Dihydrostilbene glycosides and lignan from Camellia sasanqua

Abstract

Three dihydrostilbene glycosides, 3,5-dihydraxydihydrostilbene 4'-O-β-D-glucopyranoside (1), 3,5-dimcthoxydihydrostilbene 4'-O-α-L-rhamnopyranosyl-(1 → 6)-β-D-glucopyranoside (2), 5,4'-dihydroxydihydrostilbene 3-O-β-D-glucopyranoside (3), and one lignan, nucleoside (4) were isolated from the methanol extract of leaves of camellia sasanqua Thunb. Their chemical structures were determined by using ESI-MS and NMR spectra as well as in comparison with the reported data. Compounds 3 and 4 were reported from camellia genus for the first time.