FIELD: medicine. SUBSTANCE: products- 3-quinuclidinyl propionic acid esters of formula 1, wherein X- phenyl, fluorosubstituted phenyl or thienyl, Y- 5-member nitrogen-containing heterocycle selected from group consisting of imidazolyl, pyrazolyl, triazolyl or tetrazolyl, or their hydrochlorides. Reagent 1: compound of formula 2, wherein X and Y is as defined above. Reagent 2: lithium diisopropylamide or sodium hydride. Reagent 3: formaldehyde. Reaction conditions : reaction is carried our in organic solvent under cooling. EFFECT: increased production efficiency. 3 tbl
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