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

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dc.contributor.author García-Beltrán, Olimpo
dc.contributor.author Soto-Delgado, Jorge
dc.contributor.author Iturriaga-Vásquez, Patricio
dc.contributor.author Areche, Carlos
dc.contributor.author Cassels, Bruce K.
dc.date.accessioned 2013-10-22T18:50:39Z
dc.date.accessioned 2016-05-24T20:24:17Z
dc.date.available 2013-10-22T18:50:39Z
dc.date.available 2016-05-24T20:24:17Z
dc.date.issued 2012
dc.identifier.citation Journal of the Chilean Chemical Society, Vol. 57, N° 3, pp. 1323-1327, 2012.
dc.identifier.issn ISSN: 0717-9707
dc.identifier.other http://dx.doi.org/10.4067/S0717-97072012000300027
dc.identifier.uri http://repositorio.unab.cl/xmlui/handle/ria/1951
dc.description Indexación: Web of Science; Scielo
dc.description.abstract The 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.uri http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072012000300027&nrm=iso
dc.language.iso en
dc.publisher Sociedad Chilena de Química
dc.subject Erythrina alkaloids
dc.subject Erythrina fusca
dc.subject Epierythratidine
dc.subject 1H NMR
dc.subject 13C NMR
dc.subject 2D NMR
dc.subject GIAO/DFT methods
dc.title Structural reassignment of epierythratidine, an alkaloid from erythrinafusca, based on NMR studies and computational methods
dc.type Artículo de revista
dc.rights.holder © 2013 Sociedad Chilena de Química


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