Used as a key intermediate in the synthesis of kinase inhibitors, particularly in the development of anticancer agents. Its structure allows for selective modification at multiple sites, enabling the creation of targeted therapies that modulate protein kinase activity involved in tumor growth and cell proliferation. Commonly employed in medicinal chemistry research for generating compound libraries aimed at identifying potent and selective inhibitors of tyrosine kinases and other ATP-binding site-containing enzymes. Also utilized in the preparation of radiolabeled derivatives for use in pharmacokinetic and biodistribution studies.