Synthesis, Fungicidal Activity, and 3D-QSAR of Pyridazinone-Substituted 1,3,4-Oxadiazoles and 1,3,4-Thiadiazoles
作者:Xia-Juan Zou、Lu-Hua Lai、Gui-Yu Jin、Zu-Xing Zhang
DOI:10.1021/jf0201677
日期:2002.6.1
compounds containing both pyridazinone-substituted 1,3,4-thiadiazoles and pyridazinone-substituted 1,3,4-oxadiazoles. The 3D-QSAR modes gave good correlation between the variations on percent inhibition and the steric-electrostatic properties. The results are consistent with a common mode of action for the pyridazinone-substituted 1,3,4-thiadiazoles and the pyridazinone-substituted 1,3,4-oxadiazoles, which
基于生物立体异构,合成了一系列具有杀菌活性的5- [1-芳基-1,4-二氢-6-甲基哒嗪-4-一-3-基] -2-芳基氨基-1,3,4-恶二唑。并在体内针对小麦叶锈病(Puccinia recondita)进行了测试。这些化合物被证明具有杀真菌活性,其活性受取代基的性质影响。通过使用比较分子场分析(CoMFA)的三维定量构效关系(3D-QSAR)方法,我们研究了含有哒嗪酮取代的1,3,4-噻二唑和哒嗪酮取代的1,3,4-恶二唑 3D-QSAR模式在抑制百分比的变化与空间静电性质之间提供了良好的相关性。该结果与哒嗪酮取代的1,3,4-噻二唑和哒嗪酮取代的1,3,4-恶二唑的常见作用方式一致,这进一步证实了1,3,4-恶二唑环是1,3,4-噻二唑环的生物立体异构体。这些为在合成前设计高活性化合物提供了重要的结构见解。