Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) where stereochemistry plays a critical role in biological activity. Its amine functionality and chiral center make it valuable in asymmetric synthesis and medicinal chemistry for creating enantioselective drugs. Commonly employed in the preparation of central nervous system agents and receptor-targeted compounds due to the structural similarity to bioactive amines. Also utilized in the optimization of drug candidates for improved selectivity and metabolic stability.