Insecticidal and Neuroblocking Potencies of Variants of the Imidazolidine Moiety of Imidacloprid-Related Neonicotinoids and the Relationship to Partition Coefficient and Charge Density on the Pharmacophore
作者:Shinzo Kagabu、Rika Ishihara、Yosuke Hieda、Keiichiro Nishimura、Yuji Naruse
DOI:10.1021/jf0623440
日期:2007.2.1
The pharmacophore of the neonicotinoid insecticide imidacloprid, nitroiminoimidazolidine, was modified to heterocycles such as thiazolidine, pyrrolidine, dihydroimidazole, dihydrothiazole, and pyridone conjugated to nitroimine (=NNO2) or nitromethylene (=CHNO2). Their 6-chloro-3-pyridylmethyl or 5-chloro-3-thiazolylmethyl derivatives were examined for insecticidal activity against the American cockroach
将新烟碱类杀虫剂吡虫啉吡咯烷硝基亚氨基咪唑烷的药效基团修饰为杂环,例如噻唑烷,吡咯烷,二氢咪唑,二氢噻唑和吡啶酮,它们偶联到硝基亚胺(= NNO2)或硝基亚甲基(= CHNO2)上。通过注射检查了它们的6-氯-3-吡啶基甲基或5-氯-3-噻唑基甲基衍生物对美国蟑螂的杀虫活性,并使用蟑螂神经节检测了它们的神经阻滞活性。具有新烟碱类药效团的大多数化合物在纳摩尔水平上表现出杀虫活性,在增效剂的存在下增强了杀虫活性,在微摩尔水平上表现出高的神经阻滞活性。化合物的定量分析表明,神经阻滞能力与硝基氧原子上的Mulliken电荷和分配系数log P值均成正比。杀虫力与神经阻滞效力的方程式表明,当其他因素相同时,两种效力彼此成比例相关。