title: 3 alpha-hydroxy-oleanane-type triterpene glycosyl esters from leaves of Acanthopanax spinosus.
abstract: Three novel 3 alpha-hydroxy-oleanane-type triterpene oligoglycosyl esters, spinoside C1, C4 and C5, were isolated from the leaves of Acanthopanax spinosus. The structures were established to be 28-O-alpha-L-rhamnopyranosyl(1-->4)-beta-D-glucopyranosyl (1-->6)-beta-D-glucopyranosyl esters of 3 alpha, 29-dihydroxy-olean-12-ene-28-oic acid, 3 alpha, 29-dihydroxy-23-oxo-olean-12-ene-28-oic acid and 3 alpha, 23,29-trihydroxy-olean-12-ene-28-oic acid.
authors.affiliation: School of Pharmaceutical Sciences, Showa University, Tokyo, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Miyakoshi
authors.forename: Y
authors.initials: Y
authors.lastname: Ida
authors.forename: S
authors.initials: S
authors.lastname: Isoda
authors.forename: J
authors.initials: J
authors.lastname: Shoji
mesh_terms: D002240:Carbohydrate Sequence; D004952:Esters / Q000737:chemistry / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D015394:Molecular Structure; D010944:Plants / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D004952:Esters; D012503:Saponins; D014315:Triterpenes