Fast and efficient tritium labelling of the nonsteroidal anti-inflammatory drugs naproxen, tolmetin, and zomepirac
作者:Steen K. Johansen、Lone Sørensen、Lars Martiny
DOI:10.1002/jlcr.950
日期:2005.7
Fast and efficient tritium labelling of the nonsteroidal anti-inflammatory drugs naproxen, tolmetin and zomepirac is reported. Naproxen along with its (R)-enantiomer were labelled by catalytic tritium–halogen exchange of the corresponding 5-bromo derivatives providing [3H]naproxen with a specific activity of 25.4 Ci/mmol. Tolmetin and zomepirac were labelled by the hydrogen isotope exchange reaction using Crabtree's catalyst. This provided [3H]tolmetin and [3H]zomepirac with specific activities of 80.8 and 64.3 Ci/mmol, respectively. All compounds were obtained in high radiochemical purity (>98%). Copyright © 2005 John Wiley & Sons, Ltd.
报告了对非甾体抗炎药萘普生、托美汀和佐美吡拉进行快速高效氚标记的情况。萘普生及其(R)-对映体是通过相应的 5-溴衍生物的催化氚卤交换进行标记的,其[3H]萘普生的比活度为 25.4 Ci/mmol。使用 Crabtree 催化剂通过氢同位素交换反应对托美汀和佐美匹拉克进行了标记。这样得到的[3H]托美汀和[3H]佐美匹拉克的比活度分别为 80.8 和 64.3 Ci/mmol。所有化合物的放射化学纯度都很高(>98%)。Copyright © 2005 John Wiley & Sons, Ltd. All Rights Reserved.