Used as a chiral building block in the synthesis of complex peptides and peptidomimetics, particularly in pharmaceutical research. Its protected amine and ester functionalities allow for selective coupling reactions, making it valuable in solid-phase and solution-phase peptide synthesis. Commonly employed in the development of enzyme inhibitors and bioactive molecules where stereochemistry is critical. The Boc-protected amino group enables controlled deprotection under mild acidic conditions, facilitating stepwise assembly of multi-residue peptides. Widely applied in medicinal chemistry for constructing intermediates in drug discovery programs, especially for protease inhibitors and other target-based therapeutics.