4-alkanoylimidazol-2-ones of the following general structure which are useful as cardiotonics in the treatment of cardiac failure ##STR1## wherein Q and T are each an oxygen atom or a divalent sulfur atom; R is hydrogen, lower alkyl, lower alkylcarbonyl or benzoyl; R.sub.1 is hydrogen or lower alkyl; R.sub.2 is a lower aliphatic hydrocarbon radical, phenyl alkylene or heterocyclo alkylene; and the pharmaceutically acceptable salts thereof.
以下一般结构的4-酰基
咪唑-2-酮化合物在治疗心力衰竭时作为心脏强心剂有用:##STR1## 其中Q和T分别为氧原子或二价
硫原子;R为氢、低级烷基、低级烷基甲酰或苯甲酰;R.sub.1为氢或低级烷基;R.sub.2为低级脂肪烃基、苯基烷基或杂环烷基;以及其药学上可接受的盐。