Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors for cancer treatment. Exhibits strong potential in targeting specific signaling pathways involved in tumor growth and inflammation. Also utilized in research settings to design selective inhibitors due to its ability to bind effectively with ATP-binding sites in proteins. Its sulfone and chloropyrimidine groups enhance binding affinity and metabolic stability, making it valuable in medicinal chemistry for optimizing drug candidates.