Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of biologically active compounds where stereochemistry plays a critical role. Its protected amine and carboxylic acid functionalities make it ideal for peptide-like coupling reactions and heterocycle formation. Commonly employed in medicinal chemistry for constructing protease inhibitors, kinase inhibitors, and other drug candidates requiring a defined stereocenter. The Boc-protected morpholine ring adds solubility and conformational stability, enhancing pharmacokinetic properties in final drug molecules.