来自冬青卫矛的两种新型杀虫倍半萜酯。

Two new insecticidal sesquiterpene esters from Euonymus japonicus.

作者信息

Zhang Qidong, Ji Zhiqing, Wang Mingan, Wu Wenjun

机构信息

Department of Plant Protection, Northwestern Agricultural University, Yangling, Shaanxi 712100, People's Republic of China.

出版信息

Nat Prod Res. 2009;23(15):1402-7. doi: 10.1080/14786410902726282.

DOI:10.1080/14786410902726282

PMID:19809912

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.

摘要

从卫矛根皮的乙酸乙酯提取物中，通过生物活性导向分离法分离得到了两种具有β-二氢沉香呋喃倍半萜骨架的新型杀虫倍半萜酯，即卫矛宁A（1）和卫矛宁B（2），以及两种已知化合物3和4。它们的化学结构主要通过质谱和核磁共振光谱数据的分析得以阐明。卫矛宁A（1）、卫矛宁B（2）、3和4对粘虫的半数致死剂量（LD50）分别为89.2、98.6、181.4和109.2 μg g(-1)。