[Studies on the chemical constituents of Dipsacus asper Wall]

Six compounds I-VI were isolated from the roots of Dipsacus asper Wall.. Compounds I, II, III and VI were identified as sucrose, daucosterol, beta-sitosterol and akebia saponin D, respectively. On the basis of spectral analysis and chemical evidence, the structures of two new compounds were established as 3-O-(4-O-acetyl)-alpha-L-arabinopyranosyl-hederagenin 28-O-beta-D-glucopyranosyl-(1----6)-beta-D-glucopyranoside (IV) and 3-O-alpha-L-arabinopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl-(1----6)-beta-D-glucopyranoside (V).