Used as a protected amine intermediate in the synthesis of pharmaceutical compounds, particularly pyrimidine-based structures in bioactive molecules such as kinase inhibitors. The tert-butoxycarbonyl (Boc) group protects the amino functionality at the pyrimidin-2-ylmethyl position, enabling selective modifications during drug design. This enhances control over reaction pathways and allows for the creation of analogs with improved metabolic stability and binding affinity. Commonly employed in medicinal chemistry for developing therapeutics targeting oncology, inflammatory diseases, antivirals, and central nervous system disorders.