WO1998032736A1 - Procede de production de derives d'acide benzylsuccinique - Google Patents
Procede de production de derives d'acide benzylsuccinique Download PDFInfo
- Publication number
- WO1998032736A1 WO1998032736A1 PCT/JP1998/000231 JP9800231W WO9832736A1 WO 1998032736 A1 WO1998032736 A1 WO 1998032736A1 JP 9800231 W JP9800231 W JP 9800231W WO 9832736 A1 WO9832736 A1 WO 9832736A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carbon atom
- benzyl
- formula
- salt
- succinic acid
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/44—Iso-indoles; Hydrogenated iso-indoles
Definitions
- the present invention has an excellent blood glucose lowering effect, and is useful as a drug for treating diabetes.
- X in the formula is a hydroxyl group, a chlorine atom or a bromine atom
- the benzyl succinic acid derivative represented by the formula (I) obtained by the above production method has a low melting point and is difficult to purify as it is, a method of purifying it with a salt such as a calcium salt has been attempted.
- the present invention relates to the use of a benzyl ester derivative represented by the above formula (I) in the production of a benzyl succinic acid derivative represented by the formula (I) and a salt thereof.
- the present invention provides a benzyl succinic acid derivative represented by the formula (I), which is obtained by debenzylating the benzyl ester derivative represented by the formula (m) and then converting it to a salt, if desired. And its salts.
- Halogenating agents such as pentachloride ichlin, phosphorus oxychloride, etc., N, N'-dicyclohexyl carbodiimide, ⁇ , ⁇ '-carbonyldiimidazole, N, N'-disuccinimidyl force, 1-ethyl —
- condensing agents used in ordinary peptide synthesis such as 3- (3-dimethylaminopropyl) carbodiimide hydrochloride.
- recrystallization solvents include organic solvents such as ethyl acetate and the like.
- Organic mixed solvents such as ethyl acetate and hexane can be exemplified.
- Examples of the salt of benzylsuccinic acid represented by the formula (I) include pharmacologically acceptable salts such as calcium salt, sodium salt, potassium salt and L-arginine salt.
- the salt can be easily produced from the benzylsuccinic acid represented by the formula (I) according to a conventional method.
- the benzyl succinic acid represented by the formula (I) and a salt thereof may form a solvate with a pharmaceutically acceptable solvent such as water and ethanol.
- the preferred embodiment of the present invention is as follows.
- the benzyl succinic acid derivative represented by the above formula (I) is dissolved in ethyl acetate, about 2 moles of potassium carbonate is added, and about 1.2 moles of benzyl bromide or benzyl chloride is added with stirring. Heat and stir. After allowing to cool, ice water is added to separate the organic layer, which is washed with saturated saline, dried over anhydrous magnesium sulfate, and the solvent is distilled off under reduced pressure. The obtained residue is crystallized from ethyl acetate-hexane, and then recrystallized from ethyl acetate.
- the benzyl ester derivative of the formula (m) has physical properties that are very suitable for the purification operation by recrystallization in terms of its crystallinity, dissolution ⁇ t, and the like. It is an excellent production method which enables stable supply of the benzyl succinic acid derivative of the above formula (I) and its salt with high purity in production. 0 BEST MODE FOR CARRYING OUT THE INVENTION
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Indole Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU55759/98A AU5575998A (en) | 1997-01-29 | 1998-01-22 | Process for producing benzylsuccinic acid derivatives |
EP98900692A EP0967204A4 (en) | 1997-01-29 | 1998-01-22 | METHOD FOR THE PRODUCTION OF BENZYL succinic acid ester derivatives |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9/50839 | 1997-01-29 | ||
JP5083997 | 1997-01-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998032736A1 true WO1998032736A1 (fr) | 1998-07-30 |
Family
ID=12869923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/000231 WO1998032736A1 (fr) | 1997-01-29 | 1998-01-22 | Procede de production de derives d'acide benzylsuccinique |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0967204A4 (ja) |
AU (1) | AU5575998A (ja) |
WO (1) | WO1998032736A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009047797A2 (en) * | 2007-10-08 | 2009-04-16 | Ind-Swift Laboratories Limited | Process for the preparation of perhydroisoindole derivative |
KR20110074614A (ko) * | 2009-03-19 | 2011-06-30 | 고쿠리츠 다이가쿠 호진 교토 다이가쿠 | 췌도 이미징용 분자 프로브 전구체 및 그 사용 |
CN101973926B (zh) * | 2010-11-05 | 2012-09-19 | 威海迪素制药有限公司 | R-米格列奈钙的制备方法 |
KR101327866B1 (ko) * | 2011-10-27 | 2013-11-11 | 주식회사 메디켐코리아 | 미티글리나이드 칼슘염의 개선된 제조방법 |
CN109081805A (zh) * | 2018-08-24 | 2018-12-25 | 江西济民可信药业有限公司 | 一种改进的米格列奈钙的制备方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04330055A (ja) * | 1991-03-30 | 1992-11-18 | Kissei Pharmaceut Co Ltd | 新規なベンジリデンコハク酸誘導体 |
JPH04356459A (ja) * | 1991-04-25 | 1992-12-10 | Kissei Pharmaceut Co Ltd | 新規なベンジルコハク酸誘導体 |
JPH06340623A (ja) * | 1993-05-28 | 1994-12-13 | Kissei Pharmaceut Co Ltd | ベンジルコハク酸誘導体の製造方法およびその製造中間体 |
JPH06340622A (ja) * | 1993-05-28 | 1994-12-13 | Kissei Pharmaceut Co Ltd | ベンジルコハク酸誘導体の製造方法およびその製造中間体 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU654331B2 (en) * | 1991-03-30 | 1994-11-03 | Kissei Pharmaceutical Co. Ltd. | Succinic acid compounds |
-
1998
- 1998-01-22 WO PCT/JP1998/000231 patent/WO1998032736A1/ja not_active Application Discontinuation
- 1998-01-22 EP EP98900692A patent/EP0967204A4/en not_active Withdrawn
- 1998-01-22 AU AU55759/98A patent/AU5575998A/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04330055A (ja) * | 1991-03-30 | 1992-11-18 | Kissei Pharmaceut Co Ltd | 新規なベンジリデンコハク酸誘導体 |
JPH04356459A (ja) * | 1991-04-25 | 1992-12-10 | Kissei Pharmaceut Co Ltd | 新規なベンジルコハク酸誘導体 |
JPH06340623A (ja) * | 1993-05-28 | 1994-12-13 | Kissei Pharmaceut Co Ltd | ベンジルコハク酸誘導体の製造方法およびその製造中間体 |
JPH06340622A (ja) * | 1993-05-28 | 1994-12-13 | Kissei Pharmaceut Co Ltd | ベンジルコハク酸誘導体の製造方法およびその製造中間体 |
Non-Patent Citations (1)
Title |
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See also references of EP0967204A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP0967204A4 (en) | 2000-11-29 |
AU5575998A (en) | 1998-08-18 |
EP0967204A1 (en) | 1999-12-29 |
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