TY - JOUR
T1 - Steroidal saponins from the fruits of Solanum torvum
AU - Pérez Colmenares, Alida
AU - Rojas, Luis B.
AU - Mitaine-Offer, Anne Claire
AU - Pouységu, Laurent
AU - Quideau, Stéphane
AU - Miyamoto, Tomofumi
AU - Tanaka, Chiaki
AU - Paululat, Thomas
AU - Usubillaga, Alfredo
AU - Lacaille-Dubois, Marie Aleth
N1 - Funding Information:
The authors would like to thank the financial support of Consejo de Desarrollo Científico , Humanístico y Tecnológico (CDCHT-Mérida-Venezuela, project FA-507-11-08-A and SE-FA-04-12-03), FONACIT-PCP (46.255), University of Los Andes-Plan II and Forest Engineer Juan Carmona (MERF Herbarium, Faculty of Pharmacy and Bioanalysis, ULA) and Prof. Carmen Bénitez (Institute of Agricultural Botany, Faculty of Agronomy, UCV) for the identification of the botanical material.
PY - 2013/2
Y1 - 2013/2
N2 - Seven steroidal glycosides have been isolated from the fruits of Solanum torvum Swartz. Their structures were established by 2D NMR spectroscopic techniques (1H,1H-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).
AB - Seven steroidal glycosides have been isolated from the fruits of Solanum torvum Swartz. Their structures were established by 2D NMR spectroscopic techniques (1H,1H-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).
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U2 - 10.1016/j.phytochem.2012.10.010
DO - 10.1016/j.phytochem.2012.10.010
M3 - Article
C2 - 23218611
AN - SCOPUS:84872013140
SN - 0031-9422
VL - 86
SP - 137
EP - 143
JO - Phytochemistry
JF - Phytochemistry
ER -