Used in the treatment of hepatitis C virus (HCV) infections, particularly as an intermediate in the synthesis of active antiviral agents. It plays a role in inhibiting viral RNA replication by serving as a precursor to nucleoside analogs that interfere with the HCV polymerase enzyme. This compound supports the development of direct-acting antiviral regimens, often combined with other agents to improve efficacy and reduce drug resistance. Its application is primarily in research and pharmaceutical manufacturing rather than direct therapeutic use.