申请人:Bayer Aktiengesellschaft
公开号:US03943140A1
公开(公告)日:1976-03-09
1,4-Dihydropyridines bearing carboxy functions in the 3-, 5- and 6- or 2-, 3-, 5- and 6-positions and being substituted in the 4-position by phenyl, substituted phenyl, naphthyl, phenylalkyl or a heterocyclic group are antihypertensive agents and coronary vessel dilators. The compounds, of which 2-methyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5,6-tricarboxylic acid triethylester is a representative embodiment, are prepared through condensation of an enamine with an ylidene acid ester, the latter being separately prepared or prepared in situ.
具有3-、5-和6-或2-、3-、5-和6-位置上的羧基功能,并且在4-位置上被苯基,取代苯基,萘基,苯基烷基或杂环基取代的1,4-二氢吡啶类化合物是抗高血压剂和冠状血管扩张剂。这些化合物,其中2-甲基-4-(3-硝基苯基)-1,4-二氢吡啶-3,5,6-三羧酸三乙酯是代表性实施例,通过使恩酰胺与酸酯基的酰亚胺缩合而制备,后者可以分别制备或原地制备。