Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of enzyme inhibitors and bioactive molecules. Its rigid pyrrolidine structure with defined stereochemistry makes it valuable in medicinal chemistry for designing drugs targeting neurological and metabolic disorders. Commonly employed in asymmetric synthesis to introduce stereoselectivity. Also utilized in the preparation of peptidomimetics due to its ability to mimic amino acid structure while enhancing stability against degradation.