Used as a chiral intermediate in the synthesis of pharmaceuticals, particularly in the development of protease inhibitors and other biologically active molecules. Its stereochemistry allows for selective reactions in asymmetric synthesis, making it valuable in creating enantiomerically pure drugs. Commonly employed in peptide mimetics and enzyme inhibitor design due to the presence of functional groups that can be further modified. The Boc-protected amine and ester functionalities enable stepwise deprotection and coupling reactions, ideal for solid-phase and solution-phase peptide synthesis.