Used as a chiral intermediate in the synthesis of pharmaceuticals, particularly in the production of active pharmaceutical ingredients (APIs) requiring high enantiomeric purity. Its Boc-protected amine and activated tosylate group allow selective functionalization, making it valuable in multi-step organic syntheses. Commonly employed in the development of protease inhibitors and central nervous system agents. The compound’s stability and defined stereochemistry support its use in asymmetric synthesis and medicinal chemistry research.