Function-Oriented Synthesis of a Didesmethyl Triazacryptand Analogue for Fluorescent Potassium Ion Sensing
作者:Richard D. Carpenter、Alan S. Verkman
DOI:10.1002/ejoc.201001450
日期:2011.3
Triazacryptand (TAC)-based fluorescent K+ sensors have broad biomedical utility, yet their advancement has been hindered because of their challenging synthesis. Herein, an efficient synthesis is reported that delivers a didesmethyl tri-azacryptand (ddTAC) K+ sensor in twofold fewer steps and ninefold higher overall yield than the original TAC synthesis. Our synthesis utilizes a C-O dianionic oxidative
基于 Triazacryptand (TAC) 的荧光 K+ 传感器具有广泛的生物医学用途,但由于其合成具有挑战性,因此阻碍了它们的发展。在此,报道了一种有效的合成方法,与原始 TAC 合成相比,该合成方法以少两倍的步骤和高九倍的总产率提供二去甲基三氮杂隐键 (ddTAC) K+ 传感器。我们的合成利用了 CO 双阴离子氧化大环化,并报告了氨基芳基化的新实例和生成黄嘌呤生色团的微波途径。基于 ddTAC 的传感器的 K+ 灵敏度和选择性与基于 TAC 的传感器相当。