title: Four new triterpenoid saponins from the roots of Bupleurum rigidum.
abstract: Five triterpenoid saponins [buddlejasaponin IV, sandrosaponins VII (1), VIII (2), IX (3), and X (4)] were isolated from an n-BuOH extract of the roots of Bupleurum rigidum. Sandrosaponins VII-X (1-4) are new compounds, and their structures were established by 1D and 2D NMR techniques, FABMS, and chemical methods.
authors.affiliation: Laboratorio de Farmacognosia, Departamento de Farmacologia, Facultad de Farmacia, Universidad de Alcalá de Henares, Carretera Madrid-Barcelona, Km-33,600, 28871-Alcalá de Henares, Madrid, Spain.
authors.forename: S
authors.initials: S
authors.lastname: Sánchez-Contreras
authors.forename: A M
authors.initials: AM
authors.lastname: Díaz-Lanza
authors.forename: M
authors.initials: M
authors.lastname: Bernabé
mesh_terms: D019661:Apiaceae / Q000737:chemistry*; D002240:Carbohydrate Sequence; D002681:China; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000302:isolation & purification* / Q000494:pharmacology; D016339:Spectrometry, Mass, Fast Atom Bombardment; D014315:Triterpenes / Q000302:isolation & purification* / Q000494:pharmacology
chemical_list: D012503:Saponins; D014315:Triterpenes; C418227:buddlejasaponin IV