Synthesis and Pharmacological Evaluation of New 1-[3-(4-Arylpiperazin-1-yl)-2-hydroxypropyl]-pyrrolidin-2-one Derivatives with Anti-arrhythmic, Hypotensive, and α-Adrenolytic Activity
a pyrrolidin‐2‐one fragment was synthesized and evaluated for the binding affinity of the α1‐ and α2‐adrenoceptors (AR) and for the antiarrhythmic and hypotensiveactivities of the compounds. The most potent and selective compound 1‐[2‐hydroxy‐3‐[4‐[(2‐hydroxyphenyl)piperazin‐1‐yl]propyl]pyrrolidin‐2‐one 8 binds with pKi = 6.71 for α1‐AR. Derivative 8 was also the most active in the prophylactic antiarrhythmic
A series of 1-substituted pyrrolidin-2-one and pyrrolidine derivatives were synthesised and tested for electrocardiographic, antiarrhythmic, and antihypertensive activity as well as for alpha(1)- and alpha(2)-adrenoceptors binding affinities. Among the newly synthesised derivatives several compounds with 3-(4-arylpiperazin-1-yl)propyl moiety displayed strong antiarrhythmic (7a-12a) and antihypertensive