Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) where stereochemistry plays a critical role. Its protected amine group and bromine functionality allow for selective reactions, making it valuable in multi-step organic syntheses. Commonly employed in the preparation of bioactive molecules such as protease inhibitors, receptor agonists, and central nervous system agents. The tert-butyl carbamate (Boc) protection ensures stability during reactions and can be easily removed under mild acidic conditions when needed.