FOERFARANDE FOER FRAMSTAELLNING AV NYA TERAPEUTISKT ANVAENDBARA 1,2-BENZISOTIAZOL-3-YLPIPERAZINDERIVAT.

摘要

A series of non-opiate analgesics of Formula I I wherein R1 is hydrogen, alkyl, aralkyl, or aryloxyalkyl; R2 is alkyl or hydrogen; and R3 and R4 are independently selected from hydrogen, alkyl, acyloxy, alkoxy, alkylthio, halogen, hydroxyl, or trifluoromethyl; or a pharmaceutically acceptable acid addition salt.