Chemical and Pharmaceutical Bulletin p. 1943 - 1945 (1992)
Update date:2022-08-04
Topics:
Cui
Nakamura
Kinjo
Nohara
Three new acylated flavonol glycosides (1-3) were isolated from Astragali Semen, seeds of Astragalus complanatus R. Br. (Leguminosae). The structures of 1, 2 and 3 were elucidated as 3-O-β-D-glucopyranosyl-4'-O-(3'''-O-dihydrophaseoyl-β-D-glucopyranos yl) rhamnocitrin, 3-O-[5'''-O-p-coumaroyl-β-D-apiofuranosyl(1''' → 2'')-β-D-glucopyranosyl] rhamnocitrin and 3-O-[5'''-O-feruloyl-β-D-apiofuranosyl(1''' → 2'')-β-D-glucopyranosyl] rhamnocitrin, respectively.
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