METHOD FOR PREPARING SITAGLIPTIN AND AMINE SALT INTERMEDIATES USED THEREIN

摘要

The present invention relates to a method for preparing sitagliptin by using an amine salt of (3R)-3-azido-4-(2,4,5-trifluorophenyl)-butyric acid (formula (V)) in a high yield and purity, and amine salt intermediates used therein.