Neolignans and flavonol glycosides from the leaves of viburnum lutescens blume

Four neolignans, (7S,8S)-dihydrodehydrodiconiferyl alcohol 9-O-β-D-glucopyranoside (1), 9′-O-β-D-glucopyranoside (2), (7S,8R)-5-methoxydihydrodehydrodiconiferyl 4-O-β-D-glucopyranoside (3), and (4) five flavonol glycosides, kaempferol-3-O-β-D-glucopyranoside (5), kaempferol 3-O-rutinoside (6), 3-O-α-L-rhamnopyranosyl (1→6)-β-D-galactopyranoside (7), 3-O-β-D-galactopyranoside (8), quercetin 3-O-β-D-glucopyranoside (9) were isolated from the methanol extract of Viburnum lutescens Blume leaves. Their chemical structures elucidated by 1D- 2D-NMR spectra comparison with those reported in literature. Compounds 1, 2, 4 genus for first time.