Used in the synthesis of complex oligosaccharides and glycoconjugates, particularly in the development of glycoproteins and glycolipids for research in immunology and cancer biology. Serves as a glycosyl donor in solid-phase peptide synthesis, enabling site-specific glycosylation of serine residues. The presence of the Fmoc group allows for orthogonal protection in stepwise assembly, while the acetyl and benzylidene groups stabilize the sugar moiety during coupling reactions. Commonly applied in the preparation of antigenic mimics and vaccine candidates targeting carbohydrate-binding receptors.