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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
Ácidos grasos
Espectroscopia RMN
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.
ISSN: 7491581
Appears in Collections:Artículos en revistas indexadas

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