Synthesis of bifunctional chelating agents based on mono and diphosphonic derivatives of diethylenetriaminepentaacetic acid
作者:Giovanni B. Giovenzana、Claudia Guanci、Silvia Demattio、Luciano Lattuada、Veronica Vincenzi
DOI:10.1016/j.tet.2014.05.030
日期:2014.8
Bifunctional chelating agents (BFCAs) are small molecules containing a chelating unit, able to strongly coordinate a metal ion, and a reactive functional group, devised to form a stable covalent bond with another molecule. BFCAs are widely employed since their conjugation to a suitable biomolecule (e.g., a peptide or an antibody) allows the synthesis of diagnostic or therapeutic agents that specifically
双功能螯合剂(BFCA)是包含螯合单元的小分子,该螯合单元能够牢固地配位金属离子,并具有反应性官能团,旨在与另一个分子形成稳定的共价键。BFCA被广泛使用,因为它们与合适的生物分子(例如,肽或抗体)结合可以合成诊断或治疗剂,这些诊断剂或治疗剂特异性地靶向金属或放射性金属引起的病变组织。由于这个原因,BFCA在癌症的诊断成像,分子成像和放射治疗中得到了应用。描述了基于二亚乙基三胺五乙酸(DTPA)结构的新BFCA的合成,其中一个或两个羧基被膦酸单元取代。除了在配位化学中是羧酸的经典等排体之外,膦酸酯基