Flavonoids from Polygonum lapathifolium ssp tomentosum

Two acetylated flavonoid glycosides: quercetin-3-O-beta-D-(6-O-galloyl)glucopyranooside and quercetin-3-O-beta-D-(6-O-galloyl)-galactopyranoside together with quercetin-3-O-beta-D-glucuronide, quercetin-3-O-beta-D-glucopyranoside, quercetin-3-O-beta-D-galactopyranoside, quercetin-3-O-alpha-L-rhamnpyranoside, quercetin-3-O-rhamnoglucoside, kaempferol-3-O-D-glucopyranoside, quercetin, kaempferol and taxifolin, were isolated from the aerial parts of Polygonum lapathifoluim ssp tomentosum (Schrank) Dans. The structures of the compounds were determined by chemical and spectroscopic methods.