New methylated flavonol glucosides from Fumana montana Pomel.

Three new methylated flavonol glucosides: 3-methoxy-7-O-ß-(6″-galloylgluco-pyranoside) quercetin (1), 3,4'-dimethoxy-7-O-ß-(6″-galloyl-glucopyranoside) quercetin (2) and 3-methoxy-7-O-ß-(6″-galloylgluco-pyranoside) kaempferol (3), in addition to six known flavonols, were isolated from the ethyl acetate extract of Fumana montana Pomel. Their structures were assigned by spectroscopic methods.