Synthesis of chlorinated fluoresceins for labeling proteins
作者:Min Tian、Xiang-Long Wu、Bin Zhang、Jian-Li Li、Zhen Shi
DOI:10.1016/j.bmcl.2008.01.114
日期:2008.3
Two novel chlorinated fluoresceins 4,7,2',7'-tetrachloro-6-(5-carboxypentyl)fluorescein (8a) and 4,7,4',5'-tetra-chloro-6-(5-carboxypentyl)fluorescein (8b) were synthesized as fluorescent probes for labeling proteins. These two fluoresceins contain 6-aminohexanoic acid as spacer linker to minimize the fluorescence quenching of the fluorescein molecules by the proteins to be labeled.