supported by Nationa l973 Projects from the Ministry of Science and Technology of China(Grant No.2010CB735601 and 2012CB724501)
A series of (4-(2,4,5-trifluorophenyl)piperazin-1-yl) methanone derivatives 9a–k as potential dipeptidyl peptidase-4 (DPP-4) inhibitors were synthesized by microwave assisted nucleophilic substitution of 1,2,4,...