Used as a key intermediate in the synthesis of quinolone-based pharmaceuticals, particularly in the development of fluorinated quinolone antibiotics. Its structure allows for further functionalization at the 3-position carboxylate and the halogen sites, enabling the formation of active drug candidates with enhanced antimicrobial activity. Commonly employed in medicinal chemistry research for constructing novel quinoline derivatives targeting DNA gyrase and topoisomerase IV enzymes. Also utilized in the preparation of kinase inhibitors and other bioactive molecules in oncology and anti-inflammatory drug discovery.