Porton Pharma Solutions Ltd.

China

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        Patent 10
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Date
2024 December 1
2024 October 2
2024 5
2022 5
2021 4
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IPC Class
C07C 215/44 - Compounds containing amino and hydroxy groups bound to the same carbon skeleton having amino groups or hydroxy groups bound to carbon atoms of rings other than six-membered aromatic rings of the same carbon skeleton bound to carbon atoms of the same ring or condensed ring system 3
C07D 401/04 - 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 directly linked by a ring-member-to-ring- member bond 3
C12P 17/16 - Preparation of heterocyclic carbon compounds with only O, N, S, Se, or Te as ring hetero atoms containing two or more hetero rings 3
A61K 31/4192 - 1,2,3-Triazoles 2
C07C 213/00 - Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton 2
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NICE Class
01 - Chemical and biological materials for industrial, scientific and agricultural use 5
05 - Pharmaceutical, veterinary and sanitary products 4
34 - Tobacco; smokers' articles 4
07 - Machines and machine tools 2
09 - Scientific and electric apparatus and instruments 2
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Status
Pending 2
Registered / In Force 15

1.

METHOD FOR PREPARING INTERMEDIATE OF ADRENERGIC RECEPTOR AGONIST

      
Application Number CN2024106105
Publication Number 2024/251302
Status In Force
Filing Date 2024-07-18
Publication Date 2024-12-12
Owner PORTON PHARMA SOLUTIONS LTD. (China)
Inventor
  • Lin, Wenqing
  • Li, Jianguo
  • Xu, Huan
  • Liu, Shikui
  • Zheng, Hongjie
  • Lei, Xiaoli
  • Zhang, Jing

Abstract

3122 are each individually a leaving group. The method uses easily available raw materials, avoids the use of toxic and harmful reagents, is mild in terms of reaction conditions, is simple to operate, achieves a substantial improvement in yield and reduction in cost, and is more favorable for commercial production.

IPC Classes  ?

2.

CRYSTALLINE FORMS OF A 1H-1,2,3-TRIAZOLE-4-CARBOXYLIC ACID COMPOUND

      
Application Number US2024024106
Publication Number 2024/215907
Status In Force
Filing Date 2024-04-11
Publication Date 2024-10-17
Owner
  • CANTERO THERAPEUTICS, INC. (USA)
  • BRIDGEBIO SERVICES INC. (USA)
  • PORTON PHARMA SOLUTIONS LTD. (China)
Inventor
  • Hu, Juan
  • Zhang, Xinxu
  • Sheng, Fei
  • Juang, Shanming
  • Henry, Christopher E.

Abstract

The present disclosure provides 1) crystalline Form A of Compound la or a tautomer thereof; 2) crystalline Forms D and E of Compound lb, or a tautomer and/or hydrate thereof; and 3) co-crystalline Form C of Compound 1 and Compound lb, or a tautomer thereof, each of which is represented by the formula: (Compound 1a), (Compound 1b), (Compound 1), or a tautomer thereof. The present disclosure also provides methods for preparing crystalline Form A of Compound la. Compositions including one or more of crystalline Forms A, D, E, and C and methods of treating a disease or disorder (e.g., primary hyperoxaluria (PHI), kidney and/or bladder stones, hyperoxaluria) thereof are also provided herein. Further, the present disclosure provides processes for preparing compounds (e.g., Compound 1, Compound 1b, and formula (I) - an ester of Compound 1).

IPC Classes  ?

3.

CRYSTALLINE FORMS OF A 1H-1, 2, 3-TRIAZOLE-4-CARBOXYLIC ACID COMPOUND

      
Application Number CN2023087904
Publication Number 2024/212137
Status In Force
Filing Date 2023-04-12
Publication Date 2024-10-17
Owner
  • CANTERO THERAPEUTICS, INC. (USA)
  • BRIDGEBIO SERVICES INC. (USA)
  • PORTON PHARMA SOLUTIONS LTD. (China)
Inventor
  • Hu, Juan
  • Zhang, Xinxu
  • Sheng, Fei
  • Juang, Shanming
  • Henry, Christopher, E.

