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  • Title: Two new acetylated flavonoid glycosides from Phyllanthus urinaria.
    Author: Wu C, Wei CS, Yu SF, Liu BL, Li YL, Ye WC, Tong GD, Zhou GX.
    Journal: J Asian Nat Prod Res; 2013 Jul; 15(7):703-7. PubMed ID: 23679135.
    Abstract:
    Two new acetylated flavonoid glycosides, quercetin 3-O-α-l-(2,4-di-O-acetyl) rhamnopyranoside-7-O-α-l-rhamnopyranoside (1) and quercetin 3-O-α-l-(3,4-di-O-acetyl) rhamnopyranoside-7-O-α-l-rhamnopyranoside (2), together with two known compounds, quercetin (3) and quercetin 3-O-α-l-rhamnopyranoside (4), were isolated from the ethanol extract of Phyllanthus urinaria. The structures of the new compounds were determined on the basis of extensive spectroscopic data including IR, HR-ESI-MS, 1D NMR, and 2D NMR.
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