Process for the production of new perhydro-aza- heterocycles

Abstract From the Canadian patent

The present invention provides processes for the production of new derivatives of perhydro-aza-heterocycles of the formula, (I), in which X is the oxo radical or hydrogen and the radical OR1 in which R1 is hydrogen, lower alkyl, carboxy-lower alkyl lower alkoxycarbonyl-lower alkyl, carbamoyl-lower alkyl N-, lower alkylcarbamoyl-lower alkyl, N,N-di-lower alkylcarbamoyllower alkyl or cyano-lower alkyl and also phenyl or phenyl-, lower alkyl or phenoxy-lower alkyl which are unbranched or branched at the .alpha.-carbon atom, it being possible in each, case, for phenyl to be unsubstituted or substituted by lower alkyl, lower alkoxy, halogen, trifluoromethyl lower alkoxy-, carbonyl, carbamoyl, …