专利检索 ap:("Lee Pharma Ltd.") AND inv:"GUDA, Madhukar Reddy" 第 1 页

1.

发明授权
NOVEL PROCESS FOR THE PREPARATION OF DIPEPTIDYL PEPTIDASE-4 (DPP-4) ENZYME INHIBITOR 有权

公开(公告)号：EP3242879B1

公开(公告)日：2019-12-11

申请号：EP15876740.0

申请日：2015-02-20

申请人： Lee Pharma Ltd.

发明人： ALLA, Venkat Reddy , ALLA, Raghumitra , MALLEPALLI, Srinivas Reddy , NANDAM, Suresh Babu , GUDA, Madhukar Reddy , ALLURI, Raja Reddy

IPC分类号： C07D487/04 , C07C235/74

2.

发明公开
NOVEL PROCESS FOR THE PREPARATION OF DIPEPTIDYL PEPTIDASE-4 (DPP-4) ENZYME INHIBITOR 审中-公开
标题翻译：制备二肽基肽酶-4（DPP-4）酶抑制剂的新方法

公开(公告)号：EP3242879A1

公开(公告)日：2017-11-15

申请号：EP15876740.0

申请日：2015-02-20

申请人： Lee Pharma Ltd.

发明人： ALLA, Venkat Reddy , ALLA, Raghumitra , MALLEPALLI, Srinivas Reddy , NANDAM, Suresh Babu , GUDA, Madhukar Reddy , ALLURI, Raja Reddy

IPC分类号： C07D487/04 , C07D487/02 , A61P3/10

摘要： The present invention relates to a novel and improved process for the preparation of Sitagliptin of Formula (I) and its pharmaceutically acceptable salts. The present invention also relates to novel intermediates and process for the preparation of intermediates used in the preparation of Sitagliptin.