were found to have excellent biological activity against B. xylophilus. Based on our tremendous demand for chemicals against B. xylophilus, a novel scaffold based on the azo and azoxy groups was designed, and a series of compounds were synthesized. In the bioassay, Ia, IIa, IIc, IId, and IVa exhibited higher activity against B. xylophilus in vitro than avermectin (LC50 = 2.43 μg·mL–1) with LC50 values
松材线虫( B. xylophilus ) 和根结线虫是寄生线虫,分别对松木和农作物造成严重的生态和经济损害。研究发现解他星(解他星 A 和 B)对松材线虫具有优异的
生物活性。基于我们对松材线虫
化学品的巨大需求,设计了一种基于偶氮和氧化偶氮基团的新型支架,并合成了一系列化合物。
生物测定中, Ia 、 IIa 、 IIc 、 IId和IVa的体外抗松材线虫活性高于
阿维菌素(LC 50 = 2.43 μg·mL –1 ),LC 50值为1.37、1.12、0.889、1.56和1.56。分别为1.10 μg·mL –1 。同时, Ib 、 Ic 、 IIc和IVa在80和40 μg·mL –1浓度下对体内根结线虫表现出良好的抑制作用,抑制率分别为89.0%和81.6%、95.6%和75.7%、96.3%和41.2 %、86.8% 和 78.7%。在体外杀菌活性方面, IIb和IVa对葡萄孢菌表现出优异的效果,在10