Abstract

The present disclosure provides 1) crystalline Form A of Compound 1a or a tautomer thereof; 2) crystalline Forms D and E of Compound 1b, or a tautomer and/or hydrate thereof; and 3) co-crystalline Form C of Compound 1 and Compound 1b, or a tautomer thereof, each of which is represented by the formula: or a tautomer thereof. The present disclosure also provides methods for preparing crystalline Form A of Compound 1a. Compositions including one or more of crystalline Forms A, D, E, and C and methods of treating a disease or disorder (e.g., primary hyperoxaluria (PH1), kidney and/or bladder stones, hyperoxaluria) thereof are also provided herein. Further, the present disclosure provides processes for preparing compounds (e.g., Compound 1, Compound 1b, and formula (I) − an ester of Compound 1).

IPC Classes  ?

4.

IMINE REDUCTASE MUTANT, CO-EXPRESSED RECOMBINANT ENZYME OF IMINE REDUCTASE AND GLUCOSE DEHYDROGENASE, AND APPLICATIONS THEREOF

      
Application Number 18389868
Status Pending
Filing Date 2023-12-20
First Publication Date 2024-05-02
Owner Porton Pharma Solutions Ltd. (China)
Inventor Chen, Zecong

Abstract

An imine reductase mutant, including a mutation in an amino acid sequence represented by SEQ ID NO: 1. The mutation in the amino acid sequence includes V171, A172, Y230, or a combination thereof. Also provided is a method for preparing (S)-nicotine, including: under suitable conditions, catalytically reducing a substrate I to (S)-nornicotine by the imine reductase mutant, and methylating (S)-nornicotine to yield (S)-nicotine.

IPC Classes  ?

  • C12N 9/06 - Oxidoreductases (1.), e.g. luciferase acting on nitrogen containing compounds as donors (1.4, 1.5, 1.7)
  • C12P 17/16 - Preparation of heterocyclic carbon compounds with only O, N, S, Se, or Te as ring hetero atoms containing two or more hetero rings

5.

METHOD FOR PREPARING (S)-NICOTINE BY REDUCTION

      
Application Number 18522203
Status Pending
Filing Date 2023-11-28
First Publication Date 2024-04-18
Owner Porton Pharma Solutions Ltd. (China)
Inventor
  • Lin, Wenqing
  • Zheng, Hongjie
  • Liu, Xiaobo
  • Chen, Zecong
  • Li, Lingyu
  • Zhou, Qingjun
  • Wang, Songhe
  • Yue, Yongtang
  • Hu, Jicheng
  • Zhang, Yue
  • Miao, Shanshan

Abstract

A method for preparing (S)-nicotine by reduction includes conducting a reduction process on an alkene compound as shown in Formula I and/or an iminium cation compound as shown in Formula II, thereby producing (S)-nicotine. The method is simple, safe, reliable, and yields both high purity and high quantities of (S)-nicotine production.

IPC Classes  ?

  • C12P 17/12 - Nitrogen as only ring hetero atom containing a six-membered hetero ring
  • C07D 401/04 - 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 directly linked by a ring-member-to-ring- member bond

6.

METHOD FOR USING REDUCTION TO PREPARE (S)-NICOTINE

      
Application Number CN2022095423
Publication Number 2022/253111
Status In Force
Filing Date 2022-05-27
Publication Date 2022-12-08
Owner PORTON PHARMA SOLUTIONS LTD. (China)
Inventor
  • Lin, Wenqing
  • Zheng, Hongjie
  • Liu, Xiaobo
  • Chen, Zecong
  • Li, Lingyu
  • Zhou, Qingjun
  • Wang, Songhe
  • Yue, Yongtang
  • Hu, Jicheng
  • Zhang, Yue
  • Miao, Shanshan

Abstract

A method for using reduction to prepare (S)-nicotine, the method comprising: subjecting the enamine compound represented by formula I and/or the imine cation compound represented by formula II to a reduction reaction to obtain (S)-nicotine. As most of the strategies disclosed in the prior art for preparing (S)-nicotine require methylation to obtain (S)-nicotine, or (S)-nicotine can not be obtained by enzymatic catalysis without methylation, (S)-nicotine preparation strategies are still very limited, and a novel method for the efficient preparation of (S)-nicotine without the need to use methylation has thus been innovatively developed, namely subjecting the enamine compound represented by formula I and/or the imine cation compound represented by formula II to a reduction reaction. The present synthesis method is safe and reliable, and has simple operation and a high yield and high purity.

