Used as a key intermediate in the synthesis of pharmaceutical agents, particularly in the development of protease inhibitors and antiviral drugs. Its fluorinated pyrrolidine structure enhances metabolic stability and bioavailability, making it valuable in medicinal chemistry for optimizing drug candidates. Commonly employed in the preparation of dipeptidyl peptidase-4 (DPP-4) inhibitors used in type 2 diabetes treatment. Also utilized in the design of enzyme inhibitors where stereochemistry and fluorination improve target selectivity and binding affinity.