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Abstract
A new flavonoid glycoside, 5,7-dihydroxy-4′-methoxyflavone-7-O-[6-O-(4-O-acetyl-α-L-rham-nosyl)-3-O-β-D-glucosyl]-6-O-acetyl-β-D-glucoside and three known flavonoid glycosides, 5,7-dihydroxy-4′-methoxyflavone-7-O-[6-O-(4-acetyl-α-L-rhamnosyl)]-β-D-glucoside, 3,5,7, 4′-tetrahydroxyflavonol-3-O-β-D-glucoside and 5,7-dihydroxy-4′-methoxyflavone-7-O-(6-O-α-L-rhamnosyl)-β-D-glucoside were isolated from the whole plant of Thalictrum przewalskii. Their structures were determined on the basis of spectroscopic evidences.
