New isoflavone derivative and other flavonoids from the resin of Amburana cearensis

Journal of the Brazilian Chemical Society

Paulo N Bandeira²  Silvana S. De Farias²  Telma L. G Lemos¹  Raimundo Braz-filho¹  Hélcio S Santos²  Maria R. J. R Albuquerque²  Sônia M. O Costa¹ 

[1] ,Universidade Estadual Vale do Acaraú Laboratório de Química Orgânica Sobral CE ,Brazil

关键词: Amburana cearensis;    resin;    phytochemical investigation;    flavonoids;   

DOI  :  10.1590/S0103-50532011000200025

来源: SciELO

【 摘 要 】

Phytochemical investigation of the resin of Amburana cearensis A. C. Smith allowed the isolation of a new compound: 3',4'-dimethoxy-1'-(7-methoxy-4-oxo-4H-cromen-3-yl)benzo-2',5'-quinone (1), together with six known compounds identified as: 4,2',4'-trihydroxychalcone (2), 7,8,3',4'-tetramethoxyisoflavone (3), 4,2',4'-trihydroxy-3-methoxychalcone (4), 3,4,5-trimethoxycinnamaldehyde (5), 3',4'-dimethoxy-7-hydroxyisoflavone (6) and 6,7,4'-trimethoxy-3'-hydroxyisoflavone (7). The structures were established from the IR, HR-ESI-MS and NMR spectral data, including 2D-NMR experiments.

【 授权许可】

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