Used as a key intermediate in the synthesis of antiviral and anticancer nucleoside analogs. Its structure mimics natural nucleosides, allowing incorporation into biochemical pathways to inhibit viral replication or tumor growth. Commonly employed in the preparation of modified RNA/DNA components for drug development, especially in prodrug strategies targeting specific enzymes in diseased cells. Also utilized in click chemistry due to the azido group, enabling efficient conjugation for labeling or delivery systems in pharmaceutical research.