Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of active pharmaceutical ingredients (APIs) for central nervous system (CNS) agents and receptor modulators. Its structure supports the construction of complex nitrogen-containing heterocycles, making it valuable in medicinal chemistry for drug discovery. Commonly employed in the preparation of protease inhibitors and receptor agonists/antagonists due to its favorable stereochemistry and functional group compatibility. Also utilized in combinatorial chemistry and parallel synthesis for generating compound libraries in early-stage research.