title: [New triterpenoids saponins from Helianthus annuus].
abstract: Three new bisdesmosidic triterpenoid saponins, helianthoside 1(1), 2(2), and 3(3), were isolated from the flowers of Helianthus annuus L. and a new monodesmoside 4 was isolated after the cleavage of the ester-glycosidic linkages of 2 and 3. The structures of the compounds were elucidated by 13C-NMR, FAB-MS, GC/EI-MS of partially methylated alditol acetates and degradation methods.
authors.affiliation: Fachbereich Pharmazie, Humboldt-Universität zu Berlin, Federal Republic of Germany.
authors.forename: G
authors.initials: G
authors.lastname: Bader
authors.forename: M
authors.initials: M
authors.lastname: Zieschang
authors.forename: K
authors.initials: K
authors.lastname: Wagner
authors.forename: E
authors.initials: E
authors.lastname: Gründemann
authors.forename: K
authors.initials: K
authors.lastname: Hiller
mesh_terms: D002240:Carbohydrate Sequence; D006368:Helianthus / Q000737:chemistry*; D008969:Molecular Sequence Data; D015394:Molecular Structure; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D012503:Saponins; D014315:Triterpenes
vernacular_title: Neue Triterpensaponine aus Helianthus annuus.