New antioxidant C-glucosylxanthones from the stems of Arrabidaea samydoides

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dc.contributor.authorPauletti, P. M.
dc.contributor.authorCastro-Gamboa, I
dc.contributor.authorSilva, DHS
dc.contributor.authorYoung, MCM
dc.contributor.authorTomazela, D. M.
dc.contributor.authorEberlin, M. N.
dc.contributor.authorBolzani, Vanderlan da Silva [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInst Bot
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2014-05-20T15:27:05Z
dc.date.available2014-05-20T15:27:05Z
dc.date.issued2003-10-01
dc.description.abstractThree new C-glucosylxanthones, 2-(2'-O-trans-caffeoyl)-C-beta-D-glucopyranosyl-1,3,6,7-tetrahydroxyxanthone (1), 2-(2'-O-trans-cinnamoyl)-C-beta-D-glucopyranosyl-1,3,6,7-tetrahydroxyxanthone (2), and 2-(2'-O-trans-coumaroyl)-C-beta-D-glucopyranosyl-1,3,6,7-tetrahydroxyxanthone (3), were isolated from the stems of Arrabidaea samydoides, in addition to three known C-glucosylxanthones, mangiferin (4), 2-(2'-O-benzoyl)-C-beta-D-glucopyranosyl-1,3,6,7-tetrahydroxyxanthone (5), and muraxanthone (6). Their chemical structures were assigned on the basis of MS and 1D and 2D NMR experiments. Xanthones 1-6 showed moderate free radical scavenging activity against 1,1-diphenyl-2-picrylhydrazyl (DPPH) as well as antioxidant activity evidenced by redox properties measured on ElCD-HPLC.en
dc.description.affiliationUNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil
dc.description.affiliationInst Bot, Seccao Fisiol & Bioquim Plantas, BR-01061970 São Paulo, Brazil
dc.description.affiliationUNICAMP, Inst Quim, Thompson Mass Spectroscopy Lab, BR-13083970 Campinas, SP, Brazil
dc.description.affiliationUnespUNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil
dc.format.extent1384-1387
dc.identifierhttp://dx.doi.org/10.1021/np030100t
dc.identifier.citationJournal of Natural Products. Washington: Amer Chemical Soc, v. 66, n. 10, p. 1384-1387, 2003.
dc.identifier.doi10.1021/np030100t
dc.identifier.issn0163-3864
dc.identifier.lattes4702004904231248
dc.identifier.lattes4484083685251673
dc.identifier.urihttp://hdl.handle.net/11449/37138
dc.identifier.wosWOS:000186237800018
dc.language.isoeng
dc.publisherAmer Chemical Soc
dc.relation.ispartofJournal of Natural Products
dc.relation.ispartofjcr3.885
dc.relation.ispartofsjr1,368
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleNew antioxidant C-glucosylxanthones from the stems of Arrabidaea samydoidesen
dc.typeArtigo
dcterms.licensehttp://pubs.acs.org/paragonplus/copyright/jpa_form_a.pdf
dcterms.rightsHolderAmer Chemical Soc
unesp.author.lattes4702004904231248
unesp.author.lattes4484083685251673
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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