Syntheses of novel<i>N</i>-([<sup>18</sup>F]fluoroalkyl)-<i>N</i>-nitroso-4-methyl-benzenesulfonamides and decomposition studies of corresponding<sup>19</sup>F- and bromo-analogues: potential new compounds for the<sup>18</sup>F-labelling of radiopharmaceuticals
作者:Ralf Schirrmacher、Bernd Mathiasch、Esther Schirrmacher、Dragana Radnic、Frank Rösch
DOI:10.1002/jlcr.729
日期:2003.9
and basicity of the labelling medium. Furthermore, initial difficulties in labelling these compounds led to the development of a modified labelling procedure applying nearly solvent-free conditions. Extensive decomposition experiments of the new fluoro- as well as the bromo-compounds were conducted under various conditions in order to get experimental data about their stability and reactivity. As a
N-([ 18 F] 氟烷基)-N-亚硝基-4-甲基-苯磺酰胺 [n-烷基 = (-CH 2 ) [ 18,19 F] F, n=2-4)] 以放射化学产率范围合成从 75-90% 为 18 种 F 标记化合物的合成提供新的二级标记前体。使用相应的非放射性 19 F-化合物以及含溴的类似化合物进行初步分解研究,以评估它们在温度和标记介质碱度方面的稳定性。此外,标记这些化合物的最初困难导致应用几乎无溶剂条件的改进标记程序的发展。在各种条件下对新的氟化合物和溴化合物进行了广泛的分解实验,以获得关于它们的稳定性和反应性的实验数据。因此,可以观察到溴和氟化合物稳定性的不同趋势。