title: Triterpenoid saponins from Verbascum songaricum.
abstract: From the aerial parts of Verbascum songaricum the two new triterpenoid saponins songarosaponin E, F and the known buddlejasaponin I have been isolated and identified as 3-O-([beta-D-glucopyranosyl-(1-->4)-beta-D- glucopyranosyl-(1-->3)]-[beta-D-glucopyranosyl-(1-->2)]-beta-D- fucopyranosyl)-olea-11,13-diene-3 beta, 23,28-triol, 3-O-([beta-D- glucopyranosyl-(1-->4)-beta-D-glucopyranosyl-(1-->3)]-[beta-D- glucopyranosyl- (1-->2)]-beta-D-fucopyranosyl)-olea-11,13-diene-3 beta, 16 beta, 23,28-tetrol and 3-O-([alpha-L-rhamnopyranosyl-(1-->4)-beta-D-glucopyranosyl-(1-->3)]- [beta-D-glucopyranosyl-(1-->2)]-beta-D-fucopyranosyl)-13 beta, 28-epoxyolea- 11-ene-3 beta, 16 beta, 23-triol.
authors.affiliation: University of Bayreuth, Germany.
authors.forename: I
authors.initials: I
authors.lastname: Hartleb
authors.forename: K
authors.initials: K
authors.lastname: Seifert
mesh_terms: D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008969:Molecular Sequence Data; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D012503:Saponins; D014315:Triterpenes