Used as a chiral intermediate in the synthesis of pharmaceuticals, particularly in the development of protease inhibitors and other biologically active molecules. Its (S)-stereochemistry allows for selective reactions in asymmetric synthesis, making it valuable in creating enantiomerically pure drugs. The Boc-protected amine and ester functionalities enable stepwise deprotection and coupling, useful in peptide-like chain elongation and multi-step drug manufacturing. The difluoromethoxy group enhances stability against enzymatic degradation and improves cell membrane permeability. Commonly applied in research and development of antiviral and anticancer agents.