Used as a key intermediate in the synthesis of kinase inhibitors for cancer therapy. Shows activity in targeting tyrosine kinases involved in tumor growth and signal transduction. Employed in research for developing antitumor agents, particularly in melanoma and leukemia models. Also utilized in the preparation of fluorescent probes for studying enzyme activity due to its stable heterocyclic core. Common in medicinal chemistry for structure-activity relationship (SAR) studies of pyrrolopyrimidine-based drugs.