[EN] A PREPARATION METHOD OF SITAGLIPTIN<br/>[FR] PROCÉDÉ DE PRÉPARATION DE SITAGLIPTINE
申请人:DAE WOONG PHARMA
公开号:WO2012148246A2
公开(公告)日:2012-11-01
The present invention relates to a preparation method of sitagliptin, and more particularly, to a method of preparing sitagliptin using L-aspartic acid having a (R)-beta amino acid structure by mild amide formation, by the use of industrially applicable halo isopropylmagnesium, and by removal of amine protecting group using Pd/C and H2 and carbonyl reduction using reducing agent.