title: Saponins from Astragalus hareftae (NAB.) SIRJ.
abstract: Four cycloartane- (hareftosides A-D) and oleanane-type triterpenoids (hareftoside E) were isolated from Astragalus hareftae along with fifteen known compounds. Structures of the compounds were established as 3,6-di-O-β-D-xylopyranosyl-3β,6α,16β,24(S),25-pentahydroxycycloartane, 3,6,24-tri-O-β-D-xylopyranosyl-3β,6α,16β,24(S),25-pentahydroxycycloartane, 3-O-β-D-xylopyranosyl-3β,6α,16β,25-tetrahydroxy-20(R),25(S)-epoxycycloartane, 16-O-β-D-glucopyranosyl-3β,6α,16β,25-tetrahydroxy-20(R),24(S)-epoxycycloartane, 3-O-[β-D-xylopyranosyl-(1→2)-O-β-D-glucopyranosyl-(1→2)-O-β-D-glucuronopyranosyl]-soyasapogenol B by the extensive use of 1D- and 2D-NMR experiments along with ESI-MS and HR-MS analyses.
authors.affiliation: Department of Chemistry, Faculty of Science, Ege University, 35100 Bornova, İzmir, Turkey.
authors.forename: Ibrahim
authors.initials: I
authors.lastname: Horo
authors.forename: Erdal
authors.initials: E
authors.lastname: Bedir
authors.forename: Milena
authors.initials: M
authors.lastname: Masullo
authors.forename: Sonia
authors.initials: S
authors.lastname: Piacente
authors.forename: Fevzi
authors.initials: F
authors.lastname: Ozgökçe
authors.forename: Ozgen
authors.initials: O
authors.lastname: Alankuş-Çalışkan
mesh_terms: D007887:Fabaceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy / Q000592:standards; D008968:Molecular Conformation; D012015:Reference Standards; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D012503:Saponins