Used as a key intermediate in the synthesis of biologically active compounds, particularly in the preparation of peptidomimetics and protease inhibitors. Its protected amine group and diazo functionality allow selective reactions in multi-step organic syntheses. Commonly employed in medicinal chemistry for constructing nitrogen-containing heterocycles and in the development of kinase inhibitors. The Boc-protected amine ensures stability during transformations, while the diazo group can undergo cyclization or dipolar reactions to form complex molecular architectures. Also applied in the synthesis of natural products and pharmaceuticals where controlled reactivity and functional group compatibility are essential.