Used in the synthesis of antiviral drugs, particularly as an intermediate in nucleoside analogs targeting RNA viruses. Its structure supports activity against viruses such as hepatitis C and SARS-CoV-2 by inhibiting viral RNA replication. The fluorine and hydroxyl groups enhance metabolic stability and binding affinity to viral polymerase enzymes. Commonly employed in pharmaceutical research for developing potent, selective antiviral agents with improved pharmacokinetic profiles.