title: [Isolation and identification of two new saponins from Bupleurum smithii Wolff].
abstract: Two new saikosaponins of oleanane type were isolated from the roots of Bupleurum smithii Wolff, collected in Minhe County, Qinghai, namely saikosaponin k (VIb) and saikosaponin 1 (VIII). Their structures were elucidated on the basis of spectral analysis of UV, IR, 1HNMR, 13CNMR and FAB-MS. Saikosaponin k (VIb) was identified as 3 beta, 16 beta, 23,28-tetrahydroxyoleana-11,13(18)-dien-3-O-beta-D-xylopyranosyl-(1-->2)-beta- D-glucopyranosyl-(1-->3)-beta-D-fucopyranoside, and saikosaponin 1 (VIII) as 3 beta, 16 alpha, 23,28,30-pentahydroxyoleana-11,13(18)-dien-3-O-beta-D- glucopyranosyl-(1-->3)-beta-D-fucopyranoside, respectively.
authors.affiliation: School of Pharmaceutical Science, Beijing Medical University.
authors.forename: X K
authors.initials: XK
authors.lastname: Chen
authors.forename: R Y
authors.initials: RY
authors.lastname: Zhang
authors.forename: Z L
authors.initials: ZL
authors.lastname: Zhang
authors.forename: T Y
authors.initials: TY
authors.lastname: Jiang
authors.forename: B
authors.initials: B
authors.lastname: Wang
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D015394:Molecular Structure; D009828:Oleanolic Acid / Q000031:analogs & derivatives*; D012502:Sapogenins / Q000737:chemistry / Q000302:isolation & purification*; D012503:Saponins
chemical_list: D004365:Drugs, Chinese Herbal; D012502:Sapogenins; D012503:Saponins; D009828:Oleanolic Acid; C025759:saikosaponin D