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 functionalization at multiple sites, enabling the development of derivatives with improved pharmacokinetics and broader spectrum against Gram-negative and Gram-positive bacteria. Commonly employed in pharmaceutical research to optimize quinolone-based drugs targeting DNA gyrase and topoisomerase IV enzymes.