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A new tetranortriterpenoid from Trichilia havanensis
Benjamín Rodríguez1, Cristina Caballero, Félix Ortego
1Instituto de Química Orgánica, Consejo Superior de Investigaciones Científicas (CSIC), Juan de la Cierva 3, E-28006 Madrid, Spain. iqor107@iqog.csic.es
Journal of Natural Products
|March 29, 2003
Abstract:
A new triterpenoid, 1beta,2beta;21,23-diepoxy-7alpha-hydroxy-24,25,26,27-tetranor-apotirucalla-14,20,22-trien-3-one (1), has been isolated from an acetone extract of seeds of Trichilia havanensis, along with other known limonoids. The structure of 1 was established by spectroscopic methods, particularly by 1D and 2D NMR studies. Compound 1 was tested as an antifeedant agent against Leptinotarsa decemlineata larvae, showing a significant antifeedant activity at 300 ppm.