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. 2013 Dec:96:312-7.
doi: 10.1016/j.phytochem.2013.08.006. Epub 2013 Sep 10.

Rings B,D-seco limonoid antifeedants from Swietenia mahogani

Affiliations

Rings B,D-seco limonoid antifeedants from Swietenia mahogani

Samir A M Abdelgaleil et al. Phytochemistry. 2013 Dec.

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.

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