Used as a key intermediate in the synthesis of kinase inhibitors, particularly in the development of anticancer agents. Its structure allows selective modification to target specific signaling pathways in tumor cells. Commonly employed in medicinal chemistry for creating compounds that modulate protein kinase activity, especially in research focused on tyrosine kinases involved in cell proliferation. Also utilized in the preparation of small-molecule therapeutics for inflammatory and neurodegenerative diseases due to its ability to cross cell membranes and interact with intracellular enzymes.