Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors. It plays a key role in medicinal chemistry for constructing biologically active molecules targeting inflammatory diseases and certain cancers. The tert-butyl carbamate group protects the amine during synthesis, allowing selective reactions at other sites, while the chloropyrimidine moiety serves as a handle for further coupling reactions. Its structure supports the creation of highly specific drug candidates in research and development settings.