Flavonoids from Polygonum lapathifolium ssp. tomentosum

Two acetylated flavonoid glycosides: quercetin-3- O -ß-D-(6?- O -galloyl)-glucopyranooside and quercetin-3- O -ß-D-(6?- O -galloyl)-galactopyranoside together with quercetin-3- O -ß-D-glucuronide, quercetin-3- O -ß-D-glucopyranoside, quercetin-3- O -ß-D-galactopyranoside, quercetin-3- O -a-Lrhamnpyranoside, 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.