2,6-dialkyl-4-(benzothiazol- or benzoxazol-7-yl)-1,4-dihydropyridines which exhibit positive inotropic action with largely neutral vascular behavior, of the formula ##STR1## in which R.sup.1 and R.sup.5 are identical or different and represent straight-chain or branched alkyl having up to 8 carbon atoms, R.sup.2 represents nitro or cyano, or R.sup.1 and R.sup.2 together form a lactone ring of the formula ##STR2## R.sup.3 represents a radical of the formula ##STR3## R.sup.4 -R.sup.7 are defined hereinafter and physiologically acceptable salts thereof.
表现出正肌力作用且在很大程度上具有中性血管行为的2,6-二烷基-4-(
苯并噻唑-或苯并
噁唑-7-基)-1,4-
二氢吡啶的化合物,其
化学式为##STR1##其中R.sup.1和R.sup.5相同或不同,代表直链或支链烷基,碳原子数最多为8,R.sup.2代表硝基或
氰基,或R.sup.1和R.sup.2一起形成
化学式##STR2##的内酯环,R.sup.3代表
化学式##STR3##的基团,R.sup.4-R.sup.7在此处定义,并且其生理上可接受的盐。