[11C]Paraquat was synthesized by the reaction of [11C]methyl triflate with the mono-triflate salt of 1-methyl-[4,4′]bipyridinyl. The product was selectively separated from the precursor by a microcolumn of Chelex 100 ion exchange resin. The method was applied to the synthesis of a variety of [N-methyl-11C]bisquaternary ammonium compounds. This is the first reported use of a chelating cation exchange resin for the selective purification of organic dications. Copyright © 2002 John Wiley & Sons, Ltd.
[11C]
百草枯是通过[11C]甲基三酸酯与 1-甲基-[4,4′]联
吡啶的单三酸酯盐反应合成的。产物与前体通过 Chelex 100 离子交换
树脂微柱进行选择性分离。该方法被用于合成多种[
N-甲基-11C]双季
铵化合物。这是首次报道使用螯合阳离子交换
树脂选择性纯化有机阳离子。Copyright © 2002 John Wiley & Sons, Ltd. All Rights Reserved.