Structure-Guided Discovery of Silicon-Containing Subnanomolar Inhibitor of Hydroxyphenylpyruvate Dioxygenase as a Potential Herbicide
作者:Ren-Yu Qu、Jia-Xu Nan、Yao-Chao Yan、Qiong Chen、Ferdinand Ndikuryayo、Xue-Fang Wei、Wen-Chao Yang、Hong-Yan Lin、Guang-Fu Yang
DOI:10.1021/acs.jafc.0c03844
日期:2021.1.13
4-Hydroxyphenylpyruvate dioxygenase (HPPD, EC 1.13.11.27) has been recognized as one of the most promising targets in the field of herbicide innovation considering the severity of weed resistance currently. In a persistent effort to develop effective HPPD-inhibiting herbicides, a structure-guided strategy was carried out to perform the structural optimization for triketone-quinazoline-2,4-diones, a
考虑到目前对杂草的抗性的严重性,4-羟基苯基丙酮酸双加氧酶(HPPD,EC 1.13.11.27)被公认为是除草剂创新领域最有希望的目标之一。为了开发有效的抑制HPPD的除草剂,我们进行了结构导向的策略,以对三酮喹唑啉-2,4-二酮(我们在实验室中首次发现的新型HPPD抑制剂支架)进行结构优化。在此,从与6-(2-羟基-6-氧代环己基-1-烯-1-羰基)-1,5-二甲基-3-(邻甲苯基)喹唑啉络合的拟南芥(At)HPPD的晶体结构开始-2,4(1 H,3 H)-二酮(MBQ),通过优化R 1位置核心结构侧链与At HPPD活性位点入口处的疏水口袋之间的疏水相互作用,设计和制备了quinazoline-2,4-dione衍生物的三个亚系列。6-(2-羟基-6-氧代环己-1-烯-1-羰基)-1,5-二甲基-3-(3-(三甲基甲硅烷基)丙-2-炔-1-基)喹唑啉-2,4(对At HPPD具有最佳抑制活性的1