AbstractAn increase in the click‐to‐release reaction rate between cleavable trans‐cyclooctenes (TCO) and tetrazines would be beneficial for drug delivery applications. In this work, we have developed a short and stereoselective synthesis route towards highly reactive sTCOs that serve as cleavable linkers, affording quantitative tetrazine‐triggered payload release. In addition, the fivefold more reactive sTCO exhibited the same in vivo stability as current TCO linkers when used as antibody linkers in circulation in mice.
摘要提高可裂解反式环辛烯(TCO)与四氮杂环辛烷之间的点击释放反应速率将有利于药物释放应用。在这项工作中,我们开发出了一条简短的立体选择性合成路线,获得了可作为可裂解连接体的高活性 sTCO,从而实现了四嗪触发的有效载荷定量释放。此外,活性提高五倍的 sTCO 在小鼠体内循环中用作抗体连接体时,其体内稳定性与目前的 TCO 连接体相同。