Swietenialides, novel ring D opened phragmalin limonoid orthoesters from Swietenia mahogani JACQ. |
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| Authors: | Mona MG SaadTetsuo Iwagawa Matsumi DoeMunehiro Nakatani |
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| Institution: | a Faculty of Science, Department of Chemistry and Bioscience, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan
b Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshiku, Osaka 558-8585, Japan |
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| Abstract: | Three novel ring D opened limonoids corresponding to the phragmalin 8,9,14-orthoacetate with the addition of methyl 2,30-orthoacetate or a propionate, swietenialides A, B, and C and two ring-D opened phragmalin-type 1,8,9-orthoacetates, swietenialides D and E, were isolated together with one known mexicanolide, 2-hydroxyswietenin, from the ether extract of the stem bark of Swietenia mahogani JACQ. (Meliaceae). The structure of these unique compounds was elucidated by spectroscopic means. |
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| Keywords: | swietenialides A-E ring D opened phrogmalin limonoids 8 9 14- and 1 8 9-orthoacetyl groups methoxy 2 30-orthoacetate diorthoester compounds antifeedant activity Swietenia mahogany JACQ Meliaceae |
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