Used as an intermediate in the synthesis of β-lactam antibiotics, particularly in the preparation of carbapenem and cephalosporin classes. Its structure supports the formation of complex heterocyclic systems essential for antibiotic activity. The Z-configuration around the double bond is critical for proper stereochemical orientation during coupling reactions. Commonly employed in pharmaceutical research to develop novel antimicrobial agents with improved stability and resistance profiles. Also utilized in solid-phase peptide synthesis where selective protection and coupling are required.