Used as a chiral building block in the synthesis of pharmaceutical intermediates, particularly in the development of bioactive molecules requiring stereochemical control. Its morpholine ring and activated methylsulfonyloxymethyl group enable selective alkylation reactions, making it valuable in constructing complex organic molecules for drug discovery. Commonly employed in the preparation of protease inhibitors and other therapeutic agents where enantiomeric purity is critical. The tert-butyl carbamate (Boc) protection allows for orthogonal protection strategies in multi-step syntheses, facilitating peptide and heterocycle assembly.