title: Two new furostanol saponins from Tribulus terrestris.
abstract: Two new furostanol saponins were isolated from the fruits of Tribulus terrestris L. Their structures were established as 26-O-beta-D-glucopyranosyl-(25S)-5alpha-furost-20(22)-en-3beta,26-diol-3-O-alpha-L-rhamnopyranosyl-(1 --> 2)-[beta-D-glucopyranosyl-(1 --> 4)]-beta-D-galactopyranoside (1) and 26-O-beta-D-glucopyranosyl-(25S)-5alpha-furost-20(22)-en-12-one-3beta,26-diol-3-O-beta-D-galactopyranosyl-(1 --> 2)-beta-D-glucopyranosyl-(1 --> 4)-beta-D-galactopyranoside (2) on the basis of spectroscopic data as well as chemical evidence.
authors.affiliation: Academy of Traditional Chinese Medicine of Jilin Province, Changchun, China.
authors.forename: Ya-Juan
authors.initials: YJ
authors.lastname: Xu
authors.forename: Tun-Hai
authors.initials: TH
authors.lastname: Xu
authors.forename: Hai-Ou
authors.initials: HO
authors.lastname: Zhou
authors.forename: Bo
authors.initials: B
authors.lastname: Li
authors.forename: Sheng-Xu
authors.initials: SX
authors.lastname: Xie
authors.forename: Yun-Shan
authors.initials: YS
authors.lastname: Si
authors.forename: Yue
authors.initials: Y
authors.lastname: Liu
authors.forename: Tong-Hua
authors.initials: TH
authors.lastname: Liu
authors.forename: Dong-Ming
authors.initials: DM
authors.lastname: Xu
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D005638:Fruit / Q000737:chemistry; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D013237:Stereoisomerism; D013256:Steroids / Q000737:chemistry / Q000302:isolation & purification*; D032444:Tribulus / Q000737:chemistry*
chemical_list: C549773:26-O-beta-D-glucopyranosyl-(25S)-5-furost-20(22)-en-12-one-3beta,26-diol-3-O-beta-D-galactopyranosyl-(1-2)-beta-D-glucopyranosyl-(1-4)-beta-D-galactopyranoside; C549772:26-O-beta-D-glucopyranosyl-(25S)-5-furost-20(22)-en-3beta,26-diol-3-O-L-rhamnopyranosyl-(1-2)-(beta-D-glucopyranosyl-(1-4))-beta-D-galactopyranoside; D004365:Drugs, Chinese Herbal; D012503:Saponins; D013256:Steroids