Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors for cancer treatment. Its reactive chloromethyl group allows for easy functionalization, making it valuable in building complex heterocyclic structures found in bioactive molecules. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its ability to enhance binding affinity and selectivity. Also utilized in the preparation of pyrazolopyrimidine-based derivatives with potential antiviral and anti-inflammatory properties.