Structural reassignment of epierythratidine, an alkaloid from erythrinafusca, based on NMR studies and computational methods

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dc.contributor.authorGarcía-Beltrán, Olimpo
dc.contributor.authorSoto-Delgado, Jorge
dc.contributor.authorIturriaga-Vásquez, Patricio
dc.contributor.authorAreche, Carlos
dc.contributor.authorCassels, Bruce K.
dc.date.accessioned2013-10-22T18:50:39Z
dc.date.accessioned2016-05-24T20:24:17Z
dc.date.available2013-10-22T18:50:39Z
dc.date.available2016-05-24T20:24:17Z
dc.date.issued2012
dc.descriptionIndexación: Web of Science; Scielo
dc.description.abstractThe diene Erythrina alkaloids erysotrine (1), erysodine (2), erythraline (3), erytharbine (4), and erysotrine N-oxide (5), plus the hydroxylated dihydro derivative of 1, epierythratidine (6) were isolated from seeds of Erythrina fusca Lour., and their 1H and 13C NMR spectra were completely assigned using 2D experiments (H-H COSY, HMQC, HMBC and H-H NOESY). Our assignments for 1-5 agree well with the literature, but the present work shows that the published interpretation of the spectra of 6 must be revised. A combined study based on NMR data and quantum-mechanical calculations using DFT/GIAO indicate that 6 is the correct structure of epierythratidine.en
dc.description.urihttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072012000300027&nrm=iso
dc.identifier.citationJournal of the Chilean Chemical Society, Vol. 57, N° 3, pp. 1323-1327, 2012.
dc.identifier.issnISSN: 0717-9707
dc.identifier.otherhttp://dx.doi.org/10.4067/S0717-97072012000300027
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/1951
dc.language.isoen
dc.publisherSociedad Chilena de Química
dc.rights.holder© 2013 Sociedad Chilena de Química
dc.subjectErythrina alkaloids
dc.subjectErythrina fusca
dc.subjectEpierythratidine
dc.subject1H NMR
dc.subject13C NMR
dc.subject2D NMR
dc.subjectGIAO/DFT methods
dc.titleStructural reassignment of epierythratidine, an alkaloid from erythrinafusca, based on NMR studies and computational methods
dc.typeArtículo
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