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 and pyrrolidine functionalities make it valuable in the preparation of bioactive molecules, including neurologically active compounds and receptor ligands. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its stereochemical integrity and compatibility with peptide-like structures.