Azabicyclo[3.3.1]-nonanes are one of the promis- ing classes of heterocyclic compounds. This is due to the presence of the bicyclic frame as a structural frag- ment in the composition of natural biologically active compounds possessing neurotropic, antiarrythmic, and antitumor properties [1, 2]. Besides the bicyclo[3.3.1] nonanes and their heteroanalogs are convenient models for the investigation of the effect of various intermolecular interactions on the conformational ...
