Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of peptide-based drugs and heterocyclic compounds. Its protected amine group and reactive carbonyl functionality make it valuable for constructing complex nitrogen-containing ring systems. Commonly employed in medicinal chemistry for the preparation of protease inhibitors and kinase inhibitors. Also utilized in solid-phase and solution-phase peptide synthesis where controlled reactivity and protection are required. Its structure allows for selective modifications, enabling the creation of diverse molecular scaffolds in drug discovery.