公开(公告)号：US20170260149A1

公开(公告)日：2017-09-14

申请号：US15510147

申请日：2014-09-09

申请人： G. Pratap REDDY

发明人： G. Pratap REDDY ,  Venkataiah SANKU

IPC分类号： C07D265/36

CPC分类号： C07D265/36 ,  Y02P20/55

摘要： The present invention relates to a process for preparing olodaterol and intermediates thereof. The process comprises of forming compound of Formula 1 by reacting compound of Formula 2 or its acid salt with compound of Formula 3 in the presence of an organic solvent to obtain compound of Formula 4. Protecting groups are removed from compound of Formula 4 in the presence of a suitable solvent to form compound of Formula 1.

公开(公告)号：US20180215714A1

公开(公告)日：2018-08-02

申请号：US15505760

申请日：2015-08-20

申请人： G. Pratap REDDY

发明人： G. Pratap REDDY ,  Venkataiah SUNKU ,  Sunkaraneni Suresh BABU

IPC分类号： C07D215/26 ,  C07C45/46 ,  C07B35/02 ,  C07B41/06

CPC分类号： C07D215/26 ,  C07B35/02 ,  C07B41/06 ,  C07C17/16 ,  C07C17/354 ,  C07C45/46 ,  Y02P20/55 ,  C07C49/80 ,  C07C23/18

摘要： The present invention relates to a process for preparing indacaterol or salts thereof. The process comprises of forming compound of Formula 1 by reacting compound of Formula 2 and compound of Formula 3 in the presence of a solvent to Form compound of Formula 4, which on removal of the protecting groups forms compound of Formula 1.