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.
3-、5-和6-位上带有羧基的1,4-二氢吡啶以及在4-位被苯基、取代苯基、萘基、苯基烷基或杂环基取代的化合物是抗高血压药物和冠脉血管扩张剂。这些化合物的制备通过烯胺与酸酯亚甲基的缩合反应进行,后者可以单独制备或原位制备,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一个代表性的实施例。