This compound is primarily used in the field of peptide synthesis, particularly in the preparation of glycopeptides. It serves as a building block for introducing glycosylated serine residues into peptide chains. The Fmoc group provides protection for the amino group during solid-phase peptide synthesis, while the acetylated GlcNAc moiety allows for the incorporation of glycosylation, which is crucial for studying biological processes such as protein folding, cell signaling, and immune responses. Its application is significant in the development of glycopeptide-based therapeutics and vaccines, as well as in research exploring the role of glycosylation in disease mechanisms.