Used as a key intermediate in the synthesis of pharmaceutical agents, particularly in the development of kinase inhibitors for cancer treatment. 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 building blocks in drug discovery programs, especially in the design of tyrosine kinase and JAK inhibitor candidates. Also utilized in research settings to develop new central nervous system (CNS) active agents due to its ability to cross biological membranes and interact with neural targets.