Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of protease inhibitors and other bioactive molecules. Its structure allows for selective functionalization, making it valuable in constructing complex piperazine-based drug candidates. Commonly employed in medicinal chemistry for optimizing pharmacokinetic properties such as solubility and metabolic stability. Also utilized in the preparation of peptide mimetics and enzyme inhibitors where controlled stereochemistry and protected functional groups are required.