This invention relates to substituted 1,4-dihydropyridines showing interesting physiological activities, particularly on the cardiovascular system. 1,4-Dihydropyridines in accordance with the invention are substituted in the 4-position by a 2-chloropyrid-3-yl or a 2-methylthiopyrid-3-yl group, in the 3- and 5-positions by a methoxycarbonyl or ethoxycarbonyl group and in the 2- and 6-positions by a methyl group. Acid addition salts of these compounds are included in the present invention. The compounds can be prepared by reacting an appropriate 2-substituted nicotinaldehyde with an alkyl acetoacetate. Compounds in accordance with the invention have shown anti-hypertensive activity at very low doses.
本发明涉及替代的1,4-
二氢吡啶,具有有趣的生理活性,特别是对心血管系统的影响。本发明中的1,4-
二氢吡啶在4位被2-
氯吡啶-3-基或
2-甲硫基吡啶-3-基取代,在3和5位被甲氧羰基或乙氧羰基取代,在2和6位被甲基取代。这些化合物的酸盐也包括在本发明中。这些化合物可以通过将适当的2-取代
烟醛和烷基乙
酮酸酯反应制备而成。根据本发明的化合物在非常低的剂量下表现出降压活性。