Abstract
Nine flavonoids (1–9) were isolated from the leaves ofMorus alba (Moraceae). The structures of compounds were determined to be kaempferol-3-O-β-D-glucopyranoside (astragalin,1) kaempferol-3-O-(6″-O-acetyl)-β-D-glucopyranoside (2), quercetin-3-O-(6″-O-acetyl)-β-D-glucopyranoside (3), quercetin-3-O-β-D-glucopyranoside (4), kaempferol-3-O-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranoside (5), quercetin-3-O-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranoside (rutin,6), quercetin-3-O-β-D-glucopyranosyl-(1→6)-β-D-glucopyranoside (7), quercetin-3,7-di-O-β-D-glucopyranoside (8) and quercetin (9) on the basis of spectroscopic and chemical studies. Compounds7 and9 exhibited significant radical scavenging effect on 1,1-diphenyl-2-picryl-hydrazyl radical.
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Kim, S.Y., Gao, J.J., Lee, WC. et al. Antioxidative flavonoids from the leaves ofMorus alba . Arch Pharm Res 22, 81–85 (1999). https://doi.org/10.1007/BF02976442
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DOI: https://doi.org/10.1007/BF02976442