4-Aroyl-1,3-dihydro-2H-imidazol-2-ones, a new class of cardiotonic agents
作者:Richard A. Schnettler、Richard C. Dage、J. Martin Grisar
DOI:10.1021/jm00354a017
日期:1982.12
A series of 4-aroyl-1,3-dihydro-2H-imidazol-2-ones was synthesized and evaluated for pharmacological activity in the anesthetized dog. Most members of this series produced dose-related increases in cardiac contractile force as well as relatively minor increases in heart rate and decreases in systemic arterial blood pressure that were not blocked by propranolol. In general, 4-methoxy or 4-methylthiobenzoyl substitution afforded compounds of greatest inotropic potency. 1,3-Dihydro-4-(4-methoxybenzoyl)-5-methyl-2H-imidazol-one (6) was shown to produce a dose-related positive inotropic effect and reverse the depressant effect of pentobarbital on cardiac pump function in the dog heart-lung preparation. The cardiotonic activity of this series may have important utility in the treatment of congestive heart failure. 1,3-Dihydro-4-[4-(methylthio)benzoyl]-5-methyl-2H-imidazol-2-one (17) was chosen for human studies and is currently undergoing clinical trials.
GRISAR, J. M.;SCHNEITTLER, R. A. =, DAGE, R. C.
作者:GRISAR, J. M.、SCHNEITTLER, R. A. =, DAGE, R. C.