Used as a key intermediate in the synthesis of biologically active quinazoline derivatives, particularly in pharmaceutical research. It serves as a building block for developing kinase inhibitors, which are important in cancer therapy. The bromo group allows for further functionalization via cross-coupling reactions such as Suzuki or Buchwald-Hartwig, enabling the introduction of various substituents to optimize drug potency and selectivity. Also employed in the development of central nervous system agents and antimicrobial compounds due to the quinazolinone core’s inherent pharmacological properties. Its structure supports binding to various enzyme active sites, making it valuable in medicinal chemistry for lead optimization.