Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of protease inhibitors and other bioactive molecules. Its stereochemistry makes it valuable for constructing enantiomerically pure compounds. Commonly employed in medicinal chemistry for structure-activity relationship studies due to the stability and conformational rigidity of the morpholine ring. Serves as an intermediate in the preparation of drug candidates targeting viral infections and metabolic disorders. The Boc-protected amine allows for selective deprotection and further functionalization in multi-step syntheses.