Biflavonoids and a glucopyranoside derivative from Ouratea semiserrata.

dc.contributor.authorVelandia, Javier Rincon
dc.contributor.authorCarvalho, Mário Geraldo de
dc.contributor.authorBraz Filho, Raimundo
dc.contributor.authorWerle, Alceni Augusta
dc.date.accessioned2017-05-18T12:30:27Z
dc.date.available2017-05-18T12:30:27Z
dc.date.issued2002
dc.description.abstractTwo new biflavonoids, 5-hydroxy-7-methoxyflavone-(4 →O→8 )-4 ,5 ,7 -trihydroxyflavone and 5-hydroxy- 7-methoxyflavone-(4 →O→8 )-5 ,7 -dihydroxy-4 -methoxyflavone, and the glucopyranoside derivative, 1-O-(4-hydroxyphenyl)-6-O-(4-hydroxybenzoyl)- -D-glucopyranoside, as well as the known biflavones lanaraflavone, amentoflavone and podocarpusflavone, the triterpenes lupeol and friedelin, the lignans eudesmin and epieudesmin, the flavonol glycoside rutin, the steroids -sitosterol, stigmasterol, 3 - O- -D-glucopyranosylsitosterol, 7-oxostigmast-5-en-3 -ol and 7-oxostigmasta-5,22-dien-3 -ol, the carbohydrates - and -glucopyranose and 1-O-(4-hydroxybenzoyl)- -D-glucopyranoside, and the norsesquiterpene 6,9-dihydroxymegastigma-4,7-dien-3-one, have been isolated from leaves and branches of Ouratea semiserrata. The structures of these compounds were established from spectral data, including twodimensional NMR experiments and mass spectra.pt_BR
dc.identifier.citationVELANDIA, J. R. et al. Biflavonoids and a glucopyranoside derivative from Ouratea semiserrata. Phytochemical Analysis, v. 13, n.1, p. 283-292, 2002. Disponível em: <http://onlinelibrary.wiley.com/doi/10.1002/pca.656/epdf>. Acesso em: 20 abr. 2017.pt_BR
dc.identifier.doihttps://doi.org/10.1002/pca.656
dc.identifier.issn 1099-1565
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/7758
dc.identifier.uri2http://onlinelibrary.wiley.com/doi/10.1002/pca.656/epdfpt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.subjectTwo-dimensional NMR spectroscopypt_BR
dc.subjectMass spectroscopypt_BR
dc.subjectBiflavonespt_BR
dc.subjectGlucopyranoside derivativespt_BR
dc.titleBiflavonoids and a glucopyranoside derivative from Ouratea semiserrata.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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