Artículos de revistas
Three dibenzoylmethane derivatives from Lonchocarpus species
Registro en:
Phytochemistry. Pergamon-elsevier Science Ltd, v. 46, n. 6, n. 1029, n. 1033, 1997.
0031-9422
WOS:A1997YH45900010
10.1016/S0031-9422(97)00340-3
Autor
Magalhaes, AF
Tozzi, AMA
Magalhaes, EG
Blanco, IS
Nogueira, MA
Institución
Resumen
Three new dibenzoylmethane derivatives were isolated from petrol extracts of the roots of Lonchocarpus latifalius and L. muehlbergianus. Molecular structures were determined from spectroscopic data, especially NMR techniques. An alkyl group bonded to the central carbon (C-8) of a natural dibenzoylmethane, had not been found before. Spectral data analysis suggested a preponderance of the respective diketotautomers. (C) 1997 Elsevier Science Ltd. 46 6 1029 1033