401567-04-2Relevant articles and documents
Fused bicyclic heteroarylpiperazine-substituted l-prolylthiazolidines as highly potent DPP-4 inhibitors lacking the electrophilic nitrile group
Yoshida, Tomohiro,Akahoshi, Fumihiko,Sakashita, Hiroshi,Sonda, Shuji,Takeuchi, Masahiro,Tanaka, Yoshihito,Nabeno, Mika,Kishida, Hiroyuki,Miyaguchi, Ikuko,Hayashi, Yoshiharu
, p. 5033 - 5041 (2012/09/22)
Hypoglycemic agents with a mechanism of depeptidyl peptidase IV (DPP-4) inhibition are suitable for once daily oral dosing. It is difficult to strike a balance between inhibitory activity and duration of action in plasma for inhibitors bearing an electrophilic nitrile group. We explored fused bicyclic heteroarylpiperazine substituted at the γ-position of the proline structure in the investigation of l-prolylthiazolidines lacking the electrophilic nitrile. Among them, 2-trifluoroquinolyl compound 8g is the most potent, long-lasting DPP-4 inhibitor (IC50 = 0.37 nmol/L) with high selectivity against other related peptidases. X-ray crystal structure determination of 8g indicates that CH-π interactions generated between the quinolyl ring and the guanidinyl group of Arg358 enhances the DPP-4 inhibitory activity and selectivity.