文摘
Green fluorescence-emitting d-glucose derivatives such as 2-NBDG have been effectively used to monitor d-glucose uptake through glucose transporters GLUTs at the single cell level. By contrast, GLUT-permeable d-glucose derivatives emitting blue fluorescence have been long awaited. A glucose tracer, 2-deoxy-2-(2-oxo-2H-chromen-7-yl)amino-d-glucose (CDG) (1), together with related compounds have been synthesized by Pd-catalyzed C–N coupling. Of these, CDG (1) is a promising blue fluorescence-emitting candidate molecule that may enter into mammalian cells through GLUTs.