Discovery of a Subnanomolar Inhibitor of Protoporphyrinogen IX Oxidase <i>via</i> Fragment-Based Virtual Screening
作者:Bai-Feng Zheng、Zhi-Zheng Wang、Jin Dong、Jin-Yi Ma、Yang Zuo、Qiong-You Wu、Guang-Fu Yang
DOI:10.1021/acs.jafc.3c00168
日期:2023.6.14
7-tetrahydro-2H-indazol-2-yl)-6-fluorobenzo[d]thiazol-2-yl)thio)acetate (8aj, Ki = 16 nM) was screened out as a hit compound via a fragment-based virtual screening method performed in the Auto Core Fragment in silico Screening web server. Subsequently, through a fused process of “hit-to-lead” optimization guided by molecular simulation, a total of 30 3-chloro-4,5,6,7-tetrahydro-2H-indazol-benzo[d]thiazole derivatives
原卟啉原 IX 氧化酶(PPO,EC 1.3.3.4)是存在于多种生物体中的一种关键功能酶,由于其在叶绿素和血红素生物合成途径中的关键作用,被认为是除草剂开发中最重要的作用靶标之一。经过我们对新型PPO抑制性除草剂的不懈研究,发现了一种新化合物甲基2-((5-(3-氯-4,5,6,7-四氢-2H-吲唑-2-基)-通过在 Auto Core Fragment in silico Screening Web 服务器中执行的基于片段的虚拟筛选方法,筛选出 6-氟苯并[ d ]噻唑-2-基)硫代)乙酸酯( 8aj , K i = 16 nM)作为命中化合物。随后,通过分子模拟指导下的“hit-to-lead”优化融合过程,共合成了30个3-氯-4,5,6,7-四氢-2H-吲唑-苯并[ d ]噻唑衍生物。合成并表征。酶抑制生物测定结果表明,超过一半的新合成化合物对烟草PPO ( Nt PPO) 的活性高于商业