title: Triterpenoid glycosides from Stauntonia hexaphylla.
abstract: From Stauntonia hexaphylla, two new 3,28-bisglycosidic triterpenoid glycosides named staunosides A and B, were isolated along with three known triterpenoid glycosides, one of which was isolated from nature of the first time, though it had previously been obtained from the acid hydrolysate of kizuta saponin K12. On the basis of chemical and physicochemical evidence, the structures of staunosides A and B were elucidated as 3-O-(beta-D-glucopyranosyl)-hederagenin-28-O-[beta-D- glucopyranosyl(1-->6)-beta-D-glucopyranosyl]ester and 28-O-[alpha-L-rhamnopyranosyl(1-->4)-beta-D-glucopyranosyl(1-->6)- beta-D-glucopyranosyl]ester, respectively.
authors.affiliation: Pharmaceutical Institute, Bonn University, Bonn, F.R.G.
authors.forename: H B
authors.initials: HB
authors.lastname: Wang
authors.forename: R
authors.initials: R
authors.lastname: Mayer
authors.forename: G
authors.initials: G
authors.lastname: Rücker
mesh_terms: D002240:Carbohydrate Sequence; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D004365:Drugs, Chinese Herbal; D006027:Glycosides; D014315:Triterpenes