Dihydropyridine Neuropeptide Y Y1 Receptor Antagonists
摘要:
Dihydropyridine 5a was found to be an inhibitor of neuropeptide Y-1 binding in a high throughput I-125-PYY screening assay. Structure-activity studies around certain portions of the dihydropyridine chemotype identified BMS-193885 (6e) as a potent and selective Y-1 receptor antagonist. In a forskolin-stimulated c-AMP production assay using CHO cells expressing the human Y-1 receptor, 6e demonstrated full functional antagonism (K-b = 4.5 nM). Compound 6e inhibited NPY-induced feeding in satiated rats when dosed at 3.0 and 10.0 mg/kg (ip), and also decreased spontaneous overnight food consumption in rats at doses of 10 and 20 mg/kg (ip). (C) 2002 Elsevier Science Ltd. All rights reserved.
Stereochemical Requirements for the Mineralocorticoid Receptor Antagonist Activity of Dihydropyridines
作者:Graciela B. Arhancet、Scott S. Woodard、Jessica D. Dietz、Danny J. Garland、Grace M. Wagner、Kaliappan Iyanar、Joe T. Collins、James R. Blinn、Randal E. Numann、Xiao Hu、Horng-Chih Huang
DOI:10.1021/jm1002827
日期:2010.5.27
A number of known 1,4-dihydropyridine CCBs were identified as having comparable potency to the steroidal MR antagonist eplerenone. Chiral resolution of mebudipine revealed that MR and CCB activity reside in opposite enantiomers. Small molecule X-ray crystal structures showed that the C4 stereochemistry of optimized selective MR analogues, e.g. 5, is consistent with MR-active mebudipine. Molecular modeling supports a binding pose consistent with that previously proposed for DHP diesters.