Xanthones from the Roots of Moutabea guianensis Aubl.
AbstractThe phytochemical investigation of Moutabea guianensis roots led to the isolation of five polyoxygenated xanthones, including two new ones named moutabeone B (1,8-dihydroxy-4,5,6,7-tetramethoxyxanthone) and moutabeone C (1-hydroxy-4,5,6,7,8-pentamethoxyxanthone), along with the three known xanthones, 1,8-dihydroxy-4,6-dimethoxyxanthone, 1,8-dihydroxy-4,5,6-trimethoxyxanthone and augustin A (1,8-dihydroxy-4,6,7-trimethoxyxanthone). Structural characterization of all compounds was established on the basis of spectroscopic methods, mainly 1D and 2D nuclear magnetic resonance (NMR) and comparison with literature data. The antioxidant activity of compounds was tested through a thin layer chromatography (TLC) bioautography assay using 1,1-diphenyl-2-picryl-hydrazyl radical (DPPH·) as detection reagent. All tested compounds were more active (DL < 0.13–0.03 µg) than Trolox (DL < 0.15 µg), used as reference standard. View Full-Text
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Filho, H.S.R.; Pacheco, L.C.; Andrade, E.S.; Correa, M.J.C.; Araújo, R.N.M.; Guilhon, G.M.S.P.; Silva, J.K.R.; Santos, L.S. Xanthones from the Roots of Moutabea guianensis Aubl.. Molecules 2015, 20, 127-134.
Filho HSR, Pacheco LC, Andrade ES, Correa MJC, Araújo RNM, Guilhon GMSP, Silva JKR, Santos LS. Xanthones from the Roots of Moutabea guianensis Aubl.. Molecules. 2015; 20(1):127-134.Chicago/Turabian Style
Filho, Haroldo S.R.; Pacheco, Luidi C.; Andrade, Edinaldo S.; Correa, Marivaldo J.C.; Araújo, Railda N.M.; Guilhon, Giselle M.S.P.; Silva, Joyce K.R.; Santos, Lourivaldo S. 2015. "Xanthones from the Roots of Moutabea guianensis Aubl.." Molecules 20, no. 1: 127-134.