IPC Classes  ?

  • C12P 17/16 - Preparation of heterocyclic carbon compounds with only O, N, S, Se, or Te as ring hetero atoms containing two or more hetero rings
  • C07D 401/04 - 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 directly linked by a ring-member-to-ring- member bond

7.

PharmaOryx

      
Application Number 1671164
Status Registered
Filing Date 2022-03-10
Registration Date 2022-03-10
Owner Porton Pharma Solutions Ltd. (China)
NICE Classes  ?
  • 07 - Machines and machine tools
  • 09 - Scientific and electric apparatus and instruments
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Mixing machines; industrial marking machine; packaging machines; machines for pharmaceutical processing industry; disintegrators; rubber processing machine; machinery and equipment for glass industry (including daily glass machinery); electromechanical machines for chemical industry; handling machines, automatic [manipulators]; industrial robots; electron industry equipment; gas separation equipment; engines, other than for land vehicles; pumps [parts of machines, engines or motors]; control mechanisms for machines, engines or motors; washing apparatus; 3d printers; labellers [machines]. Computer programs, recorded; computer programs, downloadable; computer software applications, downloadable; humanoid robots with artificial intelligence for use in scientific research; downloadable mobile applications; mechanisms for coin-operated apparatus; automatic measuring device; gear measuring tool; network communication equipment; cameras [photography]; surveying apparatus and instruments; chemistry apparatus and instruments; laboratory robots; microscopes; remote control apparatus; electric installations for the remote control of industrial operations. Technological research; scientific research; scientific laboratory services; chemical research; biochemical research and analysis; biological research; bacteriological research; functional testing of equipment and instruments; product testing; industrial design; computer software design; software design and development; Information Technology [IT] consultancy; cloud computing; technical consulting in the field of artificial intelligence; research in the field of artificial intelligence; database design and development.

8.

PHARMAORYX

      
Serial Number 79344550
Status Registered
Filing Date 2022-03-10
Registration Date 2024-04-09
Owner Porton Pharma Solutions Ltd. (China)
NICE Classes  ?
  • 07 - Machines and machine tools
  • 09 - Scientific and electric apparatus and instruments
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Mixing machines; industrial electromechanical marking machine; packaging machines; Machines for mixing, cleaning and stirring liquids and powders for use in the pharmaceutical industry; disintegrators for chemical processing; rubber processing machine; machinery and equipment for glass industry, namely, daily glass machinery being glass-working machines; electromechanical machines for chemical industry in the nature of organic solvent and inorganic solvent preparation machines, electromechanical; material handling machines, automatic manipulators for transporting reagents and pharmaceuticals, mainly used in laboratories and factories; industrial robots; electron industry equipment being semiconductor manufacturing machines; gas separation equipment, namely, liquid separators; engines, other than for land vehicles; pumps as parts of machines, engines or motors; control mechanisms being hydraulic controls for machines, engines or motors; washing apparatus; 3d printers; labellers being electronic label printing machines for commercial use Computer programs, recorded for use in database management; computer programs, downloadable for use in database management; computer software applications, downloadable for use as a spreadsheet; humanoid robots with artificial intelligence for use in scientific research; downloadable mobile applications using artificial intelligence for home automation; mechanisms for coin-operated apparatus; automatic measuring device, namely, fluorometers; gear measuring tool in the nature of testing equipment for measuring the temperature, pressure, position or form of workpieces in a machine tool; network communication equipment being broadband wireless equipment, namely, telecommunications base station equipment for cellular and fixed networking and communications applications; cameras; surveying apparatus and instruments; chemistry apparatus and instruments being laboratory instrument for the identification and monitoring of chemical substances and compounds used in the manufacture of pharmaceutical preparations; laboratory robots; microscopes; remote control telemetering apparatus; electric installations for the remote control of industrial operations Technological research in the field of manufacturing processes; scientific research; scientific laboratory services; chemical research; biochemical research and analysis; biological research; bacteriological research; functional testing of equipment and instruments, namely, testing the functionality of apparatus and instruments related to Pharmaceuticals; product testing; industrial design; computer software design; software design and development; Information Technology [IT] consultancy; cloud computing consultation services; technical consulting in the field of artificial intelligence software customization; research in the field of artificial intelligence; database design and development

9.

