Used as a key synthetic intermediate in the production of fluoroquinolone antibiotics, particularly in the preparation of ofloxacin and its enantiomer levofloxacin. It plays a critical role in constructing the core quinolone structure necessary for antibacterial activity. Due to its reactive functional groups, it allows for further chemical modifications to enhance pharmacokinetic properties and antimicrobial efficacy. Commonly employed in pharmaceutical research and development for generating novel derivatives with improved activity against resistant bacterial strains.