Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of antiviral and antidiabetic agents. Its fluorinated pyrrolidine structure enhances metabolic stability and bioavailability in drug candidates. Commonly employed in the preparation of protease inhibitors and enzyme modulators due to its ability to mimic natural amino acids while resisting degradation. Also utilized in medicinal chemistry for structure-activity relationship (SAR) studies to optimize potency and selectivity.