Synthesis of a Fluorogenic Cyclooctyne Activated by Cu-Free Click Chemistry
作者:John C. Jewett、Carolyn R. Bertozzi
DOI:10.1021/ol2025026
日期:2011.11.18
Cyclooctyne-based probes that become fluorescent upon reaction with azides are important targets for real-time imaging of azide-labeled biomolecules. The concise synthesis of a coumarin-conjugated cyclooctyne, coumBARAC, that undergoes a 10-fold enhancement in fluorescence quantum yield upon triazole formation with organic azides is reported. The design principles embodied in coumBARAC establish a platform for generating