申请人:Bayer Aktiengesellschaft
公开号:US03946028A1
公开(公告)日:1976-03-23
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.
带有羧基的1,4-二氢吡啶,其在3-、5-和6-位或2-、3-、5-和6-位上被取代,且在4-位上被苯基、取代苯基、萘基、苯基烷基或杂环基所取代,可作为降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一个代表性实施例,是通过烯胺与酰亚胺酸酯的缩合反应制备而成,后者可以单独制备或原位制备。