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Published:
Oct 14, 2008Keywords:
Flavonoids Quercetin 3-O-α -arabinoside Quercetin Quercetin 3-O-β -D-glucoside
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Flavonoid glycosides from <i>Byrsocarpus coccineus</i> leaves. Schum and Thonn (Connaraceae)
Abstract
The bioactive ethyl acetate and N-butanol soluble parts of an ethanolic extract of Byrsocarpus coccineus leaves was subjected to column chromatography over silica gel G (60 - 120μ) and repeated purification of the flavonoid rich fraction over sephadex LH-20 eluted with methanol led to the isolation of three flavonoid glycosides identified as quercetin 3-O-α-arabinoside (I), quercetin(II) and quercetin 3-β-D-glucoside. Their structures were elucidated by 1H and 13C-NMR data and are reported here for the first time in this plant.
Keywords: Flavonoids Quercetin 3-O-α-arabinoside,Quercetin,Quercetin 3-O-β-D-glucoside
African Journal of Traditional and Complementary Medicine Vol. 4 (3) 2007: pp. 257-260
