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Updated: Jun 19, 2026

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Published on: August 23, 2018
Two new insecticidal sesquiterpene esters from Euonymus japonicus
Qidong Zhang1, Zhiqing Ji, Mingan Wang
1Department of Plant Protection, Northwestern Agricultural University, Yangling, Shaanxi 712100, People's Republic of China.
Abstract:
Two new insecticidal sesquiterpene esters with a beta-dihydroagarofuran sesquiterpene skeleton, ejaponine A (1) and ejaponine B (2), and two known compounds, 3 and 4, were isolated from the EtOAc extract of the root bark of Euonymus japonicus Thunb. by bioassay-guided fractionation. Their chemical structures were elucidated mainly by analysis of MS and NMR spectral data. The LD50 values of ejaponine A (1), ejaponine B (2), 3 and 4 showed against Mythimna separata were 89.2, 98.6, 181.4 and 109.2 microg g(-1), respectively.
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