Cardiotonic agents. 2. Synthesis and structure-activity relationships of 4,5-dihydro-6-[4-(H-imidazol-1-yl)phenyl]-3(2H)-pyridazinones: a new class of positive inotropic agents
作者:Ila Sircar、Bradley L. Duell、George Bobowski、James A. Bristol、Dale B. Evans
DOI:10.1021/jm00148a006
日期:1985.10
substituent at the 5-position of 1 (CI-914) produced the most potent compound in this series (11, CI-930). Compound 1 is more potent than amrinone whereas compound 11 is more potent than milrinone. The inotropic effects of 1 and 11 are not mediated via stimulation of beta-adrenergic receptors. Selective inhibition of cardiac phosphodiesterase fraction III represents the principal component of the positive