formula (I) Compounds of formula (I) Compounds of formula (I) wherein A, R, W, Q, n and m have the meaning according to the claims can be employed, inter alia, for the treatment of tauopathies and Alzheimer's disease.

IPC Classes  ?

  • C07D 471/04 - Ortho-condensed systems
  • A61K 9/00 - Medicinal preparations characterised by special physical form
  • A61K 9/02 - SuppositoriesBougiesBases for suppositories or bougies
  • A61K 9/06 - OintmentsBases therefor
  • A61K 9/19 - Particulate form, e.g. powders lyophilised
  • A61K 9/20 - Pills, lozenges or tablets
  • A61K 9/48 - Preparations in capsules, e.g. of gelatin, of chocolate
  • A61K 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
  • A61K 31/497 - Non-condensed pyrazines containing further heterocyclic rings
  • A61K 31/4985 - Pyrazines or piperazines ortho- or peri-condensed with heterocyclic ring systems
  • 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
  • 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
  • C07D 401/14 - 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 three or more hetero rings
  • 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 405/06 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
  • C07D 405/10 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing aromatic rings
  • C07D 405/12 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • C07D 407/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen 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 413/12 - 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 chain containing hetero atoms as chain links
  • 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 417/06 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
  • C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 475/04 - Heterocyclic compounds containing pteridine ring systems with an oxygen atom directly attached in position 4 with a nitrogen atom directly attached in position 2
  • C07D 487/04 - Ortho-condensed systems
  • C07D 491/048 - Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring the oxygen-containing ring being five-membered
  • C07D 495/04 - Ortho-condensed systems
  • C07D 498/04 - Ortho-condensed systems
  • C07D 513/04 - Ortho-condensed systems

3.

MEDICAMENTS COMPRISING GLYCOSIDASE INHIBITORS

      
Application Number 18570861
Status Pending
Filing Date 2021-07-05
First Publication Date 2024-08-29
Owner Asceneuron SA (Switzerland)
Inventor
  • Beher, Dirk
  • Permanne, Bruno
  • Pokorny, Rolf
  • Quattropani, Anna

Abstract

The present invention relates to pharmaceutical compositions and medicaments comprising the compound of formula (I) The present invention relates to pharmaceutical compositions and medicaments comprising the compound of formula (I) The present invention relates to pharmaceutical compositions and medicaments comprising the compound of formula (I) or pharmaceutically usable solvates, salts or tautomers thereof, and dosage regimens for the administration thereof to human patients.

IPC Classes  ?

  • A61K 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
  • A61P 1/00 - Drugs for disorders of the alimentary tract or the digestive system
  • A61P 9/10 - Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
  • A61P 25/08 - AntiepilepticsAnticonvulsants
  • 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

4.

Acid addition salts of piperazine derivatives

      
Application Number 18062295
Grant Number 12398130
Status In Force
Filing Date 2022-12-06
First Publication Date 2023-04-20
Grant Date 2025-08-26
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra
  • Toronto, Dawn V.
  • Crowe, David Malcolm

Abstract

The invention relates to acid addition salts of piperazine derivatives, as well as solid forms, such as polymorphic forms, thereof, which are useful as pharmaceutical ingredients and, in particular, as glycosidase inhibitors.

IPC Classes  ?

  • C07D 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 405/12 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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 513/04 - Ortho-condensed systems

5.

MEDICAMENTS COMPRISING GLYCOSIDASE INHIBITORS

      
Document Number 03223922
Status In Force
Filing Date 2021-07-05
Open to Public Date 2023-01-12
Grant Date 2026-02-24
Owner ASCENEURON SA (Switzerland)
Inventor
  • Beher, Dirk
  • Permanne, Bruno
  • Pokorny, Rolf
  • Quattropani, Anna

Abstract

The present invention relates to pharmaceutical compositions and medicaments comprising the compound of formula (I) (Formula I) or pharmaceutically usable solvates, salts or tautomers therof and dosage regimens for the administration thereof to human patients.

IPC Classes  ?

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

6.

