Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the production of beta-amino alcohols and active pharmaceutical ingredients (APIs) requiring high enantiomeric purity. Its protected amine group allows for selective reactions in multi-step organic syntheses, making it valuable in drug development for cardiovascular agents, antibiotics, and central nervous system therapeutics. Commonly employed in asymmetric synthesis due to the stability and ease of removal of the Boc (tert-butoxycarbonyl) protecting group under mild acidic conditions.