ZYMNIC

      
Application Number 1649384
Status Registered
Filing Date 2021-12-17
Registration Date 2021-12-17
Owner Porton Pharma Solutions Ltd. (China)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 05 - Pharmaceutical, veterinary and sanitary products
  • 34 - Tobacco; smokers' articles

Goods & Services

Bases [chemical preparations]; salts [chemical preparations]; benzene derivatives; alkaloids; chemical additives to insecticides; chemical preparations for scientific purposes, other than for medical or veterinary use; chemical preparations for analyses in laboratories, other than for medical or veterinary purposes. Pharmaceutical preparations; chemico-pharmaceutical preparations; alkaloids for medical purposes; chemical preparations for medical purposes; tobacco-free cigarettes for medical purposes; nicotine chewing tablets for use as aids to stop smoking; nicotine patches for use as aids to stop smoking; nicotine gum for use as an aid to stop smoking; preparations for destroying noxious animals. Tobacco substitutes not for medical purpose; flavorings, other than essential oils, for use in electronic cigarettes; liquid nicotine solutions for use in electronic cigarettes; liquid nicotine alternatives for use in electronic cigarettes; liquid solutions for use in electronic cigarettes; electronic cigarettes.

10.

ENICO

      
Application Number 1649386
Status Registered
Filing Date 2021-12-17
Registration Date 2021-12-17
Owner Porton Pharma Solutions Ltd. (China)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 05 - Pharmaceutical, veterinary and sanitary products
  • 34 - Tobacco; smokers' articles

Goods & Services

Bases [chemical preparations]; salts [chemical preparations]; benzene derivatives; alkaloids; chemical additives to insecticides; chemical preparations for scientific purposes, other than for medical or veterinary use; chemical preparations for analyses in laboratories, other than for medical or veterinary purposes. Pharmaceutical preparations; chemico-pharmaceutical preparations; alkaloids for medical purposes; chemical preparations for medical purposes; tobacco-free cigarettes for medical purposes; nicotine chewing tablets for use as aids to stop smoking; nicotine patches for use as aids to stop smoking; nicotine gum for use as an aid to stop smoking; preparations for destroying noxious animals. Tobacco substitutes not for medical purpose; flavorings, other than essential oils, for use in electronic cigarettes; liquid nicotine solutions for use in electronic cigarettes; liquid nicotine alternatives for use in electronic cigarettes; liquid solutions for use in electronic cigarettes; electronic cigarettes.

11.

ZYMNIC

      
Serial Number 79335445
Status Registered
Filing Date 2021-12-17
Registration Date 2023-10-10
Owner Porton Pharma Solutions Ltd. (China)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 05 - Pharmaceutical, veterinary and sanitary products
  • 34 - Tobacco; smokers' articles

Goods & Services

Bases being chemical preparations for use in biochemical and clinical research; salts being chemical preparations in the nature of salts for industrial purposes; benzene derivatives in the nature of methyl benzene; alkaloids being alkalies; chemical additives, namely, adjuvants for use in the manufacture of insecticides; chemical preparations for scientific purposes, other than for medical or veterinary use; chemical preparations for analyses in laboratories, other than for medical or veterinary purposes Pharmaceutical preparations for use in discouraging the smoking habit; chemico-pharmaceutical preparations, namely, preparations for nervous system-related diseases; alkaloids for medical purposes, namely, Nicotinic alkaloid preparations; chemical preparations for medical purposes, namely, for treating nicotine addiction; tobacco-free cigarettes for medical purposes, namely, for smoking cessation purposes; nicotine chewing tablets for use as aids to stop smoking; nicotine patches for use as aids to stop smoking; nicotine gum for use as an aid to stop smoking; preparations for destroying noxious animals Tobacco substitutes not for medical purpose; flavorings, other than essential oils, for use in electronic cigarettes; liquid nicotine solutions for use in electronic cigarettes; liquid nicotine alternatives being electronic cigarette liquid (e-liquid) comprised of glycerin for use in electronic cigarettes; liquid solutions being electronic cigarette liquid (e-liquid) comprised of propylene glycol for use in electronic cigarettes; electronic cigarettes

12.

