Used as an intermediate in pharmaceutical synthesis, particularly in the development of bioactive molecules and chiral building blocks. Its protected amine group allows for selective reactions in multi-step organic syntheses. Commonly employed in the preparation of protease inhibitors and receptor agonists due to the structural features of the pyrrolidine ring. The carboxylate salt form enhances stability and solubility, making it suitable for use in aqueous reaction conditions. Also utilized in the manufacture of specialty chemicals requiring enantiomerically pure amines.