title: Benzophenone glycosides from Hypericum humifusum ssp. austral.
abstract: Six new benzophenone glycosides, 2,3',4,5',6-pentahydroxybenzophenone 4-O-(6″-benzoyl)-β-d-glucopyranoside (1), 2,3',4,5',6-pentahydroxybenzophenone 4-O-β-d-glucopyranoside (2), 2,3',4,5',6-pentahydroxybenzophenone 2-O-(2″-benzoyl)-α-l-arabinopyranoside (3), 2,3',4,5',6-pentahydroxybenzophenone 2-O-α-l-arabinopyranoside (4), 2,3',4,5',6-pentahydroxybenzophenone 2-O-(4″-acetyl)-β-d-xylopyranoside (5), and 2,3',4,5',6-pentahydroxybenzophenone 3-C-(4″-benzoyl)-β-d-glucopyranoside (6), and five known compounds were isolated from the aerial parts of Hypericum humifusum ssp. austral. The structures of 1-6 were elucidated by mass spectrometry and extensive 1D and 2D NMR spectroscopy.
authors: Laboratoire des Maladies Transmissibles et Substances Biologiquement Actives LR99ES27, Faculté de Pharmacie, Université de Monastir, Avenue Avicenne 5000, Monastir, Tunisia.
authors: Zyed
authors: Z
authors: Rouis
authors: Nabil
authors: N
authors: Abid
authors: Mahjoub
authors: M
authors: Aouni
authors: Laura
authors: L
authors: Faiella
authors: Fabrizio
authors: F
authors: Dal Piaz
authors: Nunziatina
authors: N
authors: De Tommasi
authors: Alessandra
authors: A
authors: Braca
mesh_terms: D001577:Benzophenones / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D020902:Hypericum / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D013237:Stereoisomerism; D014416:Tunisia
chemical_list: D001577:Benzophenones; D006027:Glycosides