Used as a key chiral intermediate in the synthesis of pharmaceuticals, particularly in the production of antiviral and antidiabetic agents. Its protected pyrrolidine structure with defined stereochemistry makes it valuable for constructing complex molecules where stereocontrol is critical. Commonly employed in peptide mimetics and protease inhibitor development due to its ability to mimic natural amino acid frameworks while enhancing metabolic stability. The Boc-protected amine and free hydroxyl group allow for selective functionalization, enabling stepwise assembly in multi-step organic syntheses.