Design, synthesis and evaluation of new α-nucleophiles for the hydrolysis of organophosphorus nerve agents: application to the reactivation of phosphorylated acetylcholinesterase
mechanism of their action was studied in details by kinetic analysis, HPLC and LC–MS methods. The most promising structures were then considered as potent in vitro reactivators of phosphylated acetylcholinesterase (AChE), which was confirmed by the preliminary results of AChE reactivation initially inhibited by VX.
Phenolate‐Induced N−O Bond Formation versus Tiemann‐Type Rearrangement for the Synthesis of 3‐Aminobenzisoxazoles and 2‐Aminobenzoxazoles
作者:Benedikt Hufnagel、W. Felix Zhu、Hanna M. Franz、Ewgenij Proschak、Victor Hernandez‐Olmos
DOI:10.1002/open.202200252
日期:2022.12
intramolecular N−O bond formation and the competitive Tiemann-type rearrangement via oxadiazolones as cyclic nitrenoid precursors were developed. Selectivity for the two isomers was remarkably influenced by steric and electronic effects, but tetrabutylammonium chloride (TBACl) was discovered as an effective additive to promote the Tiemann-type rearrangement over N−O bond formation.