Used as a key intermediate in the synthesis of quinolone antibiotics, particularly in the development of fluoroquinolone drugs. Its structure allows for functionalization at multiple sites, enabling the introduction of pharmacologically active side chains. Commonly employed in medicinal chemistry to build naphthyridine-based compounds with antimicrobial, antiviral, and anticancer activities. Also utilized in research settings for designing enzyme inhibitors and bioactive molecules targeting DNA gyrase and topoisomerase IV.