Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the production of active pharmaceutical ingredients (APIs) requiring high enantiomeric purity. Its protected amine group allows for selective reactions in multi-step organic syntheses. Commonly employed in the development of central nervous system agents, including antidepressants and antiviral drugs. Also utilized in asymmetric synthesis to introduce stereochemically defined amine functionalities. Suitable for peptide modification and medicinal chemistry research due to its stability and ease of deprotection.