FIELD: organic chemistry. SUBSTANCE: product: bicyclic 1-aza-cycloalkanes of the general formula -CH2- where R lower alkyl, nonsubstituted or substituted with furan, thiophene or imidazole; alkenyl with 3-6 carbon atoms; alkynyl with 3-6 carbon atoms; nonsubstituted phenyl or substituted with lower alkyl, alkoxy-group or halide; nonsubstituted benzyl or substituted with halide; pyridyl; pyrimidinyl; A, B and C - independently each of other means or simple bond; n 0 or 1, mixture of their isomers or separate isomers, or their pharmacologically acceptable salts. EFFECT: improved method of synthesis. 4 tbl
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