Used as an intermediate in the synthesis of fluoroquinolone antibiotics, particularly in the preparation of norfloxacin derivatives with enhanced bioavailability and antimicrobial activity. It plays a key role in medicinal chemistry for modifying the quinolone core structure to improve pharmacokinetic properties. Commonly employed in research settings to develop new antibacterial agents targeting DNA gyrase and topoisomerase IV in pathogenic bacteria. Also utilized in the pharmaceutical industry for scalable production of active pharmaceutical ingredients (APIs) due to its stability and reactivity in coupling reactions.