[EN] NEW CRYSTALLINE SALT FORMS OF A 5,6,7,8-TETRAHYDRO-1,2,4- TRIAZOLO[4,3-A]PYRAZINE DERIVATIVE [FR] NOUVELLES FORMES CRISTALLINES DE SELS D'UN DÉRIVÉ DE 5,6,7,8-TÉTRAHYDRO-1,2,4- TRIAZOLO[4,3-A]PYRAZINE
Processes for the preparation of sitagliptin and pharmaceutically acceptable salts thereof
申请人:Dr. Reddy's Laboratories Limited
公开号:US08309724B2
公开(公告)日:2012-11-13
There is provided an improved process for the preparation of Sitagliptin of Formula II by reduction of compound of Formula VIII to Formula IX followed by deprotection of Formula IX to afford Sitagliptin of Formula II.
[EN] PROCESSES FOR THE PREPARATION OF SITAGLIPTIN AND PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF<br/>[FR] PROCÉDÉS DE PRÉPARATION DE SITAGLIPTINE ET SELS PHARMACEUTIQUEMENT ACCEPTABLES DE CELLE-CI