CATECHINAMIDE, VERFAHREN ZU IHRER HERSTELLUNG, ZWISCHENPRODUKTE UND PHARMAZEUTISCHE ZUBEREITUNG

Novel neuropharmacologically active compounds of the formula wherein R is a hydrogen atom, an alkyl group, an acyl group, an alkoxycarbonyl group or a mono- or dialkylcarbamoyl group, R is a hydrogen atom, a halogen atom, an alkyl group, a trifluoroalkyl group, an alkylthio group or a trimethylsilyl group, A is a methyl or ethyl group, and R is a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, a phenyl group or a substituted phenyl group, or a physiologically acceptable salt or optical isomer thereof, intermediates and methods for their preparation, pharmaceutical preparations containing the compounds and methods for their therapeutical use.