Used as a key intermediate in the synthesis of kinase inhibitors, particularly in the development of anticancer agents. Its structure allows for selective modification, making it valuable in creating compounds that target specific signaling pathways in tumor cells. Commonly employed in medicinal chemistry for constructing purine analogs with enhanced binding affinity. Also utilized in the preparation of fluorescent probes for biochemical assays due to its favorable photophysical properties. Its nitrile and amino groups facilitate coupling reactions, enabling rapid diversification for drug discovery libraries.