- 专利标题： Process for preparation of grapiprant
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申请号： US16991323申请日： 2020-08-12
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公开(公告)号： US11254675B2公开(公告)日： 2022-02-22
- 发明人: Kumar Kamlesh Singh , Jitendra Maganbhai Gajera , Sumer Singh Chundavat , Dipak Ambalal Patel
- 申请人： CADILA HEALTHCARE LIMITED
- 申请人地址： IN 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 Gujarat
- 代理机构： Ladas & Parry LLP
- 优先权： IN201921032548 20190812,IN202021014512 20200401
- 主分类号： C07D471/06
- IPC分类号： C07D471/06 ; A61K31/64 ; C07D213/76
摘要：
The invention relates to process for the preparation of grapiprant and its intermediates thereof. The invention also relates to grapiprant having a purity 98% or more and compounds of Formula (A), (B), (C) and (D) in an amount of 0.5 or less, relative to grapiprant, by area percentage of HPLC. The invention also relates to an amorphous form of grapiprant and process for preparation thereof.
公开/授权文献
- US20210079000A1 PROCESS FOR PREPARATION OF GRAPIPRANT 公开/授权日：2021-03-18
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