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 rigid, bicyclic structure and protected amine functionality make it valuable in asymmetric synthesis and medicinal chemistry for constructing complex molecules, especially in the design of protease inhibitors and other bioactive compounds. Commonly employed in research and process development for drug discovery due to its stability and ease of functionalization.