'I'tie aiititidreiiergic action ot l-pli (wylpi1) ei ax~ itc: tiid I-~~ lieiiyl-4-iiiethylpiper~~ ziiie iere first iiieiitioiied by Uovet aiid Bovet-Sitti.? Sumei~ uh papers lislve siiice beeti published oil the adreiiergir blocking cff ect. of 4-substituted 1-arylpiperazines. Some pharmacological activities of 1-aryl-5-dialkyl-: tininomethyltetrazoles4 and~-aryl-l-alli~~ ltet1. axoles~ have been reported. The chemistry of 2-dialkylamino-: ilkyl-5-aryltetrazoles6: md~-dialk~ ...