申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0081906A1
公开(公告)日:1983-06-22
Heterocyclic compounds of the formula
wherein the dotted line in the pyridazine nucleus indicates that a double bond is optional in this position, and wherein Py is a 2-, 3- or 4-pyridinyl group which is unsubstituted, or which bears one or two substituents selected from halogen, cyano, hydroxymethyl, carboxy, carbamoyl and alkyl, alkoxy, alkoxycarbonyl, alkylcarbamoyl and dialkylcarbamoyl wherein each alkyl or alkoxy has up to 4 carbon atoms, or which bears an oxygen substituent, either as an N-oxide or as an oxo substituent on the 2- or 4-carbon atom (that is, such as to form a pyridone); and acid-addition salts thereof; processes for their manufacture and pharmaceutical compositions containing them. The compounds possess cardiotonic and/or antihypertensive properties.
式中的杂环化合物
其中哒嗪核中的虚线表示该位置上的双键是任选的,Py 是 2-、3-或 4-吡啶基,该基团未被取代,或带有一个或两个选自卤素、氰基、羟甲基、羧基、氨基甲酰基和烷基、烷氧基、烷氧羰基、烷基氨基甲酰基和二烷基氨基甲酰基的取代基、氨基甲酰基和烷基、烷氧基、烷氧羰基、烷基氨基甲酰基和二烷基氨基甲酰基,其中每个烷基或烷氧基最多有 4 个碳原子,或在 2 碳原子或 4 碳原子上带有氧取代基,可以是 N-氧化物,也可以是氧代取代基(即形成吡啶酮);及其酸加成盐;它们的制造工艺和含有它们的药物组合物。这些化合物具有强心和/或抗高血压特性。