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  • Title: A new tetranortriterpenoid from Trichilia havanensis.
    Author: Rodríguez B, Caballero C, Ortego F, Castañera P.
    Journal: J Nat Prod; 2003 Mar; 66(3):452-4. PubMed ID: 12662115.
    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.
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