Synthesis and in vitro reactivation study of isonicotinamide derivatives of 2-(hydroxyimino)-N-(pyridin-3-yl)acetamide as reactivators of Sarin and VX inhibited human acetylcholinesterase (hAChE)
作者:Hitendra N. Karade、G. Raviraju、B.N. Acharya、Aditya Kapil Valiveti、Uma Bhalerao、Jyotiranjan Acharya
DOI:10.1016/j.bmc.2016.07.005
日期:2016.9
no acetamide), as reactivators of sarin and VX inhibited hAChE. Few of the molecules showed superior in vivo protection efficacy (mice model) (Kumar et al., 2014; Swami et al., 2016) in comparison to 2-PAM against DFP and sarin poisoning. Encouraged by these results, herein we report the synthesis and in vitro evaluation of isonicotinamide derivatives of pyridine-3-yl-(2-hydroxyimino acetamide) (4a-4d)
以前(Karade等人,2014),我们已经报道了吡啶-3-基-(2-羟基亚氨基乙酰胺)的双吡啶衍生物的合成和体外评估,因为它们是沙林蛋白和VX的活化剂抑制了hAChE。与2-PAM对抗DFP和沙林中毒相比,很少有分子表现出优异的体内保护功效(小鼠模型)(Kumar等,2014; Swami等,2016)。受这些结果的鼓舞,本文报道了吡啶-3-基-(2-羟基亚氨基乙酰胺)(4a-4d)对沙林蛋白和VX抑制红细胞重影hAChE的异烟酰胺衍生物的合成和体外评价。研究了这些化合物的再活化动力学,并将确定的动力学参数与市售再活化剂进行了比较。2-PAM和obidoxime。与2-PAM和Obidoxime相比,肟4a和4b对沙林抑制hAChE的活化作用增强,而肟4c对VX抑制hAChE的活化作用增强。确定了这些肟的酸解离常数和IC50值,并将其与观察到的再活化潜能相关。