Glycosidase inhibitors

      
Application Number 17246143
Grant Number 12187741
Status In Force
Filing Date 2021-04-30
First Publication Date 2022-12-29
Grant Date 2025-01-07
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra

Abstract

The disclosure relates to compounds of formula (I) useful in the treatment of tauopathies and Alzheimer's disease wherein A, R, W, Q, n, and m are described herein.

IPC Classes  ?

  • C07D 513/04 - Ortho-condensed systems
  • A61K 31/454 - Non-condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems containing a five-membered ring with nitrogen as a ring hetero atom, e.g. pimozide, domperidone
  • A61K 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
  • A61K 31/497 - Non-condensed pyrazines containing further heterocyclic rings
  • A61K 31/498 - Pyrazines or piperazines ortho- or peri-condensed with carbocyclic ring systems, e.g. quinoxaline, phenazine
  • A61K 31/501 - PyridazinesHydrogenated pyridazines not condensed and containing further heterocyclic rings
  • A61K 31/506 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
  • A61K 31/517 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with carbocyclic ring systems, e.g. quinazoline, perimidine
  • A61K 31/519 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
  • A61K 31/5377 - 1,4-Oxazines, e.g. morpholine not condensed and containing further heterocyclic rings, e.g. timolol
  • A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
  • C07D 277/46 - Acylated amino or imino radicals by carboxylic acids, or sulfur or nitrogen analogues thereof
  • C07D 285/135 - Nitrogen atoms
  • 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
  • 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 405/12 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • C07D 413/12 - 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 chain containing hetero atoms as chain links
  • 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 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 487/04 - Ortho-condensed systems

7.

Tetrahydro-benzoazepine glycosidase inhibitors

      
Application Number 17269817
Grant Number 11795165
Status In Force
Filing Date 2019-08-22
First Publication Date 2022-12-01
Grant Date 2023-10-24
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra
  • Wishart, Grant
  • Rakesh, Paul

Abstract

4, L, W, Z, R′″, m and n have the meaning according to the claims, can be employed, inter alia, for the treatment of tauopathies and Alzheimer's disease.

IPC Classes  ?

  • C07D 417/06 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
  • A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
  • C07D 405/06 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
  • C07D 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 471/04 - Ortho-condensed systems
  • C07D 487/04 - Ortho-condensed systems
  • C07D 491/048 - Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring the oxygen-containing ring being five-membered
  • C07D 519/00 - Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups or

8.

Sulfoximine glycosidase inhibitors

      
Application Number 17552100
Grant Number 12157734
Status In Force
Filing Date 2021-12-15
First Publication Date 2022-06-09
Grant Date 2024-12-03
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra

Abstract

Compounds of formula (I), wherein A, R, W, Q, n, and m have the meaning according to the claims, can be employed, inter alia, for the treatment of tauopathies and Alzheimer's disease.

IPC Classes  ?

  • A61K 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
  • A61K 9/00 - Medicinal preparations characterised by special physical form
  • A61K 9/02 - SuppositoriesBougiesBases for suppositories or bougies
  • A61K 9/06 - OintmentsBases therefor
  • A61K 9/19 - Particulate form, e.g. powders lyophilised
  • A61K 9/20 - Pills, lozenges or tablets
  • A61K 9/48 - Preparations in capsules, e.g. of gelatin, of chocolate
  • A61K 31/497 - Non-condensed pyrazines containing further heterocyclic rings
  • A61K 31/4985 - Pyrazines or piperazines ortho- or peri-condensed with heterocyclic ring systems
  • A61K 31/501 - PyridazinesHydrogenated pyridazines not condensed and containing further heterocyclic rings
  • A61K 31/506 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
  • A61P 3/10 - Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
  • A61P 9/00 - Drugs for disorders of the cardiovascular system
  • A61P 21/00 - Drugs for disorders of the muscular or neuromuscular system
  • A61P 25/00 - Drugs for disorders of the nervous system
  • A61P 25/14 - Drugs for disorders of the nervous system for treating abnormal movements, e.g. chorea, dyskinesia
  • 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
  • A61P 35/00 - Antineoplastic agents
  • A61P 43/00 - Drugs for specific purposes, not provided for in groups
  • 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
  • C07D 401/14 - 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 three or more hetero rings
  • 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 405/06 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
  • C07D 405/10 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing aromatic rings
  • C07D 405/12 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • C07D 407/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen 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 413/12 - 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 chain containing hetero atoms as chain links
  • 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 417/06 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
  • C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 471/04 - Ortho-condensed systems
  • C07D 475/04 - Heterocyclic compounds containing pteridine ring systems with an oxygen atom directly attached in position 4 with a nitrogen atom directly attached in position 2
  • C07D 487/04 - Ortho-condensed systems
  • C07D 491/048 - Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring the oxygen-containing ring being five-membered
  • C07D 495/04 - Ortho-condensed systems
  • C07D 498/04 - Ortho-condensed systems
  • C07D 513/04 - Ortho-condensed systems

