In Silico Structure-Guided Optimization and Molecular Simulation Studies of 3-Phenoxy-4-(3-trifluoromethylphenyl)pyridazines as Potent Phytoene Desaturase Inhibitors
摘要:
一系列新型3-苯氧基-4-(3-三氟甲基苯基)吡啶并嗪2-5,通过基于我们先前的引物化合物1的结构,采用in silico结构引导的优化方法设计而成。结果表明,其中一些新化合物在750 g ai/ha的前后出苗应用下表现出良好的除草活性,尤其是化合物2a,在300-750 g ai/ha的前出苗除草活性与300-750 g ai/ha的地菜草灵相当,而后出苗除草活性高于地菜草灵。此外,2a在300 g ai/ha的前后出苗应用下对小麦安全,显示了该化合物在小麦田除草的潜力。我们的分子模拟研究揭示了2a与Synechococcus PDS相互作用的重要因素。这项工作为小麦田的除草提供了一个引物化合物。
Synthesis and Herbicidal Activities of Novel 3-N-Substituted Amino-6-methyl-4-(3-trifluoromethylphenyl)pyridazine Derivatives
作者:Han Xu、Xu-Hong Hu、Xiao-Mao Zou、Bin Liu、You-Quan Zhu、Yong Wang、Fang-Zhong Hu、Hua-Zheng Yang
DOI:10.1021/jf800900h
日期:2008.8.1
series of compounds with bleaching and herbicidal activities. Starting from ethyl 2-(3-trifluoromethylphenyl)acetate, an important intermediate 7 was synthesized in five steps with a moderate total yield of 51.5% in a safe and practical way. Twenty-six novel 3-N-substituted amino-6-methyl-4-(3-trifluoromethylphenyl)pyridazine derivatives were synthesized and evaluated through a Spirodela polyrrhiza test