Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of protease inhibitors and other bioactive molecules. Its structure allows for selective modification in peptide-based drug design, making it valuable in medicinal chemistry for creating targeted therapies. Commonly employed in solid-phase and solution-phase peptide synthesis due to the presence of both carboxylic acid and protected amine functionalities. Also utilized in the preparation of enzyme inhibitors where controlled functional group reactivity is required.