Used as an intermediate in the synthesis of antiviral and anticancer agents, particularly in the development of nucleoside analogs. Its structure allows for selective modification of pyrimidine bases, making it valuable in medicinal chemistry for creating prodrugs and bioactive molecules. Commonly employed in solid-phase and solution-phase peptide and nucleotide synthesis due to the Boc-protected amine group, which enables controlled coupling reactions. Also utilized in the preparation of labeled nucleotides for biochemical assays and diagnostic applications.