title: Araliasaponins XII-XVIII, triterpene saponins from the roots of Aralia chinensis.
abstract: Seven new oleanane-type saponins, named araliasaponins XII-XVIII, were isolated from the roots of Aralia chinensis, together with 14 known triterpene saponins. On the basis of the chemical and spectroscopic evidence, the structures of these new saponins were elucidated as follows: 3-O-beta-D-glucopyranosyl(1-->3)-[beta-D -glucopyranosyl(1-->2)]-alpha-L-arabinopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl ester, 3-O-beta-D-glucopyranosyl(1-->3)-[beta-D-xylopyranosyl (1-->2)]-alpha-L-arabinopyranosyl oleanolic acid 28-O-alpha-L-rhamnopyranosyl(1-->4)-beta-D-glucopyranosyl (1-->6)-beta-D-glucopyranosyl ester, 3-O-beta-D -glucopyranosyl(1-->3)-[beta-D-galactopyranosyl(1-->2)] -beta-D-glucopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl ester, 3-O-beta-D-glucopyranosyl(1-->3)-[beta-D -xylopyranosyl(1-->2)]-beta-D-glucopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl (1-->6)-beta-D-glucopyranosyl ester, 3-O-beta-D -glucopyranosyl(1-->3)-[beta-D-galactopyranosyl (1-->2)]-beta-D-galactopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl ester, 3-O-alpha-L -arabinofuranosyl(1-->4)-[beta-D-glucopyranosyl (1-->2)]-beta-D-glucuronopyranosyl oleanolic acid dimethyl ester and 3-O-alpha-L-arabinofuranosyl (1-->4)-[beta-D-glucopyranosyl(1-->2)]-beta-D -glucuronopyranosyl oleanolic acid 28-O-beta-D -glucopyranosyl(1-->6)-beta-D-glucopyranosyl methyl ester, respectively.
authors.affiliation: School of Pharmaceutical Sciences, University of Shizuoka, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Miyase
authors.forename: N
authors.initials: N
authors.lastname: Sutoh
authors.forename: D M
authors.initials: DM
authors.lastname: Zhang
authors.forename: A
authors.initials: A
authors.lastname: Ueno
mesh_terms: D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D015394:Molecular Structure; D009904:Optical Rotation; D010936:Plant Extracts; D018517:Plant Roots; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013329:Structure-Activity Relationship; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D010936:Plant Extracts; D012503:Saponins; D014315:Triterpenes