Used as a key intermediate in the synthesis of fluoroquinolone antibiotics, particularly in the production of third-generation quinolones with enhanced antimicrobial activity. Its structure allows for functional modifications that improve drug potency, bioavailability, and resistance profiles. Commonly employed in pharmaceutical research and development for creating analogs targeting Gram-negative and Gram-positive bacterial infections. Also utilized in the preparation of compounds with potential antiviral and anticancer properties due to its ability to interact with DNA gyrase and topoisomerase enzymes.