Anticholinesterase Activity of Compounds Related to Geneserine Tautomers. <i>N</i>-Oxides and 1,2-Oxazines
作者:Qian-sheng Yu、Xiaoxiang Zhu、Harold W. Holloway、Noel F. Whittaker、Arnold Brossi、Nigel H. Greig
DOI:10.1021/jm010491d
日期:2002.8.1
between N-oxide and 1,2-oxazine structures in a pH- and time-dependent manner. Assessment by (1)H NMR indicated that the N-oxide structure is adopted at neutral pH and that the compound exists in an equilibrium between several epimers. Evaluation of their biological action to inhibit human acetylcholinesterase (AChE) and butyrylcholinesterase (BChE), ex vivo, demonstrated that the N-oxide (7, 9, 11