Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of protease inhibitors and other bioactive molecules. Its chiral structure makes it valuable for constructing stereoselective drug candidates, especially in antiviral and anticancer research. The tert-butoxycarbonyl (Boc) protecting group allows for controlled reactivity during peptide coupling and multi-step organic syntheses. Commonly employed in medicinal chemistry for building complex heterocyclic systems with high enantiomeric purity.