Used as a key intermediate in the synthesis of biologically active compounds, particularly in pharmaceutical research. It serves as a building block for kinase inhibitors and other therapeutic agents targeting cancer and inflammatory diseases. Its structure supports the development of small molecule drugs due to the presence of fused heterocyclic core and functional groups that enhance binding to target proteins. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies and scaffold modification to improve drug potency and selectivity.