Hybrid cholecystokinin-A antagonists based on molecular modeling of lorglumide and L-364,718
作者:Arie Van der Bent、Armand G. S. Blommaert、Caroline T. M. Melman、Adriaan P. IJzerman、Ineke Van Wijngaarden、Willem Soudijn
DOI:10.1021/jm00084a009
日期:1992.3
A series of novel nonpeptide cholecystokinin-A (CCK-A) antagonists have been synthesized. Designed on the basis of the structural homology between lorglumide and L-364,718, as investigated with molecular modeling, these compounds constitute a link between the N-acylglutamic acid and 3-amino-5-phenyl-1,4-benzodiazepin-2-one derived antagonists. The prepared compounds were tested in vitro as antagonists of the binding of [H-3]-(+/-)-L-364,718 and [H-3]-CCK-8(S) to rat pancreas and guinea pig brain membranes, respectively. All compounds proved to be selective for the (peripheral) CCK-A receptor, the most potent analogue, 6, having a K(i) value of 90 nM. The structure-activity profile of the series of hybrid compounds relates closest to that of the N-acylglutamic acid derived antagonists.