9.

FUSED GLYCOSIDASE INHIBITORS

      
Application Number 17431736
Status Pending
Filing Date 2020-02-21
First Publication Date 2022-05-12
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Rakesh, Paul

Abstract

This application pertains to compounds of formula (I) This application pertains to compounds of formula (I) This application pertains to compounds of formula (I) wherein A, Z, E, R1, R2, m and n have the meaning according to the claims, and the compounds can be employed, inter alia, for the treatment of tauopathies and Alzheimer's disease.

IPC Classes  ?

  • A61K 31/551 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having seven-membered rings, e.g. azelastine, pentylenetetrazole having two nitrogens as ring hetero atoms, e.g. clozapine, dilazep
  • C07D 487/04 - Ortho-condensed systems
  • C07D 513/04 - Ortho-condensed systems
  • C07D 495/04 - Ortho-condensed systems
  • C07D 498/04 - Ortho-condensed systems
  • A61K 31/55 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having seven-membered rings, e.g. azelastine, pentylenetetrazole

10.

Pyrrolidine glycosidase inhibitors

      
Application Number 17269814
Grant Number 12016852
Status In Force
Filing Date 2019-08-22
First Publication Date 2021-07-15
Grant Date 2024-06-25
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Wishart, Grant
  • Kulkarni, Santosh S.
  • Rakesh, Paul

Abstract

3b, Z and p have the meaning according to the claims, can be employed, inter alia, for the treatment of taupathies and Alzheimer's disease.

IPC Classes  ?

  • A61K 31/4439 - Non-condensed pyridinesHydrogenated derivatives thereof containing further heterocyclic ring systems containing a five-membered ring with nitrogen as a ring hetero atom, e.g. omeprazole
  • A61K 31/4025 - 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 not condensed and containing further heterocyclic rings, e.g. cromakalim
  • A61K 31/4155 - 1,2-Diazoles not condensed and containing further heterocyclic rings
  • A61K 31/416 - 1,2-Diazoles condensed with carbocyclic ring systems, e.g. indazole
  • A61K 31/4196 - 1,2,4-Triazoles
  • A61K 31/422 - Oxazoles not condensed and containing further heterocyclic rings
  • A61K 31/4245 - Oxadiazoles
  • A61K 31/427 - Thiazoles not condensed and containing further heterocyclic rings
  • A61K 31/454 - Non-condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems containing a five-membered ring with nitrogen as a ring hetero atom, e.g. pimozide, domperidone
  • A61K 31/4709 - Non-condensed quinolines containing further heterocyclic rings
  • A61K 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
  • A61K 31/497 - Non-condensed pyrazines containing further heterocyclic rings
  • A61K 31/501 - PyridazinesHydrogenated pyridazines not condensed and containing further heterocyclic rings
  • A61K 31/506 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
  • A61K 31/5377 - 1,4-Oxazines, e.g. morpholine not condensed and containing further heterocyclic rings, e.g. timolol
  • A61K 31/541 - Non-condensed thiazines containing further heterocyclic rings
  • C07D 401/14 - 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 three or more hetero rings
  • C07D 405/04 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring- member bond
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • 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 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings

11.

