Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development 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 preparation of protease inhibitors and other biologically active compounds where stereochemistry plays a critical role in activity. Also utilized in the production of specialty intermediates for drug discovery research, especially in central nervous system (CNS) agents and antiviral drugs. The Boc-protected group ensures stability during reactions and can be easily deprotected under mild acidic conditions, making it ideal for solid-phase and solution-phase peptide-like synthesis.