Pyrazole–Isoindoline-1,3-dione Hybrid: A Promising Scaffold for 4-Hydroxyphenylpyruvate Dioxygenase Inhibitors
作者:Bo He、Jin Dong、Hong-Yan Lin、Meng-Yao Wang、Xian-Kai Li、Bai-Feng Zheng、Qiong Chen、Ge-Fei Hao、Wen-Chao Yang、Guang-Fu Yang
DOI:10.1021/acs.jafc.9b04917
日期:2019.10.2
The discovery of 4-hydroxyphenylpyruvate dioxygenase (HPPD, EC 1.13.11.27) inhibitors has been an active area of research due to their great potential as herbicides for weed control. Starting from the binding mode of known inhibitors of HPPD, a series of HPPD inhibitors with new molecular scaffolds were designed and synthesized by hybridizing 2-benzoylethen-1-ol and isoindoline-1,3-dione fragments. The
4-羟基苯基丙酮酸双加氧酶(HPPD,EC 1.13.11.27)抑制剂的发现由于其作为除草剂除草剂的巨大潜力而成为一个活跃的研究领域。从已知的HPPD抑制剂的结合模式出发,通过将2-苯并lethen-1-ol和isoindoline-1,3-dione片段杂交,设计并合成了一系列具有新分子支架的HPPD抑制剂。的体外试验的结果表明,新合成的化合物显示出良好的HPPD抑制活性IC 50个针对重组值拟南芥HPPD(在HPPD)范围为0.0039μM到超过1微米。最有希望的是化合物4ae,2-苄基-5-(5-羟基-1,3-二甲基-1 H吡唑-4-羰基)异二氢吲哚-1,3-二酮,显示出最高的在与HPPD抑制活性ķ我3.92纳米的值,使得它大约10倍,比磺酰草吡唑更有效(ķ我= 44 nM)的和稍微更比甲基磺草酮有效(K i = 4.56 nM)。此外,At HPPD– 4ae的共晶体结构该复合物已成功解析为1