Spiro compounds as glycosidase inhibitors

      
Application Number 17269823
Grant Number 11731972
Status In Force
Filing Date 2019-08-22
First Publication Date 2021-07-08
Grant Date 2023-08-22
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Rakesh, Paul
  • Giri, Awadut Gajendra

Abstract

2 and n have the meaning according to the claims, can be employed, inter alia, for the treatment of tauopathies and Alzheimer's disease.

IPC Classes  ?

  • C07D 471/10 - Spiro-condensed systems
  • A61K 31/438 - 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 the ring being spiro-condensed with carbocyclic or heterocyclic ring systems
  • C07D 519/00 - Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups or

12.

Succinate and fumarate acid addition salts of piperazine derivatives

      
Application Number 17269811
Grant Number 12195455
Status In Force
Filing Date 2019-08-22
First Publication Date 2021-07-01
Grant Date 2025-01-14
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra
  • Hett, Robert
  • Crowe, David Malcolm

Abstract

The invention relates to succinic acid addition salts or fumaric acid addition salts of piperazine derivatives of formula (I), as well as solid forms, such as polymorphic forms, thereof, which are useful as pharmaceutical ingredients and, in particular, as glycosidase inhibitors.

IPC Classes  ?

  • C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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

13.

Glycosidase inhibitors

      
Application Number 16078159
Grant Number 11612599
Status In Force
Filing Date 2017-02-24
First Publication Date 2021-06-24
Grant Date 2023-03-28
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra

Abstract

Compounds of formula (I), wherein A, R, W, Q, n and m have the meaning according to the claims, can be employed, inter alia, for the treatment of tauopathies and Alzheimer's disease.

IPC Classes  ?

  • A61K 31/519 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
  • A61K 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
  • A61K 31/454 - Non-condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems containing a five-membered ring with nitrogen as a ring hetero atom, e.g. pimozide, domperidone
  • A61K 31/498 - Pyrazines or piperazines ortho- or peri-condensed with carbocyclic ring systems, e.g. quinoxaline, phenazine
  • A61K 31/4985 - Pyrazines or piperazines ortho- or peri-condensed with heterocyclic ring systems
  • A61K 31/501 - PyridazinesHydrogenated pyridazines not condensed and containing further heterocyclic rings
  • A61K 31/506 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
  • A61K 31/5383 - 1,4-Oxazines, e.g. morpholine ortho- or peri-condensed with heterocyclic ring systems
  • C07D 401/14 - 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 three or more hetero rings
  • 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 405/12 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • 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 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 471/04 - Ortho-condensed systems
  • C07D 487/04 - Ortho-condensed systems
  • C07D 491/048 - Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring the oxygen-containing ring being five-membered
  • C07D 491/052 - Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring the oxygen-containing ring being six-membered
  • C07D 495/04 - Ortho-condensed systems
  • C07D 498/04 - Ortho-condensed systems
  • C07D 513/04 - Ortho-condensed systems
  • C07D 519/00 - Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups or

14.

Linear glycosidase inhibitors

      
Application Number 16640280
Grant Number 11213525
Status In Force
Filing Date 2017-08-24
First Publication Date 2021-03-18
Grant Date 2022-01-04
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra

Abstract

Compounds of formula (I), wherein A, R, W, Q, L, n and m have the meaning according to the claims, can be employed, inter alia, for the treatment of tauopathies and Alzheimer's disease.

IPC Classes  ?

  • A61K 31/506 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
  • A61K 9/00 - Medicinal preparations characterised by special physical form
  • A61K 9/02 - SuppositoriesBougiesBases for suppositories or bougies
  • A61K 9/06 - OintmentsBases therefor
  • A61K 9/08 - Solutions
  • A61K 9/28 - DrageesCoated pills or tablets
  • A61K 9/48 - Preparations in capsules, e.g. of gelatin, of chocolate
  • A61K 31/4525 - Non-condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems containing a five-membered ring with oxygen as a ring hetero atom
  • 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 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
  • A61K 31/498 - Pyrazines or piperazines ortho- or peri-condensed with carbocyclic ring systems, e.g. quinoxaline, phenazine
  • A61K 31/501 - PyridazinesHydrogenated pyridazines not condensed and containing further heterocyclic rings
  • C07D 401/14 - 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 three or more hetero rings
  • C07D 405/06 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • C07D 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C12N 9/99 - Enzyme inactivation by chemical treatment

15.

