Synthesis and Neurotropic Activity of New 7-Cyclohexyl-6,7,8,9-Tetrahydro-3 H -Pyrazolo[3,4- c ]-2,7-Naphthyridine-1,5-Diamines

A method for synthesizing new tricyclic heterocyclic 7-cyclohexyl-6,7,8,9-tetrahydro-3H-pyrazolo- [3,4-c]-2,7-naphthyridine-1,5-diamines from 1,3-dichloro-7-cyclohexyl-5,6, 7,8-tetrahydro-2,7-naphthyridine-4-carbonitrile was elaborated. Investigation of the biological activity of the synthesized compounds showed that several of them exhibited pronounced neurotropic properties.