Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of active pharmaceutical ingredients (APIs) that require piperazine-based structures. Its protected amine group allows for selective reactions in multi-step organic syntheses, making it valuable in drug discovery. Commonly employed in the preparation of kinase inhibitors, antimicrobial agents, and central nervous system (CNS) active drugs. The tert-butyloxycarbonyl (Boc) protection ensures stability during reactions and can be easily removed under mild acidic conditions, enabling efficient deprotection without damaging sensitive functional groups in complex molecules.