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依据摩擦学定量构效关系理论(QSTR),采用比较分子力场分析(CoMFA)和比较分子相似性指数分析(CoMSIA)这两种方法研究了含氮杂环类润滑油添加剂的抗磨损性能的摩擦学三维定量构效关系(3D-QSTR),并建立了相应的3D-QSTR模型.结果表明:仅利用静电场构建CoMFA或CoMSIA模型时,模型预测能力最好,r~2,q~2均大于0.5.根据CoMFA或CoMSIA模型等高线图分析得出:分子静电场对含氮杂环类润滑油添加剂的抗磨损性能影响最大,在特定区域的引入带负电荷或带正电荷的基团将有助于抗磨性能的提高. 相似文献
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To reveal the potential fungicidal mechanism of 5-((4-((4-chlorophenoxy)methyl)-5-iodo-1 H-1,2,3-triazole-1-yl)methyl)-2-methylpyrimidin-4-amine(PA-1) against Botrytis cinerea(B. cinerea), the three-dimensional structure of B. cinerea pyruvate dehydrogenase complex E1 component(PDHc-E1) is homology modeled, as the PA-1 shows potent E. coli PDHc-E1 and B. cinerea inhibition. Subsequent molecular docking indicates the PA-1 can tightly bind to B. cinerea PDHc-E1. Molecular dynamic simulation and MM... 相似文献
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