Cholecystokinin antagonists. Synthesis and biological evaluation of 3-substituted benzolactams
作者:W. H. Parsons、A. A. Patchett、M. K. Holloway、G. M. Smith、J. L. Davidson、V. J. Lotti、R. S. L. Chang
DOI:10.1021/jm00128a004
日期:1989.8
A series of 1,3-substituted benzolactams are reported that are potent nonpeptidal antagonists of the peptide hormone cholecystokinin (CCK). Design considerations were based upon the natural product CCK antagonist asperlicin and the potent benzodiazepine antagonist series exemplified by L-364,718 (1). Compound 19, the most potent compound in the benzolactam series, had an IC50 = 3 nM for inhibition
据报道,一系列的1,3-取代的苯并内酰胺类是肽激素胆囊收缩素(CCK)的有效非肽类拮抗剂。设计方面的考虑是基于天然产物CCK拮抗剂Asperlicin和有效的苯二氮卓类拮抗剂系列,例如L-364,718(1)。化合物19是苯并内酰胺系列中最有效的化合物,对于抑制125I-CCK-8与大鼠胰腺组织中CCK受体的结合,IC50 = 3 nM,发现其外消旋类似物8具有抑制CCK的口服活性。引起的小鼠胃排空,ED50 = 2.6 mg / kg po。讨论了环尺寸,位置1和3的取代以及位置3的立体化学的影响。化合物19和L-364的构象研究