Synthesis and Structure−Activity Relationships of a Novel Series of Tricyclic Dihydropyridine-Based K<sub>ATP</sub> Openers That Potently Inhibit Bladder Contractions in Vitro
作者:William A. Carroll、Konstantinos A. Agrios、Robert J. Altenbach、Steven A. Buckner、Yiyuan Chen、Michael J. Coghlan、Anthony V. Daza、Irene Drizin、Murali Gopalakrishnan、Rodger F. Henry、Michael E. Kort、Philip R. Kym、Ivan Milicic、Jamie C. Smith、Rui Tang、Sean C. Turner、Kristi L. Whiteaker、Henry Zhang、James P. Sullivan
DOI:10.1021/jm030357o
日期:2004.6.1
Structure-activity relationships were investigated on a novel series of tricyclic dihydropyridine-containing K-ATP openers. This diverse group of analogues, comprising a variety of heterocyclic rings fused to the dihydropyridine nucleus, was designed to determine the influence on activity of hydrogen-bond-donating and -accepting groups and their stereochemical disposition. Compounds were evaluated for K-ATP activity in guinea pig bladder cells using a fluorescence-based membrane potential assay and in a pig bladder strip assay. The inhibition of spontaneous bladder contractions in vitro was also examined for a subset of compounds. All compounds studied showed greater potency to inhibit spontaneous bladder contractions relative to their potencies to inhibit contractions elicited by electrical stimulation.