Process for the preparation of 1-hydroxyaporphine-derivatives

摘要

A process for the preparation of 1-hydroxyaporphine derivatives of the general formula: <IMAGE> I wherein R1, R3 and R4, which are the same or different, are lower alkyl, aryl or aralkyl radicals or R3 and R4 can together form a lower alkylene bridge member and R2 is a hydrogen atom or a lower alkyl, aralkyl or alkoxycarbonyl radical or an acyl radical derived from an aliphatic, aromatic or araliphatic carboxylic acid.