FIELD: chemistry.
SUBSTANCE: invention relates to a biologically active analgesic with non-opioid action 2-[3'-(6'-chloropyridyl)]-7-azabicyclo[2.2.1]-haptane, and specifically to a method of producing an exo-isomer thereof via isomerisation of an endo-isomer in the presence of strong bases in an aprotic solvent solution at room temperature. The disclosed method is easily implemented in industrial conditions and enables to obtain 2-exo-[3'-(6'-chloropyridyl)]-7-azabicyclo[2.2.1]-haptane with high output.
EFFECT: high output.
4 cl, 5 ex
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