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.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Coleoptera / drug effects
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Feeding Behavior / drug effects
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Larva / drug effects
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Limonins / chemistry
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Limonins / isolation & purification*
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Limonins / pharmacology
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Meliaceae / chemistry*
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Mexico
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Molecular Structure
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Nuclear Magnetic Resonance, Biomolecular
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Plants, Medicinal / chemistry*
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Seeds / chemistry
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Stereoisomerism
Substances
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1beta,2beta;21,23-diepoxy-7alpha-hydroxy-24,25,26,27-tetranor-apotirucalla-14,20,22-trien-3-one
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Limonins