title: Steroidal saponins from the fruits of Solanum torvum.
abstract: Seven steroidal glycosides have been isolated from the fruits of Solanum torvum Swartz. Their structures were established by 2D NMR spectroscopic techniques ((1)H,(1)H-COSY, TOCSY, NOESY, HSQC, and HMBC) and mass spectrometry as (25S)-26-(β-D-glucopyranosyloxy)-3-oxo-5α-furost-20(22)-en-6α-yl-O-β-D-xylopyranoside (1), (25S)-26-(β-D-glucopyranosyloxy)-3-oxo-22α-methoxy-5α-furostan-6α-yl-O-β-D-xylopyranoside (2), (25S)-26-(β-D-glucopyranosyloxy)-3β-hydroxy-22α-methoxy-5α-furostan-6α-yl-O-α-L-rhamnopyranosyl-(1→3)-β-D-glucopyranoside (3), (25S)-3β-hydroxy-5α-spirostan-6α-yl-O-β-D-xylopyranoside (4), (25S)-3-oxo-5α-spirostan-6α-yl-O-β-D-xylopyranoside (5), (25S)-3β-hydroxy-5α-spirostan-6α-yl-O-β-D-glucopyranoside (6), (25S)-3β,27-dihydroxy-5α-spirostan-6α-yl-O-β-D-glucopyranoside (7).
authors.affiliation: Laboratoire de Pharmacognosie, EA 4267 FDE/UFC, Faculté de Pharmacie, Université de Bourgogne, Dijon, France.
authors.forename: Alida Pérez
authors.initials: AP
authors.lastname: Colmenares
authors.forename: Luis B
authors.initials: LB
authors.lastname: Rojas
authors.forename: Anne-Claire
authors.initials: AC
authors.lastname: Mitaine-Offer
authors.forename: Laurent
authors.initials: L
authors.lastname: Pouységu
authors.forename: Stéphane
authors.initials: S
authors.lastname: Quideau
authors.forename: Tomofumi
authors.initials: T
authors.lastname: Miyamoto
authors.forename: Chiaki
authors.initials: C
authors.lastname: Tanaka
authors.forename: Thomas
authors.initials: T
authors.lastname: Paululat
authors.forename: Alfredo
authors.initials: A
authors.lastname: Usubillaga
authors.forename: Marie-Aleth
authors.initials: MA
authors.lastname: Lacaille-Dubois
mesh_terms: D005638:Fruit / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D012503:Saponins / Q000737:chemistry*; D032322:Solanum / Q000737:chemistry*
chemical_list: D012503:Saponins