Late-stage C(sp 2 )–H and C(sp 3 )–H glycosylation of C -aryl/alkyl glycopeptides: mechanistic insights and fluorescence labeling

-aryl glycosides, while enabling the assembly of fluorescent-labeled glycoamino acids. The C-H activation approach represents an expedient and efficient strategy for peptide late-stage diversification in a programmable as well as chemo-, regio-, and diastereo-selective fashion.