Substituted n-piperidine-4-yl-n-pyrroloamines, a process for their preparation and their use as medicaments

Abstract From the Canadian patent

This invention relates to pyrrolylaminopiperidines and related compounds of the formula, where R is hydrogen loweralkyl, Arloweralkyl, cycloalkyl-, loweralkyl loweralkenyl and thienylloweralkyl; R1 is lower alkyl, hydrogen, loweralkylcarbonyl, loweralkoxycarbonyl loweralkylthiocarbonyl of the formula alkyl, cyano, loweralkylaminocarbonyl, diloweralkylaminocarbonyl cycloalkylcarbonyl, cycloalkylloweralkylcarbonyl and loweralkenylcarbonyl; R2 is hydrogen, halogen and methyl; the pharmaceutically acceptable acid addition salts thereof and to a process for their preparation. The compounds of the present invention have analgesic activity and can therefore , be used as medicaments.