发明申请
- 专利标题： Process for the Preparation of Letrozole
- 专利标题（中）： 来曲唑的制备方法
-
申请号： US12083665申请日： 2006-09-04
-
公开(公告)号： US20100190997A1公开(公告)日： 2010-07-29
- 发明人: Hussain Haider , Kirtipalsinh Saijansinh Solanki , Gautam Pal , Manoj Kumar Singh , Jay Shantilal Kothari , Virendra Kumar Agarwal
- 申请人： Hussain Haider , Kirtipalsinh Saijansinh Solanki , Gautam Pal , Manoj Kumar Singh , Jay Shantilal Kothari , Virendra Kumar Agarwal
- 优先权： IN1315-MUM-2005 20051020
- 国际申请： PCT/IN2006/000337 WO 20060904
- 主分类号： C07D249/08
- IPC分类号： C07D249/08
摘要：
The present invention relates to the process for the preparation of Letrozole free from its regioisomer (7) and other impurities by selective extraction of desired intermediate (3) using suitable solvent and mixture of solvents.
信息查询
