Used in pharmaceutical research as a key intermediate in the development of kinase inhibitors, particularly targeting enzymes involved in inflammatory and oncological pathways. Its structure supports high binding affinity to specific protein targets, making it valuable in optimizing lead compounds for drug candidates. Also investigated for use in PET imaging probes due to its favorable metabolic stability and ability to cross biological membranes. Commonly employed in structure-activity relationship (SAR) studies to enhance potency and selectivity in small-molecule therapeutics.