N-(aminoalkyl)-substituted(N or C alkyl)-aryl-4-(methylsylfonylamino)benzamides of the formula ##STR1## wherein R is C.sub.1 -C.sub.4 straight chain alkyl, one of R.sub.1, R.sub.2 and R.sub.3 is a phenyl or naphthyl group and the others are hydrogen, --NR.sub.4 R.sub.5 is a secondary or teritary amino group, X and X.sub.1 are hydrogen or alkyl and n is 0 or 1, are useful as antiarrhythmic agents in the treatment of cardiac arrhythmias especially as combination Class I/Class III agents.
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.
SANDBERG R.; SALAZAR C. R.; SJVEBERG B.; AKERMAN B., ACTA PHARM. SUEC., 1980, 17, NO 4, 183-188
作者:SANDBERG R.、 SALAZAR C. R.、 SJVEBERG B.、 AKERMAN B.
DOI:——
日期:——
MCMASTER P. D.; BYRNES E. W.; BLOCK A. J.; TENTHOREY P. A., J. MED. CHEM., 1981, 24, NO 1, 53-58
作者:MCMASTER P. D.、 BYRNES E. W.、 BLOCK A. J.、 TENTHOREY P. A.
DOI:——
日期:——
ARYL-N-AMINOALKYL-4-(SULFONAMIDO)BENZAMIDES, ANTIARRHYTMIC AGENTS AND COMPOSITIONS THEREOF