PHARMACEUTICAL COMPOSITIONS AS INHIBITORS OF DIPEPTIDYL PEPTIDASE-IV (DPP-IV)

摘要

The present invention relates to compounds of formula I which inhibit dipeptidyl peptidase IV (DPP-IV) and are useful for the prevention or treatment of diabetes, especially type II diabetes, as well as hyperglycemia , Syndrome X, hyperinsulinemia, obesity, atherosclerosis, and various immunomodulatory diseases. Or pharmaceutically acceptable salts or prodrugs thereof, wherein X,R,R1,R2 and R3 have the definitions given in the description.