Metabólitos secundários de Esenbeckia almawillia Kaastra (Rutaceae)

AUTOR(ES)

Barros-Filho, Bartholomeu A., Nunes, Fátima M., Oliveira, Maria da Conceição F. de, Andrade-Neto, Manoel, Mattos, Marcos C. de, Barbosa, Francisco G., Mafezoli, Jair, Pirani, José R.

FONTE

Química Nova

DATA DE PUBLICAÇÃO

2007

RESUMO

The phytochemical investigation of the roots of E. almawillia is reported for the first time. Chromatographic fractionation of the methanol extract allowed the isolation of the alkaloids 3,3-diisopentenyl-N-methyl-2,4-quinoldione (1), maculine (2) and 3'-methoxygraveoline (3), (E)-N-isobutyl-3-methoxy-4,5-methylenedioxicinnamoyl amide (4), the flavones gardenine B (5) and nevadensin (6), and the sesquiterpene intermediol (7). Structure elucidation was based on the analysis of their spectrometric data (uni- and bidimensional ¹H and 13C NMR, MS and IR) and comparison with literature data. Compounds 3-7 are being reported as constituents of Esenbeckia species for the first time.

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