A high yielding synthesis of stilbene oxides using ammonium ylides has been developed. It turned out that the amine leaving group plays a crucial role as trimethylamine gives higher yields than DABCO or quinuclidine. The amine group also influences the diastereoselectivity, and detailed DFT calculations to understand the key parameters of these reactions have been carried out.
Oxyaniliniums as acetylcholinesterase inhibitors for the reversal of neuromuscular block
作者:Simon J.A. Grove、Jasmit Kaur、Alan W. Muir、Eleanor Pow、Gary J. Tarver、Ming-Qiang Zhang
DOI:10.1016/s0960-894x(01)00703-x
日期:2002.1
A series of oxyanilinium-based AChE inhibitors have been synthesised and tested for the reversal of vecuronium-induced neuromuscular block. Several compounds, for example 2-hydroxy- and 2-methoxy-N,N-dimethyl-N-allylanilinium bromide (3 and 6) showed comparable reversal potencies to edrophonium and clean in vivo cardiovascular profiles. (C) 2002 Elsevier Science Ltd. All rights reserved.