METHOD OF SYNTHESIS OF NITROGEN-CONTAINING HETEROCYCLIC COMPOUNDS OR THEIR PHARMACEUTICALLY ACCEPTABLE SALTS

摘要

FIELD: organic chemistry. SUBSTANCE: method involves the synthesis of new heterocyclic nitrogen-containing compounds of the formula (I) where radicals R₁-R₄ have different meanings; X - CH₂ , or their pharmaceutically acceptable salts. Reagent 1: compound of the formula (II) where R - H. Reagent 2: R₂-Y. Synthesized compounds are used in medicine. EFFECT: improved method of synthesis of compounds indicated above. 1 tbl