| 摘要 |
Compounds according to formula (1), wherein R1 is H or CN, X1 is S, O, SO2; or CH2, X2 is CO, CH2 or a covalent bond, Het is a nitrogen-containing hetero-cycle and n is 1-5 are new. The compounds of the invention are inhibitors of dipeptidyl peptidase IV. Pharmaceutical compositions of the compounds of the invention, or pharmaceutically acceptable salts thereof, are useful in the treatment of, inter alia, type 2 diabetes. , (1) |
