Used as a key intermediate in the synthesis of kinase inhibitors, particularly in the development of anticancer agents. Its structure allows for selective modification to target specific protein kinases involved in tumor growth and signal transduction pathways. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its ability to enhance binding affinity and selectivity toward ATP-binding sites in kinases. Also utilized in the preparation of labeled compounds for biochemical assays and imaging studies, supporting drug discovery and pharmacokinetic evaluation.