Used as a key intermediate in the synthesis of antiviral drugs, particularly in the production of nucleoside analogs. Its fluorinated structure enables enhanced metabolic stability and bioavailability in pharmaceuticals. Commonly employed in the development of treatments for RNA virus infections, including hepatitis C and SARS-CoV-2, due to its ability to mimic natural nucleosides and inhibit viral replication. Also utilized in the preparation of prodrugs where selective activation in target tissues is required.