- 专利标题: Process for the preparation of optically active Beraprost
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申请号: US16091019申请日: 2017-03-30
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公开(公告)号: US10421737B2公开(公告)日: 2019-09-24
- 发明人: Irén Hortobágyi , István Lászlófi , Zsuzsanna Kardos , József Molnár , László Takács , Tamás Bán
- 申请人: CHINOIN GYÓGYSZER ÉS VEGYÉSZETI TERMÉKEK GYÁRA ZRT.
- 申请人地址: HU Budapest
- 专利权人: CHINOIN PHARMACEUTICAL AND CHEMICAL WORKS PRIVATE COMPANY LTD.
- 当前专利权人: CHINOIN PHARMACEUTICAL AND CHEMICAL WORKS PRIVATE COMPANY LTD.
- 当前专利权人地址: HU Budapest
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: HU1600232 20160405
- 国际申请: PCT/EP2017/057582 WO 20170330
- 国际公布: WO2017/174439 WO 20171012
- 主分类号: C07D307/93
- IPC分类号: C07D307/93
摘要:
The invention provides a new process for the preparation of optically active Beraprost of formula (I) starting from racemic Beraprost alkyl ester through hydrolysis, enantiomer esterification, preparation of diacyl-Beraprost ester diastereomers and their separation and hydrolysis.
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