This compound is primarily used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). It serves as a protected amino acid derivative, where the Fmoc (fluorenylmethyloxycarbonyl) group acts as a temporary protecting group for the amine functionality. The (3S,4S) stereochemistry ensures precise control over the peptide's structure, which is crucial for maintaining biological activity. The hydroxyl and phenyl groups in the structure can influence the peptide's interaction with target molecules, making it valuable in designing peptides for pharmaceutical research, such as enzyme inhibitors or receptor ligands. Its application is significant in developing therapeutic peptides and studying protein-protein interactions.