Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of biologically active compounds requiring stereochemical control. Its aldehyde functionality allows for further derivatization through reactions such as reductive amination or nucleophilic addition, while the Boc-protected nitrogen ensures stability and selective deprotection during multi-step syntheses. Commonly employed in the preparation of kinase inhibitors, CNS-active agents, and other therapeutic molecules where the morpholine ring serves as a key structural motif. Its (R)-configuration makes it valuable for asymmetric synthesis, enabling the production of enantiomerically pure drugs.