Journal of the Brazilian Chemical Society
versión impresa ISSN 0103-5053
CAVALCANTE, Maria Gilvânia B. et al. Furanoflavones and other chemical constituents of Lonchocarpus obtusos. J. Braz. Chem. Soc. [online]. 2012, vol.23, n.2, pp. 301-305. ISSN 0103-5053. http://dx.doi.org/10.1590/S0103-50532012000200016.
Two new furanoflavonoids, 5-hydroxy-2’’-isopropenyl-3-methoxyfurane-(2",3":7,8)-flavone and 5-hydroxy-2’’-(1-hydroxy-1-methylethyl)-3-methoxyfurane-(2",3":7,8)-flavone, along with thirteen other known compounds, were isolated from the root barks of Lonchocarpus obtusus (Leguminosae). The structures of all compounds were determined by spectrometric methods such as 1D and 2D NMR (COSY, HSQC and HMBC) and HREISMS beside comparison with spectral data for similar compounds.
Palabras llave : Lonchocarpus obtusos; Leguminosae; furanoflavonoids; flavones.