Synthesis, Insecticidal Activity, and Molecular Docking Studies of Nitenpyram Analogues with a Flexible Ester Arm Anchored on Tetrahydropyrimidine Ring
作者:Chuanwen Sun、Xiao Xu、Yonghua Xu、Dingrong Yan、Ting Fang、Tianyan Liu
DOI:10.1021/jf1049563
日期:2011.5.11
a new series of nitenpyam analogues with flexible ester arm were synthesized. Preliminary bioassays indicated that all of our newly designed nitenpyam analogues exhibited good insecticidal activity at 100 mg/L, while analogues 4c and 4d afforded the best in vitro activity, and both of them had 100% mortality at 20 mg/L. The SAR studies suggested that their insecticidal potency was dual-controlled
为了进一步研究以前合成的新烟碱类化合物的结构-活性关系(SAR),合成了一系列新的具有柔性酯臂的乙炔胺类似物。初步的生物测定表明,我们所有新设计的乙炔胺类似物在100 mg / L时均表现出良好的杀虫活性,而类似物4c和4d提供了最佳的体外活性,并且在20 mg / L时,两者均具有100%的死亡率。SAR研究表明,其杀虫力是由酯臂的长度和酯基团的大小双重控制的。另外,分子对接模拟显示这些类似物的结构独特性可能导致独特的分子识别和结合模式,这解释了在体外观察到的SAR,并阐明了这些新颖的乙炔胺类似物的新颖的杀虫机理。