Wei Shao-peng, Ji Zhi-qin, Zhang Ji-wen
Institute of Pesticide Science, Northwest A&F University, Yangling, Shaanxi 712100, PR China.
Molecules. 2009 Mar 30;14(4):1396-403. doi: 10.3390/molecules14041396.
A new sesquiterpene polyol ester with a beta-dihydroagarofuran skeleton, NW37 (1), and three known compounds NW13 (2), NW16 (3) and NW35 (4) were isolated by bioassay-guided fractionation from the highly polar MeOH extracts of the root bark of Celastrus angulatus. Their chemical structures were elucidated mainly by analyses of MS and NMR spectral data. The insecticidal activity of compound 1 against 4th instar Mythimna separata larvae with a KD(50) value of 252.3 microg g(-1) was demonstrated.
通过生物活性导向分离，从苦皮藤根皮的高极性甲醇提取物中分离得到了一种具有β-二氢沉香呋喃骨架的新型倍半萜多元醇酯NW37（1）以及三种已知化合物NW13（2）、NW16（3）和NW35（4）。它们的化学结构主要通过质谱和核磁共振光谱数据进行解析。化合物1对粘虫4龄幼虫具有杀虫活性，其KD(50)值为252.3 μg g(-1)。
