Synthesis of a tritium-labeled photo-affinity probe based on an atypical leukotriene biosynthesis inhibitor
作者:Nag S. Kumar、Matthew P. Braun、Ashok G. Chaudhary、Robert N. Young
DOI:10.1002/jlcr.1804
日期:2011.1
A radiolabeled photo-affinity probe containing a diazirine group was designed and synthesized based on an atypical leukotriene (LT) biosynthesis inhibitor to determine whether this type of inhibitor (such as 5) interacts with a novel protein, critical for LT biosynthesis. One of the key transformations was to introduce a tritium label in the thiazole ring. This was eventually achieved by treating the iodinated compound with tritium, Pt/C (sulfided) and triethylamine in anhydrous aprotic solvent, to give the tritiated compound with a specific activity of 303 GBq/mmol. The affinity probe will be used to identify the proteins and protein complexes with which this type of molecules interacts with in inflammatory cells. Copyright © 2010 John Wiley & Sons, Ltd.
我们以一种非典型白三烯(LT)生物合成抑制剂为基础,设计并合成了一种含有重氮基团的放射性标记光亲和探针,以确定这类抑制剂(如 5)是否与一种对 LT 生物合成至关重要的新型蛋白质相互作用。关键的转化之一是在噻唑环中引入氚标记。通过在无水无相溶剂中用氚、Pt/C(硫化)和三乙胺处理碘化化合物,最终得到了氚标记化合物,其特定活性为 303 GBq/mmol。该亲合探针将用于鉴定炎症细胞中与这类分子相互作用的蛋白质和蛋白质复合物。Copyright © 2010 John Wiley & Sons, Ltd. All Rights Reserved.