发明申请
US20070185337A1 Process for the preparation of optically pure 4-hydroxy-2-oxo-1-pyrrolidine acetamide
审中-公开
制备光学纯的4-羟基-2-氧代-1-吡咯烷乙酰胺的方法
- 专利标题: Process for the preparation of optically pure 4-hydroxy-2-oxo-1-pyrrolidine acetamide
- 专利标题(中): 制备光学纯的4-羟基-2-氧代-1-吡咯烷乙酰胺的方法
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申请号: US11596580申请日: 2005-05-25
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公开(公告)号: US20070185337A1公开(公告)日: 2007-08-09
- 发明人: Seong-Jin Kim , Chung-woo Lim , Chang Boo , Jung-hoon Oh , Ki Kim , Jae Lee , Duk Won
- 申请人: Seong-Jin Kim , Chung-woo Lim , Chang Boo , Jung-hoon Oh , Ki Kim , Jae Lee , Duk Won
- 申请人地址: KR Seoul 150-953 KR Daejeon 306-230
- 专利权人: AHN-GOOK PHARMACEUTICAL CO., LTD.,RSTECH CORPORATION
- 当前专利权人: AHN-GOOK PHARMACEUTICAL CO., LTD.,RSTECH CORPORATION
- 当前专利权人地址: KR Seoul 150-953 KR Daejeon 306-230
- 优先权: KR10-2004-0037320 20040525
- 国际申请: PCT/KR05/01535 WO 20050525
- 主分类号: C07D207/04
- IPC分类号: C07D207/04
摘要:
A process for the preparation of chiral 4-hydroxy-2-oxo-1-pyrrolidine acetamide includes adding sodium cyanide together with citric acid to a solution of chiral epichlorohydrin to obtain chiral 3-chloro-2-hydroxypropionitrile by ring opening reaction of the chiral epichlorohydrin, reacting the obtained product with an alcohol containing hydrochloride gas to obtain chiral 4-chloro-3-hydroxybutyric acid ester, and reacting the obtained product in a presence of a base with glycinamide or with glycine ester accompanied by ammonolysis with ammonia to produce the targeted chiral 4-hydroxy-2-oxo-1-pyrrolidine acetamide.
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