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metadata.dc.type: | Artigo de Periódico |
Título : | 7β-Oxygenated limonoids from Trichilia elegans ssp. elegans |
Otros títulos : | Phytochemistry |
Autor : | Roque, Nídia Franca Garcez, Fernanda R. Garcez, Walmir S. Castellano, Eduardo Ernesto Zukerman Schpector, Julio |
metadata.dc.creator: | Roque, Nídia Franca Garcez, Fernanda R. Garcez, Walmir S. Castellano, Eduardo Ernesto Zukerman Schpector, Julio |
Resumen : | Five 7β- and 7α-oxygenated obacunone-type limonoids were obtained on reinvestigation of the seeds of Trichilia elegans ssp. elegans: 7-deoxo-7β-acetoxykihadanins A and B, 7-deoxo-7β-hydroxykihadanins A and B and 7-deoxo-7α-hydroxykihadanin A, the last three being isolated after acetylation procedures as their mono- and/or diacetate derivatives. This is the first report of the natural occurrence of C-7 β-substituted limonoids without any oxygenated function at C-6. The structures of these compounds have been established on the basis of 1D- and 2D-NMR spectral techniques, ESI-mass spectrum and X-ray crystallographic data. |
Palabras clave : | Trichilia elegans ssp. elegans Meliaceae Limonoids 7-Deoxo-7β-acetoxykihadanin A 7-Deoxo-7β-acetoxykihadanin B 7-Deoxo-7β-hydroxykihadanin A 7-Deoxo-7β-hydroxykihadanin B 7-Deoxo-7α-hydroxykihadanin A X-ray analysis |
Editorial : | Elsevier |
URI : | http://www.repositorio.ufba.br/ri/handle/ri/7254 |
Fecha de publicación : | dic-2000 |
Aparece en las colecciones: | Artigo Publicado em Periódico (Química) |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
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Garcez.pdf Restricted Access | 305,24 kB | Adobe PDF | Visualizar/Abrir Request a copy |
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