Used in the synthesis of complex glycoconjugates and glycopeptides, particularly in solid-phase peptide synthesis where precise carbohydrate modifications are required. The acetyl protecting groups stabilize sugar hydroxyls during coupling reactions, while the Fmoc group on serine allows for controlled, stepwise assembly of peptide chains. This compound serves as a key building block for preparing glycosylated peptides that mimic natural post-translational modifications, useful in vaccine development, immunological studies, and drug discovery targeting carbohydrate-mediated biological interactions.