Galiya E. Zhusupova

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Compositions of ethylacetate fractions of roots and aerial parts of Limonium Gmelinii and L. Popovii (Plumbaginaceae) were studied. 3,5,7,3′,4′,6′-Hexahydroxyflavone and myricetin 3-O-α-L-(2′-galloyl)arabopyranoside, the structures of which were established using chemical transformations and spectral data, were isolated for the first time.
Three new compounds, (2S,3S)-5-methyldihydromyricetin (1), (2S,3S)-5-methyldihydromyricetin-3'-O-sulfate (2) and β-d-glucopyranoside, 3-methyl, but-3-en-1-yl 4-O-α-l-rhamnopyranosyl (3) have been isolated from the Limonium caspium, together with dihydromyricetin (4), dihydromyricetin-3'-O-sulfate (5), myricetin-3'-O-sulfate (6), 5-methylmyricetin (7),(More)
Gmelinoside I (1), a new flavonol glycoside, was isolated and chemically characterized as 3,5,7,3',4',5'-hexahydroxy-3-O-alpha-D-galactopyranosylflavone from the aerial part of Limonium gmelinii Kuntze (Plumbaginaceae).. Other compounds were identified as (-)-epigallocatechin-3-O-gallate, myricetin, myricetin-3-O-alpha-L-rhamnopyranoside,(More)
The synthesis of a series of bromine derivatives of quercetin differing by the number of bromine atoms introduced is described. It has been shown that in the dynamics of the bromination process the deciding factors affecting the qualitative and quantitative compositions of the reaction products are the temperature regime and the ratio of the reactants.(More)
An investigation of the properties of natural compounds containing phenol groups for antiradical activity will permk a purposeful search for substances possessing cancerolytic, antitumoral, radiosensitizing, and antioxidant activities. We have studied the antiradical activity of the natural polyphenol quercetin and its acyl and dibromo derivatives by means(More)
The fatty-acid composition of two Limonium plant species (Plumbaginaceae), including both saturated and polyunsaturated acids, was determined for the first time using chromatography—mass-spectrometry. High contents of palmitic, oleic, linolenic, and linoleic acids were found. Methyl esters of fatty acids in Limonium Popovii were identified by mass(More)
The comparative phytochemical constituents of three Limonium species Limonium myrianthum, Limonium leptophyllum, and Limonium gmelinii afforded a new compound (2R,3S)-2,3,4-trihydroxy-2-methylbutyl gallate (1) and twenty known compounds (2–21). Each species displayed different profiles in their phytochemical constituents. The isolated compounds (1–21) were(More)
Pigments and lipids from the aerial parts of six plant species from the genus Limonium (Plumbaginaceae, Limoniacea) were studied. Xanthophylls dominated among the carotinoids; chlorophyll, the chlorophylls, according to spectrophotometry. Unsaturated fatty acids, the content of which reached 80%, dominated in all samples according to GC. The principal fatty(More)
Two dimeric proanthocyanidines identified as 2R,3R,4R-(-)-epigallocatechin-(4β→ 8)-2R,3R-(-)-epigallocatechin-3-O-gallate and 2R,3R,4R-(-)-epigallocatechin-(4β→8)-(-)-2R,3R,3,5,7,3′,4′,6′-hexahydroxyflavan were isolated by adsorption chromatography over polyamide of the ethylacetate fraction of the aqueous alcohol extract of Limonium gmelinii roots. The(More)