Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of quinolone antibiotics. It serves as a building block for introducing the benzoxazine core, which enhances the biological activity and stability of active drug compounds. Its structure allows for selective modifications, making it valuable in medicinal chemistry for creating analogs with improved efficacy and pharmacokinetic properties. Also employed in research settings to explore new heterocyclic compounds with potential antimicrobial, anti-inflammatory, or anticancer activities.