Synthesis and Stability Evaluation of New HYNIC Derivatives as Ligands for Technetium-99m
作者:Yoann Joyard、Laurent Bischoff、Vincent Levacher、Cyril Papamicael、Pierre Vera、Pierre Bohn
DOI:10.2174/15701786113106660087
日期:2014.2
An efficient synthetic route to prepare two new HYNIC derivatives with a 2-nitroimidazole moiety designed
for tumor hypoxia imaging is described. During the course of the synthesis, the optimization of N-alkylation reaction of 2-
nitroimidazole with propargyl bromide is reported to favor the formation of the terminal alkyne versus allene. Thereafter,
the two ligands were used with tricine/EDDA to complex 99mTc. However, decomposition of these ligands was observed
and we suggest a reasonable explanation based on LC-MS analysis.
描述了一种高效的合成路线,用于制备两种新型HYNIC衍生物,它们含有2-硝基咪唑结构,设计用于肿瘤乏氧显像。在合成过程中,报道了对2-硝基咪唑与丙炔基溴的N-烷基化反应的优化,这有利于形成末端炔烃而非丙二烯。随后,这两种配体与tricine/EDDA一起用于络合99mTc。然而,观察到了这些配体的分解现象,我们基于LC-MS分析给出了一个合理的解释。