Used as a key intermediate in the synthesis of pharmaceutical agents, particularly in the development of kinase inhibitors for cancer treatment. It serves as a building block in the preparation of bioactive molecules targeting tyrosine kinase and EGFR pathways. Its structure allows for easy functionalization, making it valuable in medicinal chemistry for drug discovery. Also employed in the design of compounds with anti-inflammatory, antimicrobial, and antiviral properties. Commonly utilized in research settings for generating quinazoline-based libraries for high-throughput screening.