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https://hdl.handle.net/20.500.12921/322
Title: | New oleanane saponins from the roots of Dendrobangia boliviana identified by LC‐SPE‐NMR |
Authors: | Zebiri, Ilhem Gratia, Audrey Nuzillard, Jean Marc Haddad, Mohamed Cabanillas Amado, Billy Harakat, Dominique Voutquenne‐Nazabadioko, Laurence |
Keywords: | Dendrobangia boliviana Saponinas Ácidos grasos Espectroscopia RMN Amazonía Compuestos bioactivos |
Issue Date: | Nov-2017 |
Publisher: | Wiley |
Series/Report no.: | Magnetic Resonance in Chemistry; 55(11) : 1036-1055 |
Abstract: | A LC-SPE-NMR system efficiently contributed to the isolation and identification of five new oleanane saponins from the roots of Dendrobangia boliviana Rusby along with twelve known saponins previously isolated from this plant and of 3- O-βD - glucuronopyranosylphytolaccagenic acid, a compound identified from Diploclisia glaucescens. Their structures were established on the basis of spectral data, mainly HR-ESIMS, 1H-NMR, HSQC, and ROESY, and by comparison with literature data. All but one of these oleanane saponins are glycosides of serjanic or phytolaccinic acid. The remaining one contained a new sapogenin, the 3β,24-dihydroxy-olean-12-en-28,30-dioic acid, 30-methyl ester or 24-hydroxy-serjanic acid, tentatively named dendrobangionic acid. |
URI: | https://doi.org/10.1002/mrc.4619 https://hdl.handle.net/20.500.12921/322 |
ISSN: | 7491581 |
Appears in Collections: | Artículos en revistas indexadas |
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