Used as a key chiral intermediate in the synthesis of pharmaceutical agents, particularly in the development of protease inhibitors and antiviral drugs. Its stereochemistry allows for selective binding in biological systems, making it valuable in creating enantiomerically pure compounds. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to the stability and modifiability of the pyrrolidine scaffold. Also utilized in the preparation of bioactive molecules where amine functionality can be acylated or alkylated to form amide or tertiary amine derivatives.