Used as a key intermediate in the synthesis of β-lactam antibiotics, particularly in the preparation of penem and carbapenem classes. Its structure allows for efficient introduction of the benzyl-protected β-lactam core, which is essential for constructing the active pharmacophore in broad-spectrum antibiotics. The compound is valuable in pharmaceutical manufacturing for enabling stereoselective transformations and facilitating side-chain modifications that enhance antimicrobial activity and stability against β-lactamases.