Un nuovo glucoside flavonolico dalla Vestia Lycioides: quercetina-3--(2-O--D-glucopiranosil)-D-glucofuranoside
A new flavonol glucoside, the quercetin-3--(2-O--D-glucopiranosil)-D-glucofuranoside, has been isolated from the leaves of Vestia Lycioides together with theisoquercitrin. By the NMR spectrum of the corresponding acetate the -furanosydic structure of the glucose bound to quercetin has been determined.