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  • Title: New flavonol glycosides from the leaves of Caragana brachyantha.
    Author: Perveen S, Al-Taweel AM, Al-Musayeib N, Fawzy GA, Khan A, Mehmood R, Malik A.
    Journal: Nat Prod Res; 2015; 29(7):615-20. PubMed ID: 25422102.
    Abstract:
    Two new flavonol glycosides, brachysides C and D, together with three known flavonol glycosides, were isolated from the leaves of Caragana brachyantha. The structures of brachysides C and D were elucidated on the basis of detailed spectroscopic analysis as quercetin 5-O-[α-L-rhamnopyranosyl-(1 → 6)-β-D-glucopyranoside]-7-O-[α-L-rhamnopyranoside] and quercetin 5-O-[α-L-rhamnopyranosyl-(1 → 6)-β-D-glucopyranoside]-7-O-[α-L-rhamnopyranoside]-4'-O-[α-L-rhamnopyranoside], respectively. The presence of flavonol tetra- and triglycosides bearing a sugar moiety at position 5 was the first report from this genus Caragana.
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