Used as a chiral intermediate in the synthesis of complex pharmaceuticals, particularly in the production of protease inhibitors and other biologically active molecules. Its stereochemistry allows for selective reactions, making it valuable in asymmetric synthesis. Commonly employed in the development of antiviral and anticancer agents due to its ability to mimic peptide structures and enhance metabolic stability. The benzyl and tert-butoxycarbonyl (Boc) protecting groups facilitate stepwise construction of target molecules, enabling clean transformations and easy purification in multi-step syntheses.