Used as an intermediate in the synthesis of biologically active compounds, particularly in the development of pharmaceutical agents targeting enzyme inhibition. Its fused heterocyclic structure makes it valuable in medicinal chemistry for designing inhibitors with high selectivity. Commonly employed in research settings to develop potential anti-inflammatory, antimicrobial, or antiviral agents. Also utilized in the preparation of novel derivatives for structure-activity relationship (SAR) studies. Its carboxylic acid functionality allows for easy derivatization, enabling the formation of amides, esters, and other functional groups to optimize pharmacokinetic properties.