Used in pharmaceutical research as a key scaffold in the development of kinase inhibitors, particularly for targeting cancer-related enzymes such as EGFR and Aurora kinases. Its structure supports high binding affinity to ATP sites in kinases, making it valuable in designing small-molecule therapeutics. Also explored in medicinal chemistry for antiviral and anti-inflammatory drug candidates due to its ability to modulate biological pathways. Commonly functionalized at the 2-amino group to enhance solubility, selectivity, and metabolic stability in drug leads.