Used as a chiral intermediate in the synthesis of pharmaceutical compounds, particularly in the development of protease inhibitors and other biologically active molecules. Its structure supports the formation of peptide-like chains with specific stereochemistry, making it valuable in medicinal chemistry for optimizing drug potency and selectivity. Commonly employed in solid-phase and solution-phase peptide synthesis where the Boc-protected amine allows for controlled deprotection and coupling steps. The nitrile group can be further modified to introduce heterocycles or other functional groups, expanding its utility in drug discovery.