ent-Sofosbuvir Desphosphate is a possible metabolite of Sofosbuvir (P839640) which is a prodrug that is metabolized to the active antiviral agent 2''-deoxy-2''-α-fluoro-β-C-methyluridine-5''-monophosphate and is currently being investigated in phase 3 clinical trials for the treatment of hepatitis C.
