One to chelate them all: investigation of a versatile, bifunctional chelator for 64Cu, 99mTc, Re and Co
作者:Eszter Boros、Yi-Heng Scott Lin、Cara L. Ferreira、Brian O. Patrick、Urs O. Häfeli、Michael J. Adam、Chris Orvig
DOI:10.1039/c0dt01458c
日期:——
We describe the synthesis of the dip (di-picolyl-carboxylate) bifunctional chelator system, capable of fast coordination of Cu2+, 64Cu2+ and Co2+, as well as the [M(CO)3]+-core (M = 99mTc, Re); it displays a variety of binding modes—tridentate when protected, tetradentate when deprotected. Syntheses of both the benzyl-nitro derivative and the benzyl-amino derivatives are described. The latter was coupled to biotin to show the viability of the system for functionalization with biomolecules. Besides coordination chemistry with stable isotopes, we also present labelling data with 64Cu and 99mTc, as well as in vitro stability studies.
我们介绍了 dip(二巯基羧酸酯)双功能螯合剂系统的合成,该系统能够快速配位 Cu2+、64Cu2+ 和 Co2+,以及 [M(CO)3]+ 核(M = 99mTc,Re);它显示出多种结合模式--受保护时为三叉型,去保护时为四叉型。本文介绍了苄基硝基衍生物和苄基氨基衍生物的合成过程。后者与生物素结合,显示了该系统与生物大分子功能化的可行性。除了稳定同位素的配位化学,我们还介绍了 64Cu 和 99mTc 的标记数据以及体外稳定性研究。