Used as a key chiral intermediate in the synthesis of pharmaceutical compounds, particularly in the development of protease inhibitors and other biologically active molecules. Its (2S,4S) stereochemistry allows for selective interactions in drug design, enhancing potency and specificity. Commonly employed in medicinal chemistry for constructing complex cyclic frameworks found in antiviral and anticancer agents. The Boc-protected amine and carboxylic acid functionalities enable stepwise coupling reactions, making it valuable in solid-phase and solution-phase peptide-like synthesis.