Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly kinase inhibitors. Its structure enables selective modification for targeted drug development, especially in oncology research. Commonly employed in the preparation of pyrrolopyrimidine-based derivatives that exhibit biological activity against cancer cell lines. Also utilized in the development of tyrosine kinase inhibitors for potential use in treating various cancers and inflammatory diseases. The aldehyde functional group allows for easy derivatization, making it valuable in medicinal chemistry for building more complex bioactive molecules.