title: Structure elucidation of three triterpenoid saponins from Alphitonia zizyphoides using 2D NMR techniques.
abstract: High-field nmr experiments have been used to determine the structures of three new saponins, zizyphoisides C, D, and E [1-3], isolated from Alphitonia zizyphoides, a medicinal plant found in the Samoan rain forest. The saponins consist of the aglycone, jujubogenin, to which are attached three sugar units and an unsaturated side-chain. The three compounds are similar except for the location of an acetyl group on one of the sugar units.
authors.affiliation: Department of Chemistry, Brigham Young University, Provo, Utah 84602.
authors.forename: D
authors.initials: D
authors.lastname: Li
authors.forename: N L
authors.initials: NL
authors.lastname: Owen
authors.forename: P
authors.initials: P
authors.lastname: Perera
authors.forename: C
authors.initials: C
authors.lastname: Andersson
authors.forename: L
authors.initials: L
authors.lastname: Bohlin
authors.forename: P A
authors.initials: PA
authors.lastname: Cox
authors.forename: R J
authors.initials: RJ
authors.lastname: Pugmire
authors.forename: C L
authors.initials: CL
authors.lastname: Mayne
authors.forename: D M
authors.initials: DM
authors.lastname: Grant
mesh_terms: D002240:Carbohydrate Sequence; D014905:Independent State of Samoa; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008969:Molecular Sequence Data; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry*
chemical_list: D012503:Saponins; D014315:Triterpenes; C087102:zizyphoiside C; C087103:zizyphoiside D; C087104:zizyphoiside E