title: Two new triterpenoid saponins from Aralia subcapitata.
abstract: Two new oleanane-type saponins, subcapitatoside B and C were isolated from the roots of Aralia subcapitata. On the basis of chemical and spectral evidences, subcapitatoside B and C were established as oleanolic acid 3-O-beta-D-glucopyranosyl-(l-->3)-[beta-D-galactopyranosyl- (1-->2)]-beta-D3--galactopyranoside, and 3-O-beta-D-glucopyranosyl- (1-->3)-[beta-D-galactopyranosyl-(1-->2)]-beta-D-glucopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside, respectively.
authors.affiliation: Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences.
authors.forename: M L
authors.initials: ML
authors.lastname: Zou
authors.forename: S L
authors.initials: SL
authors.lastname: Mao
authors.forename: S M
authors.initials: SM
authors.lastname: Sang
authors.forename: Z H
authors.initials: ZH
authors.lastname: Xia
authors.forename: A N
authors.initials: AN
authors.lastname: Lao
mesh_terms: D027983:Aralia / Q000737:chemistry*; D008516:Medicine, Chinese Traditional; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D009828:Oleanolic Acid / Q000031:analogs & derivatives; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D013055:Spectrophotometry, Infrared; D013237:Stereoisomerism; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D012503:Saponins; D014315:Triterpenes; C413246:oleanane; C447660:subcapitatoside B; C447661:subcapitatoside C; D009828:Oleanolic Acid