Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors for cancer treatment. It serves as a building block in medicinal chemistry to introduce the quinazoline scaffold, which is known for its biological activity in targeting enzymes involved in cell signaling pathways. Its acetate group allows for selective deprotection or further functionalization in multi-step organic syntheses. Commonly applied in research settings for designing potent and selective inhibitors in oncology and inflammatory disease drug discovery.