Novel 5-acyl-2-(1H)pyridinones of formula I
and their use as cardiotonic agents. They are prepared by reacting a 1-R5-3-R6-2-(dimethylamino-1-R4-methylidenyl)-1,3-propanedione with an appropriate R3-substituted acetoacetamide.
式 I 的新型 5-酰基-2-(1H)
吡啶酮及其作为强心剂的用途
及其作为强心剂的用途。它们是通过 1-R5-3-R6-2-(二甲基
氨基-1-R4-亚甲基)-1,3-丙二酮与适当的 R3 取代乙酰乙酰胺反应制备的。