Used in the synthesis of pharmaceutical agents, particularly in developing compounds with anticancer, antiviral, and anti-inflammatory properties. It serves as a key intermediate in constructing quinazoline-based drug molecules that target enzyme inhibition, such as tyrosine kinase inhibitors. Its structure allows for easy functionalization, making it valuable in medicinal chemistry for optimizing drug potency and selectivity. Also employed in research for designing new bioactive molecules and in the development of heterocyclic compounds for therapeutic use.