Abstract
To study the pesticide effect, action mode, structure-activity relationships (SARs) of anthranilic diamide insecticide and screen highly active pesticides, novel anthranilic diamide derivatives were synthesized. Bioassays indicated that all of the title compounds displayed 100% mortality against diamondback moth and oriental armyworm at 100mg/L, among which 12v and 12w showed 100% insecticidal acitvity at 5mg/L. Surprisingly compound 12w exhibited better insecticidal acitvity than commercialized chlorantraniliprole against Pyrausta nubilalis (0.1mg/L) and Cnaphalocrocis Medinalis (2mg/L). 3D-QSAR and SARs statistical analysis revealed that title compounds with R2 fixed as methoxy had the highest probability possessing high activity. The calcium fluorescence measurements on neurons revealed that E series compounds containing pyrazinyl may have a molecular target different from caffeine on ryanodine receptors rather than the voltage-gated calcium channel present on cytomembran.
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