[Isolation and identification of a saponine from Patrinia scabiosaefolia]

A saponine compound was isolated from the acetone extract of the roots and rhizomes of Patrinia scabiosaefolia Fish. ex Link. Its structure was identified by combination of chemical reaction and spectrum analysis as 3-O-alpha-L-rhamnopyranosyl-(1-2)-beta-D-xylopyranosyl oleanolic acid (giganteaside D), and part of its 13C-NMR data was revised by the 2D-NMR. The compound was found in the Patrinia for the first time.