- 专利标题： Process for the preparation of quinolone based compounds
-
申请号： US16421671申请日： 2019-05-24
-
公开(公告)号： US10899713B2公开(公告)日： 2021-01-26
- 发明人: Ranjit C. Desai , Rajiv Sharma , Vrajesh Pandya , Kalpesh Shah , Sunil Patel , Rakesh Chauhan , Ranjeet Nair , Vivek Joshi , Manoj Patel , Mrigendra Shukla
- 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： IN201821019633 20180525,IN201821049821 20181229
- 主分类号： C07D215/58
- IPC分类号： C07D215/58 ; C07D215/56
摘要：
The present invention relates to an improved process for the preparation of quinolone based compounds of general formula (I) using intermediate compound of general formula (XII). Invention also provides an improved process for the preparation of compound of formula (I-a) using intermediate compound of formula (XII-a) and some novel impurities generated during process. Compounds prepared using this process can be used to treat anemia.
信息查询
