Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of beta-blockers and other cardiovascular drugs. Its structure allows for the introduction of amine and ether functionalities, making it valuable in modifying drug potency and selectivity. Also employed in the preparation of functionalized polymers and as a building block in medicinal chemistry for creating libraries of compounds during drug discovery. The tert-butyloxycarbonyl (Boc) group provides protection for the amine during reactions, enabling selective and controlled synthesis steps.