Insect antifeedants from tropical plants: structures of dumnin and dumsenin |
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| Authors: | Nihei Ken-Ichi Asaka Yukihiro Mine Yoshihiro Ito Chihiro Furukawa Hiroshi Ju-Ichi Motoharu Kubo Isao |
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| Institution: | Department of Environmental Science, Policy and Management, University of California, Berkeley, California 94720-3112, USA. |
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| Abstract: | Two novel A-seco limonoids, dumnin and dumsenin, were isolated from the methanolic extract of Croton jatrophoides by bioassay-guided fractionation, and the structures were determined by nuclear magnetic resonance, circular dichroism, and mass spectrometry experiments. These compounds showed potent antifeedant activity (PC(50)
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