Used primarily as an intermediate in organic synthesis, especially in the development of pharmaceuticals and bioactive compounds. Its structure allows it to serve as a building block in the formation of more complex molecules, particularly in medicinal chemistry research. The presence of both morpholino and nitrophenyl groups makes it valuable in reactions where selective functionalization or conjugation is needed. It is also employed in the synthesis of protease inhibitors and other therapeutic agents due to its ability to mimic peptide bonds or stabilize molecular conformation. Additionally, it finds use in the preparation of enzyme inhibitors and in structure-activity relationship (SAR) studies during drug discovery.