申请人:Bayer Aktiengesellschaft
公开号:US03959296A1
公开(公告)日:1976-05-25
Derivatives of 4-substituted phenyl 1,4-dihydropyridine 3,5-dicarboxylic acids substituted by lower alkyl groups in the 2- and 6-positions, are cardiovascular agents. The compounds, of which 2,6-dimethyl-4-[2-(diethylaminoethoxy)-phenyl]-1,4-dihydropyridine-3,5-dic arboxylic acid 3,5-diethyl ester is a typical example, can be prepared through condensation of a .beta.-dicarbonyl compound with an amine and an aldehyde, of an ylidene-.beta.-ketocarboxylic acid ester, with a .beta.-ketocarbonyl compound and an amine, of an aldehyde, an enamine and a .beta.-ketocarbonyl compound, or through elaboration of the substituent on the phenyl group.
4-取代苯基1,4-二氢吡啶-3,5-二羧酸的衍生物,其在2-和6-位被较低的烷基取代,是心血管药物。这些化合物,其中2,6-二甲基-4-[2-(二乙氨基乙氧基)-苯基]-1,4-二氢吡啶-3,5-二羧酸3,5-二乙酯是一个典型的例子,可以通过将β-二羰基化合物与胺和醛、与一个叶基-β-酮羧酸酯、与一个β-酮羰基化合物和一个胺、与一个醛、一个烯胺和一个β-酮羰基化合物进行缩合,或通过对苯基上的取代基进行详细处理来制备。