Synthesis of asymmetric 1,4-disubstituted piperazines and their psychotropic and cardiovascular actions. Part II.

New asymmetric piperazines 9-19 were obtained by condensation of 1-acyl-piperazines with 1,2-epoxy-3-chloropropane, arylacid chlorides, phenols, amines and 1-(alpha-naphthyloxy)-2,3-epoxypropane. Most of the compounds produced a transient hypotension and exerted a spasmolytic action of the isolated intestine. Compounds 10, 11 and 13 displayed a weak antiarrhythmic effect in the adrenaline arrhythmia test in rats. Compounds 14 and 15 increased the coronary flow, but their action was weaker than that of compound 4, described in the first part of the paper.