Pitavastatin calcium and process for its preparation
    5.
    发明授权
    Pitavastatin calcium and process for its preparation 有权
    匹伐他汀钙及其制备方法

    公开(公告)号:US09034901B2

    公开(公告)日:2015-05-19

    申请号:US13818681

    申请日:2011-08-24

    IPC分类号: C07D215/14

    CPC分类号: C07D215/14

    摘要: The invention provides the process for the preparation of pitavastatin and its pharmaceutically acceptable salts thereof. In particular, the invention provides a process for the preparation of stable pitavastatin calcium in crystalline form having water content less than 5% wt/wt. The present invention also provides stable crystalline form of pitavastatin calcium substantially free from crystal Form-A and use thereof for pharmaceutical compositions.

    摘要翻译: 本发明提供了匹伐他汀及其药学上可接受的盐的制备方法。 特别地,本发明提供了制备水含量小于5%wt / wt的结晶形式的稳定匹伐他汀钙的方法。 本发明还提供基本上不含晶形A的匹伐他汀钙的稳定结晶形式及其用于药物组合物的用途。

    Process for the manufacture of pharmaceutical grade ranitidine base
    7.
    发明授权
    Process for the manufacture of pharmaceutical grade ranitidine base 失效
    制造药物级雷尼替丁碱的方法

    公开(公告)号:US5696275A

    公开(公告)日:1997-12-09

    申请号:US265308

    申请日:1994-06-24

    IPC分类号: C07D307/52

    CPC分类号: C07D307/52

    摘要: A process for the manufacture of pharmaceutical grade ranitidine base(N-�2-���5-(Dimethylamino)methyl!-2-furanyl!methyl!thio!ethyl-N'-methyl-2-nitro-1, 1-ethenediamine), is described. In-vitro and in-vivo pharmacological studies and acute toxicity studies indicate that it is as active and as safe as Form 2 ranitidine hydrochloride.

    摘要翻译: 制备药物级雷尼替丁碱(N- [2 - [[[5-(二甲基氨基)甲基] -2-呋喃基]甲基]硫基]乙基-N'-甲基-2-硝基-1,1- 乙烯二胺)。 体外和体内药理学研究和急性毒性研究表明,它与盐酸盐酸雷尼替丁的活性和安全性一样。

    PITAVASTATIN CALCIUM AND PROCESS FOR ITS PREPARATION
    8.
    发明申请
    PITAVASTATIN CALCIUM AND PROCESS FOR ITS PREPARATION 有权
    PITAVASTATIN钙及其制备方法

    公开(公告)号:US20140148481A1

    公开(公告)日:2014-05-29

    申请号:US13818681

    申请日:2011-08-24

    IPC分类号: C07D215/14

    CPC分类号: C07D215/14

    摘要: The invention provides the process for the preparation of pitavastatin and its pharmaceutically acceptable salts thereof. In particular, the invention provides a process for the preparation of stable pitavastatin calcium in crystalline form having water content less than 5% wt/wt. The present invention also provides stable crystalline form of pitavastatin calcium substantially free from crystal Form-A and use thereof for pharmaceutical compositions.

    摘要翻译: 本发明提供了匹伐他汀及其药学上可接受的盐的制备方法。 特别地,本发明提供了制备水含量小于5%wt / wt的结晶形式的稳定匹伐他汀钙的方法。 本发明还提供基本上不含晶形A的匹伐他汀钙的稳定结晶形式及其用于药物组合物的用途。