ENICO

      
Serial Number 79335446
Status Registered
Filing Date 2021-12-17
Registration Date 2023-10-24
Owner Porton Pharma Solutions Ltd. (China)
NICE Classes  ?
  • 01 - Chemical and biological materials for industrial, scientific and agricultural use
  • 05 - Pharmaceutical, veterinary and sanitary products
  • 34 - Tobacco; smokers' articles

Goods & Services

Bases being chemical preparations for use in biochemical and clinical research; salts being chemical preparations in the nature of salts for industrial purposes; benzene derivatives in the nature of methyl benzene; alkaloids being alkalies; chemical additives, namely, adjuvants for use in the manufacture of insecticides alkaloids for medical purposes, namely, Nicotinic alkaloid preparations; tobacco-free cigarettes for medical purposes, namely, for smoking cessation purposes; nicotine chewing tablets for use as aids to stop smoking; nicotine patches for use as aids to stop smoking; nicotine gum for use as an aid to stop smoking; preparations for destroying noxious animals Tobacco substitutes not for medical purpose; flavorings, other than essential oils, for use in electronic cigarettes; liquid nicotine solutions for use in electronic cigarettes; liquid nicotine alternatives being electronic cigarette liquid (e-liquid) comprised of glycerin for use in electronic cigarettes; liquid solutions being electronic cigarette liquid (e-liquid) comprised of propylene glycol for use in electronic cigarettes; electronic cigarettes

13.

METHOD FOR SYNTHESIZING (S)-NICOTINE

      
Application Number CN2021079492
Publication Number 2021/180019
Status In Force
Filing Date 2021-03-08
Publication Date 2021-09-16
Owner PORTON PHARMA SOLUTIONS LTD (China)
Inventor
  • Lin, Wenqing
  • Zheng, Hongjie
  • Chen, Zengcong
  • Zhu, Jianping
  • Yue, Yongtang
  • Hu, Jicheng
  • Wang, Jianchong
  • Li, Lingyu
  • Liu, Xiaobo

Abstract

Provided is a method for synthesizing (S)-nicotine, comprising: under the condition of a coenzyme circulation system, by using a coenzyme as a hydrogen donor, and by using imine reductase as a catalyst, catalyzing and reducing myosmine to (S)-nornicotine, and then subjecting (S)-nornicotine to a methylation reaction so as to obtain (S)-nicotine.

IPC Classes  ?

  • C12P 17/16 - Preparation of heterocyclic carbon compounds with only O, N, S, Se, or Te as ring hetero atoms containing two or more hetero rings
  • C07D 401/04 - 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 directly linked by a ring-member-to-ring- member bond

14.

Method of preparation of (1R,3S)-3-amino-1-cyclopentanol and salt thereof

      
Application Number 17163532
Grant Number 11459291
Status In Force
Filing Date 2021-01-31
First Publication Date 2021-05-20
Grant Date 2022-10-04
Owner PORTON PHARMA SOLUTIONS LTD. (China)
Inventor
  • Lin, Wenqing
  • Zheng, Hongjie
  • Zhu, Jianping
  • Zhang, Yong
  • Wang, Jianchong

Abstract

Provided is a method of preparation of (1R, 3S)-3-amino-1-cyclopentanol, the method including: contacting N-acylhydroxyamine and cyclopentadiene for an asymmetric cycloaddition, to yield a first intermediate I; hydrogenating the first intermediate I to yield a second intermediate II; hydrolyzing, ammonolyzing, hydrazinolyzing, or alcoholyzing an amido bond of the second intermediate II to yield a third intermediate III; and hydrogenating the third intermediate III to yield (1R, 3S)-3-amino-1-cyclopentanol.

IPC Classes  ?

  • C07C 213/08 - Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton by reactions not involving the formation of amino groups, hydroxy groups or etherified or esterified hydroxy groups
  • C07C 215/44 - Compounds containing amino and hydroxy groups bound to the same carbon skeleton having amino groups or hydroxy groups bound to carbon atoms of rings other than six-membered aromatic rings of the same carbon skeleton bound to carbon atoms of the same ring or condensed ring system

15.

