title: Gentisic acid conjugates of Medicago truncatula roots.
abstract: 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.
authors.affiliation: Department of Biochemistry, Institute of Soil Science and Plant Cultivation, State Research Institute, 24-100 Pulawy, Poland. asf@iung.pulawy.pl
authors.forename: Anna
authors.initials: A
authors.lastname: Stochmal
authors.forename: Iwona
authors.initials: I
authors.lastname: Kowalska
authors.forename: Bogdan
authors.initials: B
authors.lastname: Janda
authors.forename: Angela
authors.initials: A
authors.lastname: Perrone
authors.forename: Sonia
authors.initials: S
authors.lastname: Piacente
authors.forename: Wiesław
authors.initials: W
authors.lastname: Oleszek
mesh_terms: 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*
chemical_list: D005841:Gentisates; D006027:Glycosides; C010925:2,5-dihydroxybenzoic acid