Synthesis, nematicidal evaluation, and SAR study of benzofuran derivatives containing 2-carbonyl thiophene
作者:Xiaofeng Cao、Die Qiu、Ruifeng Zhang、Zhong Li、Xiaoyong Xu
DOI:10.1016/j.cclet.2022.107800
日期:2023.5
design strategy. These compounds were modified further. The nematicidal activity against M. incognita of synthesized compounds was evaluated. The bioassay showed that compound 3 and some of its derivatives such as compounds 18, 19, 21, 22, 23, 24, and 26 exhibited excellent nematicidal activity. Among them, compound 23 exhibited significant bioactivity. The LC50/72 h value reached 3.20 mg/L in vitro
植物寄生线虫是作物保护的主要威胁。缺乏具有新作用方式和增加的抗性的杀线虫剂提高了对新型杀线虫剂的需求。为了寻找新的杀线虫先导物,从查耳酮的结构出发,通过闭环设计策略得到了一系列稠环化合物。这些化合物被进一步修饰。评估了合成化合物对南方根结线虫的杀线虫活性。生物测定表明,化合物3及其一些衍生物如化合物18、19、21、22、23、24和26表现出优异的杀线虫活性。其中,化合物23表现出显着的生物活性。LC 50/72 小时体外值达到3.20 mg/L ,在基质中40 mg/L时抑制率为100.00%。详细讨论了合成化合物的构效关系。还评估了化合物23对秀丽隐杆线虫的卵孵化、运动和摄食行为的影响。