Two methoxylated flavone glycosides from Bidens pilosa

Article abstract of DOI:10.1016/S0031-9422(97)01113-8

Two methoxylated flavone glycosides were identified as the novel quercetin 3,3'-dimethyl ether 7-O-α-L-rhamnopyranosyl-(I → 6)-β-D- glucopyranoside and the known quercetin 3,3'-dimethyl ether 7-O-β-D- glucopyranoside from the roots of Bidens pilosa.