Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of protease inhibitors and other biologically active molecules. Its structure allows for selective functionalization, making it valuable in medicinal chemistry for building complex nitrogen-containing heterocycles. Commonly employed in solid-phase and solution-phase peptide synthesis due to the stability and orthogonal protection offered by the Boc group. Also utilized in the preparation of small-molecule drug candidates targeting neurological disorders and viral infections.