Synthesis, Bioactivities and Structure Activity Relationship of N-4-Methyl-1,2,3-thiadiazole-5-carbonyl-N '-phenyl Ureas
文献类型: 外文期刊
第一作者: Guo Dandan
作者: Guo Dandan;Wang Zhiwen;Fan Zhijin;Zhao Hui;Zhang Wei;Cheng Jiagao;Yang Jiaqiang;Wu Qingjun;Zhang Youjun;Fan Qian
作者机构:
关键词: 4-methyl-1;2;3-thiadiazole derivatives;benzoylurea pesticides;insecticidal activity;3D QSAR model
期刊名称:CHINESE JOURNAL OF CHEMISTRY ( 影响因子:6.0; 五年影响因子:3.19 )
ISSN: 1001-604X
年卷期: 2012 年 30 卷 10 期
页码:
收录情况: SCI
摘要: Twenty nine novel N-4-methyl-1,2,3-thiadiazole-5-carbonyl-N'-phenyl ureas were designed and synthesized, and their structures were confirmed by proton nuclear magnetic resonance (1H NMR), infra red spectroscopy (IR) and high-resolution mass spectroscopy (HRMS). Compounds V-9, V-11, V-12, V-15, V-19, V-21, V-22 and V-24 exhibit excellent activity against Culex pipiens pallens. Compounds V-12 and V-22 present good insecticidal activity against Plutella xylostella L. Their median lethal concentrations (LC50) are 164.15 and 89.69 mg center dot L-1, respectively. Compound V-11 also has potential wide spectrum of fungicide activity. Its median effective concentrations (EC50) detected from 3.82 mu g center dot mL-1 against Physalospora piricola to 31.60 mu g center dot mL-1 against Cercospora arachidicola. Compounds V-15 and V-24 show outstanding induction activities as same as positive controls TDL and ningnanmycin, furthermore V-24 has the highest induction activity of 41.85%+/- 4.43%. To elucidate the structure activity relationship in these compounds, a 3D-QSAR model has been built. The established model showed a reliable predicting ability with q2 values of 0.643 and r2 values of 0.982.
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