Acid addition salts of piperazine derivatives

      
Application Number 16877284
Grant Number 11591327
Status In Force
Filing Date 2020-05-18
First Publication Date 2020-12-10
Grant Date 2023-02-28
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra
  • Toronto, Dawn V.
  • Crowe, David Malcolm

Abstract

The invention relates to acid addition salts of piperazine derivatives, as well as solid forms, such as polymorphic forms, thereof, which are useful as pharmaceutical ingredients and, in particular, as glycosidase inhibitors.

IPC Classes  ?

  • C07D 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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 513/04 - Ortho-condensed systems
  • C07D 405/12 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links

16.

Annulated glycosidase inhibitors

      
Application Number 16640264
Grant Number 11458140
Status In Force
Filing Date 2017-08-24
First Publication Date 2020-09-17
Grant Date 2022-10-04
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra

Abstract

x and u have the meaning according to the claims, can be employed, inter alia, for the treatment of tauopathies and Alzheimer's disease.

IPC Classes  ?

  • A61K 31/519 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
  • 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 31/444 - Non-condensed pyridinesHydrogenated derivatives thereof containing further heterocyclic ring systems containing a six-membered ring with nitrogen as a ring hetero atom, e.g. amrinone
  • A61K 31/4725 - Non-condensed isoquinolines, e.g. papaverine containing further heterocyclic rings
  • A61K 31/4985 - Pyrazines or piperazines ortho- or peri-condensed with heterocyclic ring systems
  • A61K 31/506 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
  • A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
  • C07D 405/10 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing aromatic rings
  • C07D 471/02 - Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups in which the condensed system contains two hetero rings
  • C07D 471/04 - Ortho-condensed systems
  • C07D 513/04 - Ortho-condensed systems

17.

SUCCINATE AND FUMARATE ACID ADDITION SALTS OF PIPERAZINE DERIVATIVES

      
Document Number 03110032
Status Pending
Filing Date 2019-08-22
Open to Public Date 2020-02-27
Owner ASCENEURON S.A. (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra
  • Hett, Robert
  • Crowe, David Malcolm

Abstract

The invention relates to succinic acid addition salts or fumaric acid addition salts of piperazine derivatives of formula (I), as well as solid forms, such as polymorphic forms, thereof, which are useful as pharmaceutical ingredients and in particular as glycosidase inhibitors.

IPC Classes  ?

  • A61K 31/506 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
  • 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
  • C07D 277/62 - Benzothiazoles
  • C07D 277/64 - Benzothiazoles with only hydrocarbon or substituted hydrocarbon radicals attached in position 2
  • C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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

18.

Sulfoximine glycosidase inhibitors

      
Application Number 16488139
Grant Number 11261183
Status In Force
Filing Date 2017-08-24
First Publication Date 2020-01-02
Grant Date 2022-03-01
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra

Abstract

Compounds of formula (I), wherein A, R, W, Q, n, and m have the meaning according to the claims, can be employed, inter alia, for the treatment of tauopathies and Alzheimer's disease.

IPC Classes  ?

