Used as a key intermediate in the synthesis of antiviral pharmaceuticals, particularly in the production of protease inhibitors. Its chiral structure with protected functional groups makes it valuable for constructing complex drug molecules with high stereoselectivity. Commonly employed in the development of treatments for hepatitis C and other viral infections where precise molecular configuration is critical for biological activity. The tert-butyl carbamate (Boc) group allows for selective deprotection during multi-step syntheses, enabling efficient peptide coupling and cyclization reactions.