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公开(公告)号:US06846932B1
公开(公告)日:2005-01-25
申请号:US10718267
申请日:2003-11-20
IPC分类号: C07D211/86
CPC分类号: C07D211/90
摘要: A process for the preparation of pharmaceutically acceptable salts of chiral Amlodipine namely S(−) Amlodipine and R(+) Amlodipine from without isolation of a free base from with optical purity rank between 96-99% is described in the present invention. The process comprises resolving RS amlodipine base using of L(+) or D(−) tartaric acid to obtain salt of corresponding to the acid used in ee rang from 96-99%.
摘要翻译: 在本发明中描述了制备手性氨氯地平的药学上可接受的盐即S( - )氨氯地平和R(+)氨氯地平的方法,该方法不分离游离碱与光学纯度等级在96-99%之间。 该方法包括使用L(+)或D( - )酒石酸分解RS氨氯地平碱,以获得与96-99%的所用酸相当的盐。