Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) requiring high enantiomeric purity. Its protected amine group allows for selective reactions in multi-step organic syntheses. Commonly employed in the preparation of neuroactive compounds and central nervous system (CNS) agents due to the pyrrolidine scaffold’s prevalence in bioactive molecules. Also utilized in medicinal chemistry for structure-activity relationship (SAR) studies to optimize drug candidates.