title: A novel furostanol saponin from Tribulus terrestris of Bulgarian origin.
abstract: The phytochemical investigation of the aerial parts of Tribulus terrestris of Bulgarian origin has resulted in the isolation of the novel furostanol saponin 1, named tribol, together with the known spirostanol saponins 2 and 3 and sitosterol glucoside. The structure of tribol was determined as (25R)-furost-5(6)-ene-3beta,16,26-triol-3-O-alpha-rhamnopyranosyl-(1-->2)-[alpha-rhamnopyranosyl-(1-->4)]-beta-glucopyranoside (1) by spectral analysis, including extensive 1D and 2D-NMR experiments.
authors.affiliation: Department of Chemistry, University of Hohenheim, 70593 Stuttgart, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Conrad
authors.forename: D
authors.initials: D
authors.lastname: Dinchev
authors.forename: I
authors.initials: I
authors.lastname: Klaiber
authors.forename: S
authors.initials: S
authors.lastname: Mika
authors.forename: I
authors.initials: I
authors.lastname: Kostova
authors.forename: W
authors.initials: W
authors.lastname: Kraus
mesh_terms: D002031:Bulgaria; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008519:Medicine, Traditional; D008517:Phytotherapy; D035261:Plant Components, Aerial; D010936:Plant Extracts / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry; D032444:Tribulus
chemical_list: D010936:Plant Extracts; D012503:Saponins