Used as an intermediate in the synthesis of pharmaceuticals and fine chemicals, particularly in the development of active pharmaceutical ingredients (APIs) where protection of the amino group is required. The BOC (tert-butyloxycarbonyl) group allows for selective protection during peptide or heterocycle synthesis, enabling controlled reaction conditions. Its hydroxyl functionality provides a site for further chemical modification, making it valuable in multi-step organic syntheses. Commonly employed in the preparation of protease inhibitors, kinase inhibitors, and other bioactive molecules in medicinal chemistry research.