7Beta-oxygenated limonoids from Trichilia elegans ssp. elegans.

Garcez, F R; Garcez, W S; Roque, N F; Castellano, E E; Zukerman-Schpector, J

Garcez, F R; Garcez, W S; Roque, N F; Castellano, E E; Zukerman-Schpector, J.

Afiliação

Garcez FR; Departamento de Química, Universidade Federal de Mato Grosso do Sul, MS, Brazil. frgarcez@nin.ufms.br

Phytochemistry ; 55(7): 733-40, 2000 Dec.

Article em En | MEDLINE | ID: mdl-11190389

RESUMO

Five 7beta- and 7alpha-oxygenated obacunone-type limonoids were obtained on reinvestigation of the seeds of Trichilia elegans ssp. elegans: 7-deoxo-7beta-acetoxykihadanins A and B, 7-deoxo-7beta-hydroxykihadanins A and B and 7-deoxo-7alpha-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 beta-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.

Assuntos

Flavonoides/isolamento & purificação; Oxigênio/química; Rosales/química; Flavonoides/química; Estrutura Molecular; Análise Espectral

Buscar no Google

Adicionar na Minha BVS

Imprimir

XML

PubMed Links

Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Oxigênio / Flavonoides / Rosales Idioma: En Revista: Phytochemistry Ano de publicação: 2000 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido

Buscar no Google

Adicionar na Minha BVS

Imprimir

XML

PubMed Links