Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) requiring high enantiomeric purity. Its structure supports asymmetric synthesis, making it valuable in creating stereoselective drugs such as certain antiviral agents, central nervous system modulators, and protease inhibitors. Commonly employed in medicinal chemistry for constructing complex molecules where the S-configuration is critical for biological activity. Also utilized as a ligand or intermediate in catalytic reactions and in the preparation of bioactive pyrrolidine derivatives.