Discovery of a Potent Thieno[2,3-<i>d</i>]pyrimidine-2,4-dione-Based Protoporphyrinogen IX Oxidase Inhibitor through an <i>In Silico</i> Structure-Guided Optimization Approach
作者:Da-Wei Wang、Hang Zhang、Shu-Yi Yu、Rui-Bo Zhang、Lu Liang、Xia Wang、Huang-Ze Yang、Zhen Xi
DOI:10.1021/acs.jafc.1c05665
日期:2021.12.1
compounds 2–6. Systematic bioassays led to the discovery of a highly potent compound 6g, 1-methyl-3-(2,2,7-trifluoro-3-oxo-4-(prop-2-yn-1-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-yl)thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione, which exhibited an excellent and wide spectrum of weed control at the rates of 30–75 g ai/ha by the postemergence application and is relatively safe on maize at 75 g ai/ha. Additionally
除草剂研究的一个关键目标是开发具有改进生物活性的新化合物。原卟啉原 IX 氧化酶 (PPO) 是发现除草剂的重要目标。在这里,我们报告了使用我们之前的先导化合物1的计算机结构引导优化方法,并设计和合成了一系列新的化合物2-6。系统的生物测定发现了一种高效的化合物6g , 1-methyl-3-(2,2,7-trifluoro-3-oxo-4-(prop-2-yn-1-yl)-3,4- dihydro-2 H -benzo[ b ][1,4]oxazin-6-yl)thieno[2,3- d ]pyrimidine-2,4(1 H ,3 H)-二酮,通过出苗后施用以 30-75 g ai/ha 的比率表现出优异且广谱的杂草控制,并且在 75 g ai/ha 的玉米上相对安全。此外,发现6g对烟草PPO (NtPPO)的K i值为2.5 nM,显示出相对于化合物1 ( K i = 7.4 nM)、trifludimoxazin