Used as a chiral building block in pharmaceutical synthesis, particularly in the development of active pharmaceutical ingredients (APIs) requiring stereoselective structures. Its hydroxyl and amine functional groups allow for versatile derivatization, making it valuable in creating intermediates for drugs targeting central nervous system disorders and metabolic diseases. Commonly employed in the preparation of protease inhibitors and receptor modulators due to its rigid pyrrolidine scaffold and defined stereochemistry. Also utilized in the synthesis of novel bioactive compounds in medicinal chemistry research.