  • A61K 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
  • A61K 31/497 - Non-condensed pyrazines containing further heterocyclic rings
  • A61K 31/501 - PyridazinesHydrogenated pyridazines not condensed and containing further heterocyclic rings
  • A61K 31/506 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
  • A61P 3/10 - Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
  • A61P 9/00 - Drugs for disorders of the cardiovascular system
  • A61P 21/00 - Drugs for disorders of the muscular or neuromuscular system
  • A61P 25/00 - Drugs for disorders of the nervous system
  • A61P 25/14 - Drugs for disorders of the nervous system for treating abnormal movements, e.g. chorea, dyskinesia
  • A61P 25/16 - Anti-Parkinson drugs
  • A61P 35/00 - Antineoplastic agents
  • A61P 43/00 - Drugs for specific purposes, not provided for in groups
  • 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
  • C07D 401/14 - 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 three or more hetero rings
  • 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 405/06 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
  • C07D 405/10 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing aromatic rings
  • C07D 405/12 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • C07D 407/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen 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 413/12 - 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 chain containing hetero atoms as chain links
  • 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 417/06 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
  • C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 471/04 - Ortho-condensed systems
  • C07D 475/04 - Heterocyclic compounds containing pteridine ring systems with an oxygen atom directly attached in position 4 with a nitrogen atom directly attached in position 2
  • C07D 487/04 - Ortho-condensed systems
  • C07D 491/048 - Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring the oxygen-containing ring being five-membered
  • C07D 495/04 - Ortho-condensed systems
  • C07D 498/04 - Ortho-condensed systems
  • C07D 513/04 - Ortho-condensed systems
  • 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
  • A61K 9/00 - Medicinal preparations characterised by special physical form
  • A61K 9/02 - SuppositoriesBougiesBases for suppositories or bougies
  • A61K 9/06 - OintmentsBases therefor
  • A61K 9/19 - Particulate form, e.g. powders lyophilised
  • A61K 9/20 - Pills, lozenges or tablets
  • A61K 9/48 - Preparations in capsules, e.g. of gelatin, of chocolate
  • A61K 31/4985 - Pyrazines or piperazines ortho- or peri-condensed with heterocyclic ring systems

19.

Substituted dihydrobenzofuran glycosidase inhibitors

      
Application Number 16488163
Grant Number 10995090
Status In Force
Filing Date 2017-08-24
First Publication Date 2019-12-26
Grant Date 2021-05-04
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra

Abstract

Compounds of formula (I), wherein R′, R″, R, X, W, Q, n, and m have the meaning according to the claims, can be employed, inter alia, for the treatment of tauopathies and Alzheimer's disease.

IPC Classes  ?

  • C07D 471/04 - Ortho-condensed systems
  • 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
  • C07D 401/14 - 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 three or more hetero rings
  • 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 405/12 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • C07D 407/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen 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 413/12 - 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 chain containing hetero atoms as chain links
  • 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 417/06 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
  • C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 475/04 - Heterocyclic compounds containing pteridine ring systems with an oxygen atom directly attached in position 4 with a nitrogen atom directly attached in position 2
  • C07D 487/04 - Ortho-condensed systems
  • C07D 491/048 - Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring the oxygen-containing ring being five-membered
  • C07D 495/04 - Ortho-condensed systems
  • C07D 498/04 - Ortho-condensed systems
  • C07D 513/04 - Ortho-condensed systems
  • 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
  • C07D 405/06 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
  • A61K 9/00 - Medicinal preparations characterised by special physical form
  • A61K 9/02 - SuppositoriesBougiesBases for suppositories or bougies
  • A61K 9/06 - OintmentsBases therefor
  • A61K 9/19 - Particulate form, e.g. powders lyophilised
  • A61K 9/20 - Pills, lozenges or tablets
  • A61K 9/48 - Preparations in capsules, e.g. of gelatin, of chocolate
  • A61K 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
  • A61K 31/497 - Non-condensed pyrazines containing further heterocyclic rings
  • A61K 31/4985 - Pyrazines or piperazines ortho- or peri-condensed with heterocyclic ring systems
  • C07D 405/10 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing aromatic rings

20.

Glycosidase inhibitors

      
Application Number 16412689
Grant Number 11046712
Status In Force
Filing Date 2019-05-15
First Publication Date 2019-12-05
Grant Date 2021-06-29
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra

Abstract

The disclosure relates to compounds of formula (I) useful in the treatment of tauopathies and Alzheimer's disease wherein A, R, W, Q, n, and m are described herein.

IPC Classes  ?

