Isolation and characterization of a new flavone diglucoside from salix denticulata

摘要

A new flavone diglucoside named 7,3'-dihydroxy-4'-methoxyflavone-5-O- β-D-glucopyranosyl (6'→1')-β- D-glucopyranoside (1), along with four known flavonoids, luteolin (2), isoquercetin (3), catechin (4), and diosmetin (5), has been isolated and characterized from Salix denticulata. The structure of the new flavone diglucoside was characterized by means of high field 1D and 2D NMR and MS spectral analysis.