Synthesis, Nematicidal Evaluation, and the Structure–Activity Relationship Study of Aurone Derivatives
作者:Xiaofeng Cao、Mingxia Wang、Zhong Li、Xiaoyong Xu
DOI:10.1021/acs.jafc.3c00627
日期:2023.6.14
The nematicidal activity of target compounds against Meloidogyne incognita (root-knot nematode, M. incognita) was evaluated, and the structure–activity relationship of synthesized compounds was analyzed. The results showed that compound 6 and some of its derivatives exhibited impressive nematicidal activity. Among these compounds, compound 32 bearing 6-F showed the best in vitro and in vivo nematicidal
植物寄生线虫 (PPN) 是现代农业的主要威胁之一。PPN 的管理仍然需要化学杀线虫剂。基于我们之前的工作,使用混合 3D 相似性计算方法(SHAFTS,SHApe-Feature Similarity)获得了金酮类似物的结构。合成了 37 种化合物。评价了目标化合物对南方根结线虫(根结线虫,M. incognita )的杀线虫活性,并分析了合成化合物的构效关系。结果表明,化合物6及其一些衍生物表现出令人印象深刻的杀线虫活性。在这些化合物中,含 6-F 的化合物32表现最好体外和体内杀线虫活性。其暴露72 h后的50%致死浓度(LC 50/72 h)值为1.75 mg/L,在40 mg/L的沙土中抑菌率达到97.93%。同时,化合物32对卵孵化也表现出优异的抑制作用,对秀丽隐杆线虫(C. elegans )的运动能力有中度抑制作用。