PREPARATION METHOD FOR (1R,3S)-3-AMINO-1-CYCLOPENTANOL AND SALTS THEREOF

      
Document Number 03108358
Status In Force
Filing Date 2019-07-26
Open to Public Date 2020-03-05
Grant Date 2023-08-01
Owner PORTON PHARMA SOLUTIONS LTD. (China)
Inventor
  • Lin, Wenqing
  • Zheng, Hongjie
  • Zhu, Jianping
  • Zhang, Yong
  • Wang, Jianchong

Abstract

A preparation method for (1R,3S)-3-amino-1-cyclopentanol and salts thereof, relating to the field of organic synthesis, wherein the (1R,3S)-3-amino-1-cyclopentanol undergoes an asymmetric cycloaddition reaction with cyclopentadiene by using a chiral source in an N-acylhydroxylamine compound as a chiral inducer, to build two chiral centers of a target product. The N-acylhydroxylamine compound can be obtained by means of a one-step ammonolysis reaction between a chiral hydroxy acid ester and hydroxylamine. The raw materials of this route are widely available, cheap and easy to get, and therefore, the costs of the raw materials can be effectively reduced. The preparation method features a reasonable route, simple operation and mild reaction conditions, and thus has high atom economy and low production costs. Moreover, said method has good stereoselectivity, and the product prepared thereby has high optical purity and stable quality, and thus is suitable for large-scale industrial production.

IPC Classes  ?

  • C07C 213/00 - Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton
  • C07C 215/44 - Compounds containing amino and hydroxy groups bound to the same carbon skeleton having amino groups or hydroxy groups bound to carbon atoms of rings other than six-membered aromatic rings of the same carbon skeleton bound to carbon atoms of the same ring or condensed ring system
  • C07D 261/20 - Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings condensed with carbocyclic rings or ring systems

16.

PREPARATION METHOD FOR (1R,3S)-3-AMINO-1-CYCLOPENTANOL AND SALTS THEREOF

      
Application Number CN2019097921
Publication Number 2020/042841
Status In Force
Filing Date 2019-07-26
Publication Date 2020-03-05
Owner PORTON PHARMA SOLUTIONS LTD. (China)
Inventor
  • Lin, Wenqing
  • Zheng, Hongjie
  • Zhu, Jianping
  • Zhang, Yong
  • Wang, Jianchong

Abstract

A preparation method for (1R,3S)-3-amino-1-cyclopentanol and salts thereof, relating to the field of organic synthesis, wherein the (1R,3S)-3-amino-1-cyclopentanol undergoes an asymmetric cycloaddition reaction with cyclopentadiene by using a chiral source in an N-acylhydroxylamine compound as a chiral inducer, to build two chiral centers of a target product. The N-acylhydroxylamine compound can be obtained by means of a one-step ammonolysis reaction between a chiral hydroxy acid ester and hydroxylamine. The raw materials of this route are widely available, cheap and easy to get, and therefore, the costs of the raw materials can be effectively reduced. The preparation method features a reasonable route, simple operation and mild reaction conditions, and thus has high atom economy and low production costs. Moreover, said method has good stereoselectivity, and the product prepared thereby has high optical purity and stable quality, and thus is suitable for large-scale industrial production.

IPC Classes  ?

  • C07C 213/00 - Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton
  • C07C 215/44 - Compounds containing amino and hydroxy groups bound to the same carbon skeleton having amino groups or hydroxy groups bound to carbon atoms of rings other than six-membered aromatic rings of the same carbon skeleton bound to carbon atoms of the same ring or condensed ring system
  • C07D 261/20 - Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings condensed with carbocyclic rings or ring systems

17.

PORTON

      
Serial Number 77107877
Status Registered
Filing Date 2007-02-14
Registration Date 2008-12-02
Owner PORTON PHARMA SOLUTIONS LTD. (China)
NICE Classes  ? 01 - Chemical and biological materials for industrial, scientific and agricultural use

Goods & Services

chemicals for industrial purposes; pharmaceutical intermediates for use in the manufacture of pharmaceuticals; chemical preparations for scientific analyses in laboratories other than for medical or veterinary purposes; chemical preservatives for use in the production of a wide variety of chemicals