Flavonol glycosides from aerial parts of Astragalus thracicus Griseb
نویسندگان
چکیده
Abstract Five flavonol glycosides, including a new glutaryl-conjugated compound, were isolated from methanolic extract of the endemic Balkan species Astragalus thracicus Griseb. Based on NMR and MS spectra, one compound was identified as kaempferol 3-O-[?-glucopyranosyl-(1?4)-?-rhamnopyranosyl-(1?6)-(2-3-hydroxy-3-methylgutaroyl)-?-galactopyranoside)] (1). The other compounds, all known, mauritianin (2), kaempferol-3-O-?- l -rhamnopyranosyl-(1?2)-?-galactopyranoside (3), kaempferol-3-O-?-apiofuranosyl-(1?2)-?-galactopyranoside (4), quercetin-3-O-?-apiofuranosyl-(1?2)-?-galactopyranoside (5). All them, except 2, found for first time in representative genus Astragalus.
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ژورنال
عنوان ژورنال: Phytochemistry Letters
سال: 2021
ISSN: ['1876-7486', '1874-3900']
DOI: https://doi.org/10.1016/j.phytol.2020.11.012