Stephen Benedict David WINTER,Monica BENITO VELEZ,Ernesto DURAN LOPEZ
申请号：
US13433629
公开号：
US20120184558A1
申请日:
2012.03.29
申请国别(地区):
US
年份:
2012
代理人:
摘要：
This invention provides novel crystalline acid salt forms of 7-[(3R)-3-amino-1-oxo-4-(2,4,5-trifluorophenyl)butyl]-5,6,7,8-tetrahydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3-a]pyrazine, i.e. sitagliptin, to processes for their preparation and isolation, and to pharmaceutical compositions comprising the same.
