Study of <i>para</i>-Quinone Methide Precursors toward the Realkylation of Aged Acetylcholinesterase
作者:Ryan J. Yoder、Qinggeng Zhuang、Jeremy M. Beck、Andrew Franjesevic、Travis G. Blanton、Sydney Sillart、Tyler Secor、Leah Guerra、Jason D. Brown、Carolyn Reid、Craig A. McElroy、Özlem Doğan Ekici、Christopher S. Callam、Christopher M. Hadad
DOI:10.1021/acsmedchemlett.7b00037
日期:2017.6.8
capable of reactivating inhibited AChE. There are no known therapeutic agents to reverse the aging process or treat aged AChE. Quinone methides (QMs) have been shown to alkylate phosphates under physiological conditions. In this study, a small library of novel quinone methide precursors (QMPs) has been synthesized and examined as potential alkylating agents against model nucleophiles, including a model phosphonate
乙酰胆碱酯酶(AChE)是一种必需的酶,可以被有机磷(OP)化合物(包括神经毒剂)靶向。暴露于OPs后,AChE磷酸化(被抑制)并经历后续的老化过程,其中OP-AChE加合物被脱烷基。老化的AChE无法水解乙酰胆碱,导致神经递质在中枢神经系统(CNS)和其他部位的积累。当前的治疗剂仅能够重新激活抑制的AChE。没有已知的治疗剂可以逆转衰老过程或治疗衰老的AChE。醌甲基化物(QMs)已显示在生理条件下可使磷酸烷基化。在这项研究中,我们合成了一个小型的新型醌甲基前体(QMP)库,并将其作为针对模型亲核试剂的潜在烷基化剂进行了研究,包括模型膦酸酯。已经进行了计算研究,以评估QMP对衰老的AChE活性位点的亲和力,并且已经进行了电鳗AChE的初步测试。