Rings B,D-seco limonoid antifeedants from Swietenia mahogani
- PMID: 24034555
- DOI: 10.1016/j.phytochem.2013.08.006
Rings B,D-seco limonoid antifeedants from Swietenia mahogani
Abstract
Three phragmalin-type limonoids, swietephragmin H (1), swietephragmin I (2) and 11-hydroxyswietephragmin B (3), and a mexicanolide-type limonoid 2-hydroxy-6-deacetoxyswietenine (4), together with known compounds, 6-O-acetyl-2-hydroxyswietenin (5), 2-hydroxyswietenine (6), swietemahonin G (7), methyl 6-hydroxyangolensate (8) and 7-deacetoxy-7-oxogedunin (9) were isolated from the leaves of Swietenia mahogani (Meliaceae). Their structures were established by extensive NMR experiments in conjunction with mass spectrometry. The antifeedant activity of the isolated compounds was evaluated.
Keywords: Insect antifeedants; Meliaceae; Mexicanolides; Phragmalins; Rings B,D-seco limonoids; Swietenia mahogani.
Copyright © 2013 Elsevier Ltd. All rights reserved.
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