Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antihypertensive and anticancer agents. Its structure supports the formation of quinazoline-based compounds that exhibit kinase inhibition activity, making it valuable in targeted cancer therapies. Also employed in research for designing novel bioactive molecules due to its ability to interact with enzyme active sites. Commonly utilized in medicinal chemistry for structure-activity relationship (SAR) studies to optimize drug candidates.