食品安全问题和农药残留问题已经引起世界范围内人们的关注。双酰肼类化合物作用于蜕皮激素受体（EcR），具有良好的选择性且对环境和非靶标生物安全，近年来得到推广应用并成为研究热点。在前期研究中我们通过引入天然的嘧啶结构片段，设计合成了系列N-未取代的嘧啶二酮双酰肼类化合物，进行了杀虫活性及生长发育抑制活性研究，研究表明所合成的化合物具有生长调节活性，影响昆虫蜕皮。为得到低毒、高效的新型EcR抑制剂，我们利用生物电子等排体原理设计合成了系列N-取代的嘧啶二酮双酰肼类衍生物，得到了活性提高的化合物，并研究了其靶标活性及作用机制。本研究课题以此为基础，通过计算机辅助设计的分子对接方法分析构效关系，进一步设计合成系列新的嘧啶酮二酮双酰肼衍生物，以期筛选得到更安全、高效的先导化合物，并确立其详细的构效关系及影响蜕皮的作用机制。

Food safety and pesticides residue has attracted the attention of people worldwide. Diacylhydrazines targeting on the molting hormone receptor (EcR), with its good selectivity, safety to environment and non-target organisms, are widely used, and become a research hotspot in recent years. In our previous work, a series of pyrimidine diketone-diacylhydrazines were designed and synthesized with thymine as the hit compound, of which the insecticidal activities were evaluated and the preliminary structure-activity relationship (SAR) and the insecticidal mechanism were confirmed. A series of novel pyrimidone-diacylhydrazines were designed and synthesized based on bioisostere principle in order to reduce the toxicity to discover the new lead compound with the higher insecticidal activities and the weaker toxicity. The result discovered that these compounds can regulate pest growth, affect molting. Basing on these results, in order to screening out higher safety and more efficient lead compounds, in this study, we analysis the SAR with molecular docking, and then design and synthesis series new pyrimidone-diacylhydrazines derivatives.