Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors for cancer treatment. It serves as a building block in the preparation of quinazoline-based drugs that target epidermal growth factor receptor (EGFR) and other tyrosine kinases. Its nitrile and lactam functionalities allow for further chemical modifications, enabling the creation of diverse bioactive molecules. Commonly employed in medicinal chemistry for structure-activity relationship studies and optimization of drug candidates.