Synthesis, biological evaluation, and pharmacokinetic study of prolyl-1-piperazinylacetic acid and prolyl-4-piperidinylacetic acid derivatives as VLA-4 antagonists
作者:Jun Chiba、Gensuke Takayama、Tohru Takashi、Mika Yokoyama、Atsushi Nakayama、John J. Baldwin、Edward McDonald、Kevin J. Moriarty、Christopher R. Sarko、Kurt W. Saionz、Robert Swanson、Zahid Hussain、Angela Wong、Nobuo Machinaga
DOI:10.1016/j.bmc.2005.11.058
日期:2006.4
A series of prolyl-1-piperazinylacetic acid and prolyl-4-piperidinylacetic acid derivatives were synthesized and evaluated for their activity as VLA-4 antagonists. Of 22 compounds synthesized, 19 compounds showed potent activity with low nanomolar IC50 values. In addition, the representative compounds 11o and 11p with a hydroxy group in the pyrrolidine ring showed moderate plasma clearance in rats (11o, 30 ml/min/kg and 11p, 21 ml/min/kg) and in dogs (11o, 12ml/min/kg and 11p 9ml/min/kg). (c) 2005 Elsevier Ltd. All rights reserved.