6-Methyluracil derivatives as peripheral site ligand-hydroxamic acid conjugates: Reactivation for paraoxon-inhibited acetylcholinesterase
作者:Vyacheslav E. Semenov、Irina V. Zueva、Sofya V. Lushchekina、Oksana A. Lenina、Lilya M. Gubaidullina、Lilya F. Saifina、Marina M. Shulaeva、Ramilya M. Kayumova、Alina F. Saifina、Aidar T. Gubaidullin、Svetlana A. Kondrashova、Shamil K. Latypov、Patrick Masson、Konstantin A. Petrov
DOI:10.1016/j.ejmech.2019.111787
日期:2020.1
4-triazole-3-hydroxamic acid units were synthesized and studied as reactivators of organophosphate-inhibited cholinesterase. Using paraoxon (POX) as a model organophosphate, it was shown that 6-methyluracil derivatives linked with hydroxamic acid are able to reactivate POX-inhibited human acetylcholinesterase (AChE) in vitro. The reactivating efficacy of one compound (5b) is lower than that of pyridinium-2-aldoxime
合成了6-甲基尿嘧啶衍生物与咪唑-2-醛肟和1,2,4-三唑-3-异羟肟酸单元的新的不带电荷的共轭物,并作为有机磷酸酯抑制的胆碱酯酶的活化剂进行了研究。使用对氧磷(POX)作为有机磷酸酯的模型,表明与异羟肟酸连接的6-甲基尿嘧啶衍生物能够在体外重新激活POX抑制的人乙酰胆碱酯酶(AChE)。一种化合物(5b)的再活化功效低于吡啶-2-醛肟(2-PAM)。同时,与2-PAM不同,体内研究表明,先导化合物5b能够:(1)重新激活脑中POX抑制的AChE;(2)减少神经元的死亡,(3)防止POX诱发的神经变性大鼠模型的记忆障碍。