Tetrahydronaphthalene-derived amino alcohols and amino ketones as potent and selective inhibitors of the delayed rectifier potassium current IKs |
| |
Authors: | Ahmad Saleem Doweyko Lidia Ashfaq Aaila Ferrara Francis N Bisaha Sharon N Schmidt Joan B DiMarco John Conder Mary Lee Jenkins-West Tonya Normandin Diane E Russell Anita D Smith Mark A Levesque Paul C Lodge Nicholas J Lloyd John Stein Philip D Atwal Karnail S |
| |
Institution: | Bristol-Myers Squibb Pharmaceutical Research Institute, PO Box 4000, Princeton, NJ 08543, USA. saleem.ahmad@bms.com |
| |
Abstract: | Class III anti-arrhythmic drugs (e.g., dofetilide) prolong cardiac action potential duration (APD) by blocking the fast component of the delayed rectifier potassium current (I(Kr)). The block of I(Kr) can result in life threatening ventricular arrhythmias (i.e., torsades de pointes). Unlike I(Kr), the role of the slow component of the delayed rectifier potassium current (I(Ks)) becomes significant only at faster heart rate. Therefore selective blockers of I(Ks) could prolong APD with a reduced propensity to cause pro-arrhythmic side effects. This report describes structure-activity relationships (SARs) of a series of I(Ks) inhibitors derived from 6-alkoxytetralones with good in vitro activity (IC(50) > or =30 nM) and up to 40-fold I(Ks)/I(Kr) selectivity. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|