Used primarily as a key intermediate in the synthesis of linezolid, a synthetic antibiotic belonging to the oxazolidinone class. It plays a critical role in the development of antimicrobial agents effective against Gram-positive bacteria, including drug-resistant strains such as MRSA (methicillin-resistant Staphylococcus aureus) and VRE (vancomycin-resistant enterococci). Due to its structural specificity, this compound enables precise construction of the core oxazolidinone ring system required for antibacterial activity. Its application is almost exclusively confined to pharmaceutical manufacturing, particularly in controlled environments for active pharmaceutical ingredient (API) production. Not used directly as a therapeutic agent.