Synthesis and Structure−Activity Relationships of a Novel Series of Tricyclic Dihydropyridine-Based KATP Openers That Potently Inhibit Bladder Contractions in Vitro
摘要:
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.
Synthesis and Structure−Activity Relationships of a Novel Series of Tricyclic Dihydropyridine-Based KATP Openers That Potently Inhibit Bladder Contractions in Vitro
摘要:
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.
Synthesis and Structure−Activity Relationships of a Novel Series of 2,3,5,6,7,9-Hexahydrothieno[3,2-<i>b</i>]quinolin-8(4<i>H</i>)-one 1,1-Dioxide K<sub>ATP</sub> Channel Openers: Discovery of (−)-(9<i>S</i>)-9-(3-Bromo-4-fluorophenyl)-2,3,5,6,7,9- hexahydrothieno[3,2-<i>b</i>]quinolin-8(4<i>H</i>)-one 1,1-Dioxide (A-278637), a Potent K<sub>ATP</sub> Opener That Selectively Inhibits Spontaneous Bladder Contractions
作者:William A. Carroll、Robert J. Altenbach、Hao Bai、Jorge D. Brioni、Michael E. Brune、Steven A. Buckner、Christopher Cassidy、Yiyuan Chen、Michael J. Coghlan、Anthony V. Daza、Irene Drizin、Thomas A. Fey、Michael Fitzgerald、Murali Gopalakrishnan、Robert J. Gregg、Rodger F. Henry、Mark W. Holladay、Linda L. King、Michael E. Kort、Philip R. Kym、Ivan Milicic、Rui Tang、Sean C. Turner、Kristi L. Whiteaker、Lin Yi、Henry Zhang、James P. Sullivan
DOI:10.1021/jm030356w
日期:2004.6.1
Structure-activity relationships were investigated on a novel series of sulfonyldihydropyridine-containing K-ATP openers. Ring sizes, absolute stereochemistry, and aromatic substitution 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 select group of compounds. All compounds studied showed greater potency to inhibit spontaneous bladder contractions relative to their potencies to inhibit contractions elicited by electrical stimulation. In an anesthetized pig model of myogenic bladder overactivity, compound 14 and (-)-cromakalim 1 were found to inhibit spontaneous bladder contractions in vivo at plasma concentrations lower than those that affected hemodynamic parameters. Compound 14 showed approximately 5-fold greater selectivity than I in vivo and supports the concept that bladder-selective K-ATP channel openers may have utility in the treatment of overactive bladder.
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.