Used as a key intermediate in the synthesis of quinolone antibiotics, particularly in the production of fluoroquinolone drugs. Its structure allows for functionalization at multiple sites, enabling the development of antimicrobial agents with enhanced activity and improved pharmacokinetic profiles. Commonly employed in pharmaceutical research to build the core scaffold of antibiotics targeting DNA gyrase and topoisomerase IV in bacteria. Also utilized in medicinal chemistry for developing novel derivatives with potential antibacterial, antifungal, or anticancer properties.