Quinolone derivatives having a quinolone structure: ##STR1## where Yo is O or S are disclosed, which are useful as cardiotonic agents. Typical examples of the quinolone derivatives include: 6,7-dimethoxy-4 (1H) quinolone (compound 6) and 5-hydroxy-6-methoxy-4(1H) quinolone (compound 1) as typical compounds of the formulae[I] and [I'], respectively, shown in the specification.
具有
喹诺酮结构的
喹诺酮衍
生物被披露,其中Yo是O或S,这些衍
生物可用作心力衰竭药物。
喹诺酮衍
生物的典型例子包括:6,7-二甲氧基-4(1H)
喹诺酮(化合物6)和5-羟基-6-甲氧基-4(1H)
喹诺酮(化合物1),它们分别是规范中显示的公式[I]和[I']的典型化合物。