  • C07D 513/04 - Ortho-condensed systems
  • 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 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • 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 31/454 - Non-condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems containing a five-membered ring with nitrogen as a ring hetero atom, e.g. pimozide, domperidone
  • A61K 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
  • A61K 31/497 - Non-condensed pyrazines containing further heterocyclic rings
  • A61K 31/498 - Pyrazines or piperazines ortho- or peri-condensed with carbocyclic ring systems, e.g. quinoxaline, phenazine
  • A61K 31/501 - PyridazinesHydrogenated pyridazines not condensed and containing further heterocyclic rings
  • A61K 31/506 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
  • A61K 31/5377 - 1,4-Oxazines, e.g. morpholine not condensed and containing further heterocyclic rings, e.g. timolol
  • 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
  • C07D 405/12 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 413/12 - 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 chain containing hetero atoms as chain links
  • C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 487/04 - Ortho-condensed systems
  • C07D 285/135 - Nitrogen atoms
  • A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
  • A61K 31/517 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with carbocyclic ring systems, e.g. quinazoline, perimidine
  • A61K 31/519 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
  • C07D 277/46 - Acylated amino or imino radicals by carboxylic acids, or sulfur or nitrogen analogues thereof

21.

Glycosidase inhibitors

      
Application Number 16078155
Grant Number 10556902
Status In Force
Filing Date 2017-02-24
First Publication Date 2019-02-21
Grant Date 2020-02-11
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra

Abstract

Compounds of formula (I) wherein A, R, W, Q, n and m have the meaning according to the claims can be employed, inter alia, for the treatment of tauopathies and Alzheimer's disease.

IPC Classes  ?

  • A61K 31/519 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
  • C07D 471/04 - Ortho-condensed systems
  • 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 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • 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
  • C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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 513/04 - Ortho-condensed systems
  • C07D 401/14 - 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 three or more hetero rings
  • C07D 405/12 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • 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

22.

Acid addition salts of piperazine derivatives

      
Application Number 16079162
Grant Number 10696668
Status In Force
Filing Date 2017-02-24
First Publication Date 2019-02-21
Grant Date 2020-06-30
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra
  • Toronto, Dawn V.
  • Crowe, David Malcolm

Abstract

The invention relates to acid addition salts of piperazine derivatives, as well as solid forms, such as polymorphic forms, thereof, which are useful as pharmaceutical ingredients and, in particular, as glycosidase inhibitors.

IPC Classes  ?

  • C07D 417/04 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing two hetero rings directly linked by a ring-member-to-ring- member bond
  • A61K 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
  • C07D 405/12 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 513/04 - Ortho-condensed systems
  • C07D 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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

23.

SULFOXIMINE GLYCOSIDASE INHIBITORS

      
Document Number 03053200
Status In Force
Filing Date 2017-08-24
Open to Public Date 2018-08-30
Grant Date 2023-03-14
Owner ASCENEURON S.A. (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra

Abstract

The present disclosure relates to compounds of formula (I)and/or physiologically acceptable salts, tautomers, solvates, stereoisomers and derivatives thereof. The compounds of formula (I) can be used as glycosidase inhibitors. The compounds of formula (I) can be used for the treatment of one or more tauopathies and Alzheimer's disease.

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
  • C07D 405/12 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 413/12 - 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 chain containing hetero atoms as chain links
  • C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 495/04 - Ortho-condensed systems

24.

Glycosidase inhibitors

      
Application Number 15507375
Grant Number 10336775
Status In Force
Filing Date 2015-08-27
First Publication Date 2017-10-19
Grant Date 2019-07-02
Owner Asceneuron SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra

Abstract

The disclosure relates to compounds of formula (I) useful in the treatment of tauopathies and Alzheimer's disease wherein A, R, W, Q, n, and m are described herein.

IPC Classes  ?

