Novel tacrine-pyridinium hybrid reactivators of organophosphorus-inhibited acetylcholinesterase: Synthesis, molecular docking, and in vitro reactivation study
作者:Jinwoo Kim、Yashwardhan R. Malpani、Jooyun Lee、Jin Soo Shin、Soo Bong Han、Young-Sik Jung
DOI:10.1016/j.bmcl.2018.10.006
日期:2018.12
nerve agents consists of co-administration of anticholinergic agents and oxime reactivators, which reactivate inhibited AChE. Pralidoxime, a commonly used oxime reactivator, is effective against some nerve agents but not against others; thus, new oxime reactivators are needed. Novel tacrine-pyridinium hybrid reactivators in which 4-pyridinealdoxime derivatives are connected to tacrine moieties by linear
对抗神经毒剂的一线药物治疗包括抗胆碱能药和肟再激活剂的共同给药,后者可重新激活受抑制的AChE。普利昔肟是一种常用的肟再活化剂,对某些神经毒药有效,对其他神经毒药则无效。因此,需要新的肟再活化剂。制备了新颖的他克林-吡啶杂化活化剂,其中4-吡啶代肟肟衍生物通过不同长度的线性碳链(C2-C7)连接到他克林部分(方案1、5a-f)。测试了它们与鳗鱼AChE的结合亲和力,因为肟可以抑制游离的AChE,并且在1μM的肟浓度下(5a,5b和5c)观察到最高的AChE活性(95%,92%和90%), 分别)。基于它们对游离AChE的抑制亲和力,使用1μM浓度的肟衍生物(5)检查对氧磷抑制的AChE的重新活化。随着碳连接子链的延长(n = 2–5),再活化能力增强;与2-PAM(16%)和HI-6(4%)相比,5c和5d表现出显着的再活化能力(41%) -抑制电鳗AChE的浓度为1μM。分子对接模拟表明,在5c处73