Pharmaceutically useful dihydropyridinyldicarboxylate amides and esters

Abstract

A series of 1,4-dihydropyridin-3,5-yl dicarboxylic acid amides and esters incorporating an arylpiperazinylalkyl moiety have been prepared possessing the general formula ##STR1## wherein R.sup.4 is cycloalkyl, aryl or hetaryl, generally with electron-withdrawing substituents; R.sup.2 and R.sup.6 are lower alkyl, alkanol, alkoxyalkyl, or alkylaminoalkyl; R.sup.5 is R.sup.2 or arylpiperazinylalkyl; X is O or NH; Y is lower alkylene, alkoxyalkylene, alkylaminoalkylene; and Z is phenyl, substituted pheny, pyridinyl, substituted pyridinyl, or pyrimidinyl. Compounds of this series demonstrate activity as calcium and alpha-adrenergic blockers in in vitro testing and antihypertensive, anti-ischemic, and platelet function inhibiting actions in in vivo screens.