Abstract: The chemical constituents of Dipentodon sinicus Dunn were studied.Eleven compounds,including 3,3′-di-O-methylellagic acid 4′-O-α-L-rhamnopyramoside (1), quercetin-3-O-β-D-glucopyramoside (2), 3,3′-di-O-methylellagic acid 4′-O-β-D-glucopyranoside (3), isolariciresinol-9-O-α-L-arabinopyranoside (4), p-diphenol (5), p-hydroxybenzoic acid (6), α-hydroxy-(4-hydroxyphenyl)acetonitrile (7), 6-O-methyldhurrin (8),catechin (9),p-hydroxybenzaldehyde (10) and quercetin-3-O-β-L-rhamnopyranoside (11) were obtained.Their structures were determined on the basis of physicochemical and spectroscopic methods.Compound 2,4 and 6-11 were isolated from this species for the first time.

Key words: Dipentodon sinicus, Celastraceae, chemical constituents