发明授权
- 专利标题： Process for the preparation of ambrisentan and novel intermediates thereof
- 专利标题（中）： 制备安立生坦及其新型中间体的方法
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申请号： US13382988申请日： 2010-07-12
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公开(公告)号： US08962832B2公开(公告)日： 2015-02-24
- 发明人: Kaushik Babubhai Sata , Bipin Pandey
- 申请人： Kaushik Babubhai Sata , Bipin Pandey
- 申请人地址： IN Ahmedabad, Gujarat
- 专利权人： Cadila Healthcare Limited
- 当前专利权人： Cadila Healthcare Limited
- 当前专利权人地址： IN Ahmedabad, Gujarat
- 代理机构： Nixon & Vanderhye P.C.
- 优先权： IN1626/MUM/2009 20090710; IN2233/MUM/2009 20090925; IN462/MUM/2010 20100219
- 国际申请： PCT/IN2010/000464 WO 20100712
- 国际公布： WO2011/004402 WO 20110113
- 主分类号： C07D239/34
- IPC分类号： C07D239/34
摘要：
The invention relates to improved processes for the preparation of ambrisentan. The invention also relates to a novel intermediate useful in the preparation of ambrisentan and a process for the preparation of the intermediate. The invention also relates to new polymorphic form of ambrisentan. In particular, it relates to a polymorphic form, designated as Form I of ambrisentan and a process for the preparation of the Form I.
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