Used as an intermediate in the synthesis of biologically active compounds, particularly in pharmaceutical research. It plays a key role in the development of protease inhibitors and other targeted therapies due to its chiral pyrrolidine structure, which is valuable for enhancing selectivity and potency in drug candidates. Commonly employed in asymmetric synthesis where the stereochemistry influences the biological activity of the final product. Also utilized in the preparation of kinase inhibitors and antiviral agents.