Used in pharmaceutical research as a key intermediate in the synthesis of kinase inhibitors, particularly for targeting protein kinases involved in inflammatory diseases and cancer. Its structure supports binding to ATP sites in kinases, making it valuable in developing anti-tumor agents. Also employed in the design of selective modulators for central nervous system targets due to its ability to cross the blood-brain barrier. Commonly found in early-stage drug discovery for structure-activity relationship (SAR) studies involving heterocyclic compounds.