Gentisic acid conjugates of Medicago truncatula roots.
Three phenolic glycosides 5-O-{[5''-O-E-(4'''-O-threo-guaiacylglycerol)-feruloyl]-beta-apiofuranosyl-(1-->2)-beta-xylopyranosyl} gentisic acid, 5-O-[(5''-O-vanilloyl)-beta-apiofuranosyl-(1-->2)-beta-xylopyranosyl] gentisic acid and 1-O-[E-(4'''-O-threo-guaiacylglycerol)-feruloyl]-3-O-beta-galacturonopyranosyl glycerol were isolated and identified from the roots of Medicago truncatula together with four known 5-O-beta-xylopyranosyl gentisic acid, vicenin-2, hovetrichoside C and pterosupin identified for the first time in this species. Structural elucidation was carried out on the basis of UV, mass, (1)H and (13)C NMR spectral data.
Stochmal
Anna
A
Department of Biochemistry, Institute of Soil Science and Plant Cultivation, State Research Institute, 24-100 Pulawy, Poland. asf@iung.pulawy.pl
Kowalska
Iwona
I
Janda
Bogdan
B
Perrone
Angela
A
Piacente
Sonia
S
Oleszek
Wiesław
W
D005841:Gentisates / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D046913:Medicago truncatula / Q000737:chemistry*; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry*
D005841:Gentisates; D006027:Glycosides; C010925:2,5-dihydroxybenzoic acid