21841-86-1Relevant articles and documents
Substituted 6-phenyl-3(2H)-pyridazinones useful as cardiotonic agents
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, (2008/06/13)
Substituted 6-phenyl-3(2H)-pyridazinone compounds are useful as cardiotonic agents. Said compounds cause a significant increase in myocardial contractility in the anesthetized dog. Said compounds are produced by reacting substituted γ-oxobenzenebutanoic acids with suitably substituted hydrazines to provide 6-phenyl-4,5-dihydro-3(2H)-pyridazinones which are dehydrogenated to the desired product. The intermediate 6-phenyl-4,5-dihydro-3(2H)-pyridazinones are themselves useful as cardiotonic agents.