Insect antifeedants from Munronia henryi: structure of munroniamide |
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| Authors: | Qi Shu-Hua Wu Da-Gang Chen Li Ma Yun-Bao Luo Xiao-Dong |
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| Affiliation: | State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, The Chinese Academy of Sciences, Kunming 650204, Yunnan, People's Republic of China. |
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| Abstract: | A novel A,B-seco-tetranortriterpenoid lactam, named munroniamide (1), along with three known ceramides (2-4), was isolated from the methanolic extract of the whole bodies of Munronia henryi. The structure of 1 was established using spectroscopic methods. Compound 2 exhibited significant antifeeding activity, and 1 exhibited moderate activity, whereas 3 and 4 showed negative activity against Pieris brassicae L. |
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