N. A. Vasilevskaya

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Phenolic components of the wood and roots of far-east yew (Taxus cuspidata) have been isolated and investigated. Four lignans [(+)-taxiresinol, (+)-isotaxiresinol, (+)-isolariciresinol, (−)-secoisolariciresinol] and two catechins [(+)-catechin, (−)-epicatechin] were identified using spectroscopic techniques. HPLC data showed that wood, bark, roots, stems,(More)
The rare α,4,2′,4′-tetrahydroxydihydrochalcone, flavanones liquiritigenin and naringenin, isoflavones calycosin and 5-methoxydaidzein, and reduced stilbene dihydroresveratrol were isolated for the first time from Maackia amurensis wood. The structures of the pure compounds were established using 2D NMR COSY, NOE, HMBC, and HSQC experiments.
Manchurian ash is widely distributed in the Far East and is used as commercial timber. Nevertheless the bark has found no use, although it is known that in the folk medicine of the Naniam, the Udegeys, and the Ulocheys it is used as an antitubercular, antihelminthic, and wound-healing agent [ 1]. In China, the dried bark of F. mandshurica is sometimes used(More)
The raw material was gathered in the flowering period in the flood plain of the R. Bogataya (Suburb of Vladivostok). After repeated extraction with ethanol, the concentrated extracts were diluted with water and were reextrated successively with hexane, ethyl acetate, and butanol. The resulting fractions were separated with the aid of chromatography on(More)
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