Synthesis and cardiac electrophysiological activity of aryl-substituted derivatives of the class III antiarrhythmic agent sematilide. Potential class I/III agents
摘要:
Twelve novel derivatives of the selective class III antiarrhythmic agent sematilide were prepared in an attempt to incorporate both class I and class III electrophysiological properties into a single molecule. Electrophysiological activity was determined by standard microelectrode techniques in canine cardiac Purkinje fibers. Initial assessment of class I efficacy was carried out in a ouabain-induced arrhythmia model in guinea pigs. All of the compounds prolonged action potential duration in Purkinje fibers (class III activity), and three were active against ouabain-induced arrhythmias (class I activity). Selected compounds were evaluated further in dogs for efficacy against arrhythmias occurring 24 h following coronary ligation (automatic arrhythmias) and induced by using programmed electrical stimulation techniques (reentrant arrhythmias). The most effective compounds from the series are 3g and -j, which were effective in both canine models. Molecular modeling and structure-activity relationships are discussed.
ARYL-N-AMINOALKYL-4-(SULFONAMIDO)BENZAMIDES, ANTIARRHYTMIC AGENTS AND COMPOSITIONS THEREOF
申请人:SCHERING AKTIENGESELLSCHAFT
公开号:EP0324791A1
公开(公告)日:1989-07-26
US4920116A
申请人:——
公开号:US4920116A
公开(公告)日:1990-04-24
[EN] ARYL-N-AMINOALKYL-4-(SULFONAMIDO)BENZAMIDES, ANTIARRHYTMIC AGENTS AND COMPOSITIONS THEREOF
申请人:SCHERING AKTIENGESELLSCHAFT
公开号:WO1988002362A1
公开(公告)日:1988-04-07
(EN) Novel aryl-N-aminoalkyl-4-(sulfonamido)benzamides are described as useful antiarrhytmic agents. Their use in the treatment of cardiac arrhytmias especially as combination class I/class III agents is described. Pharmaceutical formulations containing such compounds are also disclosed.(FR) Les aryl-N-aminoalkyl-4-(sulfonamido)benzamides décrites sont utiles en tant qu'agents antiarythmiques. Leur utilisation dans le traitement d'arrythmie cardiaque, spécialement comme agents de la combinaison de la classe I et de la classe III est décrite. Des compositions pharmaceutiques contenant de tels composés sont également décrites.
Synthesis and cardiac electrophysiological activity of aryl-substituted derivatives of the class III antiarrhythmic agent sematilide. Potential class I/III agents
作者:Gary B. Phillips、Thomas K. Morgan、Klaus Nickisch、Joan M. Lind、Robert P. Gomez、Ronald A. Wohl、Thomas M. Argentieri、Mark E. Sullivan
DOI:10.1021/jm00164a025
日期:1990.2
Twelve novel derivatives of the selective class III antiarrhythmic agent sematilide were prepared in an attempt to incorporate both class I and class III electrophysiological properties into a single molecule. Electrophysiological activity was determined by standard microelectrode techniques in canine cardiac Purkinje fibers. Initial assessment of class I efficacy was carried out in a ouabain-induced arrhythmia model in guinea pigs. All of the compounds prolonged action potential duration in Purkinje fibers (class III activity), and three were active against ouabain-induced arrhythmias (class I activity). Selected compounds were evaluated further in dogs for efficacy against arrhythmias occurring 24 h following coronary ligation (automatic arrhythmias) and induced by using programmed electrical stimulation techniques (reentrant arrhythmias). The most effective compounds from the series are 3g and -j, which were effective in both canine models. Molecular modeling and structure-activity relationships are discussed.