SYNTHESIS, STRUCTURE, AND BIOLOGICAL ACTIVITY OF 4-HETARYL-2-PYRROLIDONES CONTAINING A PYRAZOLE RING
DOI:
https://doi.org/10.1007/6838Keywords:
carbohydrazides, 3, 5-dimethylpyrazole, hydrazides, 2-pyrrolidone, biological activity, racetams, X-ray structural analysisAbstract
Single diastereomers of 4-hetaryl-2-pyrrolidone-3(5)-carbo- and 2-[4-hetaryl-2-pyrrolidon-1-yl]acetohydrazides were used in reactions with 2,4-pentanedione, providing (3R*,4S*)-3-, (4R*,5R*)-5-(3,5-dimethyl-1H-pyrazole-1-carbonyl)- and 1-[2-(3,5-dimethyl-1H-pyrazol-1-yl)-2-oxoethyl]-4-hetaryl-2-pyrrolidones. The structures of the synthesized compounds were confirmed by spectral methods and X-ray structural analysis. Some of the obtained compounds were shown to possess nootropic and anxiolytic activity.
Authors: Natal'ya V. Gorodnicheva, Olga S. Vasil'eva, Evgeny S. Ostroglyadov,
Ruslan I. Baichurin, Igor A. Litvinov, Ivan N. Tyurenkov, Nikolay S. Kovalev,
Dmitry A. Bakulin, Denis V. Kurkin, L. V. Baichurina, Sergey V. Makarenko*