2-Amino-1,4-dihydropyridines bearing an ester carbonyl function in the 3-position, being optionally substituted by lower alkyl in the 5-position, and being substituted in the 4- and 6-positions by lower alkyl, phenyl, substituted phenyl or a heterocyclic group are antihypertensive agents and coronary vessel dilators. The compounds, of which 2-amino-6-methyl-4-(3-chlorophenyl)-1,4-dihydropyridine-3 carboxylic acid ethyl ester is a representative embodiment, are prepared through condensation of an .alpha.-B-unsaturated ketone and an amidine.
在3-位置带有酯羰基功能的2-
氨基-1,4-
二氢吡啶,可以在5-位置被低烷基选择性地取代,并在4-和6-位置被低烷基,苯基,取代苯基或杂环基所取代,是降压药和冠状血管扩张剂。这些化合物,其中2-
氨基-6-甲基-4-(3-
氯苯基)-1,4-
二氢吡啶-3-
羧酸乙酯是一种典型的实施例,是通过α-β-不饱和酮和胺基化合物的缩合反应制备的。