Synthesis and insect antifeedant activity of stilbene derivatives against Brontispa longissima Larvae
作者:Ying-Qian Liu、Xiao-Jing Li、Chun-Yan Zhao、Yan Lu、Wen-Qun Li、Zhen-Ling Liu、Gang Feng、Liu Yang
DOI:10.1007/s00044-012-0212-x
日期:2013.5
25 stilbene analogs were synthesized and evaluated for insect antifeedant activity against third-instar larvae of B. longissima for the first time. Among all the tested compounds, especially compounds 3a, 3c, and 6 showed pronounced antifeedant activities with AFC50 values of 0.218, 0.327, and 0.226 mg/mL, respectively. The different antifeedant activity ranges of these compounds indicated that variation
继续我们的寻找以天然产物为基础的化合物来控制长双歧杆菌幼虫的研究,首次合成了25种二苯乙烯类似物并评估了其对长双歧杆菌第三龄幼虫的昆虫拒食活性。在所有测试的化合物中,尤其是化合物3a,3c和6在AFC 50中表现出明显的拒食活性值分别为0.218、0.327和0.226 mg / mL。这些化合物的拒食活性范围不同,表明二苯乙烯骨架中化学结构的变化显着影响了此类化合物的活性谱,并且从中揭示了一些重要的SAR信息。此外,要了解25种合成的二苯乙烯类似物对拒食活性的结构要求,可采用比较分子场分析(CoMFA)模型,该模型得出的留一法(LOO)交叉验证相关系数(q 2)为0.533和非交叉验证的相关系数(r 2)的数值为0.929。总之,这些初步结果可能在指导潜在的新抗饲料开发中对斯蒂芬苯酯的进一步修饰中有用。