  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • C07D 513/04 - Ortho-condensed systems
  • 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 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 31/454 - Non-condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems containing a five-membered ring with nitrogen as a ring hetero atom, e.g. pimozide, domperidone
  • A61K 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
  • A61K 31/497 - Non-condensed pyrazines containing further heterocyclic rings
  • A61K 31/498 - Pyrazines or piperazines ortho- or peri-condensed with carbocyclic ring systems, e.g. quinoxaline, phenazine
  • A61K 31/501 - PyridazinesHydrogenated pyridazines not condensed and containing further heterocyclic rings
  • A61K 31/506 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
  • A61K 31/5377 - 1,4-Oxazines, e.g. morpholine not condensed and containing further heterocyclic rings, e.g. timolol
  • 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
  • C07D 405/12 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 413/12 - 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 chain containing hetero atoms as chain links
  • C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 487/04 - Ortho-condensed systems
  • C07D 285/135 - Nitrogen atoms
  • A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
  • A61K 31/517 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with carbocyclic ring systems, e.g. quinazoline, perimidine
  • A61K 31/519 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
  • C07D 277/46 - Acylated amino or imino radicals by carboxylic acids, or sulfur or nitrogen analogues thereof

25.

ACID ADDITION SALTS OF PIPERAZINE DERIVATIVES

      
Document Number 03014572
Status In Force
Filing Date 2017-02-24
Open to Public Date 2017-08-31
Grant Date 2023-10-03
Owner ASCENEURON S.A. (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra
  • Toronto, Dawn V.
  • Crowe, David Malcolm

Abstract

The invention relates to acid addition salts of piperazine derivatives, as well as solid forms, such as polymorphic forms, thereof, which are useful as pharmaceutical ingredients and in particular as glycosidase inhibitors.

IPC Classes  ?

  • A61K 31/497 - Non-condensed pyrazines containing further heterocyclic rings
  • A61K 31/506 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
  • A61K 31/5377 - 1,4-Oxazines, e.g. morpholine not condensed and containing further heterocyclic rings, e.g. timolol
  • A61P 25/00 - Drugs for disorders of the nervous system
  • C07D 405/12 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 513/04 - Ortho-condensed systems

26.

Tetraaza-cyclopenta[a]indenyl derivatives

      
Application Number 14896757
Grant Number 09505769
Status In Force
Filing Date 2014-06-12
First Publication Date 2016-05-19
Grant Date 2016-11-29
Owner ASCENEURON SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Murugesan, Kathiravan
  • Banerjee, Joydeep

Abstract

The present invention provides compounds of Formula (I) as M1 receptor positive allosteric modulators for the treatment of diseases mediated by the muscarinic M1 mediator.

IPC Classes  ?

  • C07D 487/04 - Ortho-condensed systems
  • A61K 31/519 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
  • A61K 31/5377 - 1,4-Oxazines, e.g. morpholine not condensed and containing further heterocyclic rings, e.g. timolol
  • C07D 519/00 - Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups or
  • C07D 487/12 - Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups in which the condensed system contains three hetero rings

27.

SUBSTITUTED CYCLIC AMINES AS GLUCOSIDASE INHIBITORS

      
Document Number 02958966
Status In Force
Filing Date 2015-08-27
Open to Public Date 2016-03-03
Grant Date 2020-01-14
Owner ASCENEURON SA (Switzerland)
Inventor
  • Quattropani, Anna
  • Kulkarni, Santosh S.
  • Giri, Awadut Gajendra

Abstract

Compounds of formula (I) wherein A, R, W, Q, n and m have the meaning according to the claims can be employed, inter alia, for the treatment of tauopathies and Alzheimer's disease.

IPC Classes  ?

  • A61K 31/433 - Thiadiazoles
  • 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 31/443 - Non-condensed pyridinesHydrogenated derivatives thereof containing further heterocyclic ring systems containing a five-membered ring with oxygen as a ring hetero atom
  • A61K 31/498 - Pyrazines or piperazines ortho- or peri-condensed with carbocyclic ring systems, e.g. quinoxaline, phenazine
  • A61K 31/502 - PyridazinesHydrogenated pyridazines ortho- or peri-condensed with carbocyclic ring systems, e.g. cinnoline, phthalazine
  • A61K 31/506 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
  • A61K 31/519 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
  • 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
  • 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 405/12 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • C07D 413/12 - 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 chain containing hetero atoms as chain links
  • 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 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur 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 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 471/04 - Ortho-condensed systems
  • C07D 487/04 - Ortho-condensed systems
  • C07D 513/04 - Ortho-condensed systems