4'-Azido-2'-deoxy-2'-methyl-cytidine di-isobutyryl ester
TMC-649128 is under investigation in clinical trial NCT01391117 (TMC649128HPC1002 - a Trial inGenotype 1 Hepatitis C Virus (HCV) - Infected Participants to Determine the Safety, Tolerability, Pharmacokinetics and Antiviral Activity of TMC649128, Alone and Combined With Pegylated Interferon + Ribavirin).