Used as an intermediate in pharmaceutical synthesis, particularly in the development of bioactive molecules and drug candidates. Its protected pyrrolidine structure allows for selective reactions at specific sites, making it valuable in constructing complex organic compounds. The chloroacetyl group enables further functionalization through nucleophilic substitution, facilitating the introduction of amine or thiol groups. Commonly employed in the preparation of protease inhibitors and other therapeutic agents where pyrrolidine scaffolds enhance metabolic stability and binding affinity.