Novel 2,4,5-Trisubstituted Pyridines as Key Intermediates for the Preparation of the TSPO Ligand 6-F-PBR28: Synthesis and Full<sup>1</sup>H and<sup>13</sup>C NMR Characterization
作者:Annelaure Damont、Frédéric Lemée、Guillaume Raggiri、Frédéric Dollé
DOI:10.1002/jhet.1723
日期:2014.3
As part of our ongoing research for molecular structures binding to the translocator protein (TSPO 18 kDa), we investigated the preparation of a number of new 2,4,5‐trisubstituted pyridines as novel building blocks. In particular, 5‐amino‐2‐halo‐4‐phenoxypyridines (11, 12, 13) were designed as key intermediates for the synthesis of the recently developed TSPO ligand 6‐F‐PBR28 and its fluorine‐18‐labeled
作为我们正在进行的与转运蛋白(TSPO 18 kDa)结合的分子结构研究的一部分,我们研究了许多新的2,4,5-三取代吡啶作为新型结构单元的制备。特别是,5-氨基-2-卤代-4- phenoxypyridines(11,12,13)被设计为关键中间体,用于最近开发的TSPO的合成配体6-F-PBR28及其用于正电子氟-18标记的版本放射断层扫描,6‐ [ 18 F] F‐PBR28。我们在此报告的化学制剂以及1 H和13个取代的吡啶的C NMR光谱数据2,3,4,5,6,7,图7b,8,9,10,11,12,13,14。后者证明了芳环在取代时电子密度的重新分配发生了戏剧性的变化。