title: Puberosides C-E, triterpenoid saponins from Glochidion puberum.
abstract: Three new triterpenoid glycosides, named puberosides C-E (1-3), were isolated from the water-soluble fraction of Glochidion puberum (Linn.) Hutch. Their structures were determined as 3α-[(O-β-d-glucopyranosyl-(1 → 3)-O-α-l-arabinopyranosyl)oxy]-22α-trans-cinnamoyl-olean-12-ene-16α,28-diol, 3α-[(O-β-d-glucopyranosyl-(1 → 3)-O-α-l-arabinopyranosyl)oxy]-22α-cis-cinnamoyl-olean-12-ene-16α,28-diol, and 3α-[(O-β-d-glucopyranosyl-(1 → 3)-O-β-d-glucopyranosyl)oxy]-22α-benzoyloxy-olean-12-ene-16α,28-diol by the combination of 1D, 2D NMR, and MS spectral analyses.
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650204, China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Zhang
authors.forename: Xin
authors.initials: X
authors.lastname: Fang
authors.forename: Yue-Hu
authors.initials: YH
authors.lastname: Wang
authors.forename: Guang-Ming
authors.initials: GM
authors.lastname: Liu
authors.forename: Huai
authors.initials: H
authors.lastname: Xiao
authors.forename: Xiao-Jiang
authors.initials: XJ
authors.lastname: Hao
authors.forename: Hong-Ping
authors.initials: HP
authors.lastname: He
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D019665:Euphorbiaceae / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D013237:Stereoisomerism; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D004365:Drugs, Chinese Herbal; D012503:Saponins; D014315:Triterpenes; C561903:puberoside C; C561905:puberoside D; C561904:puberoside E