^Vendeville S, Lin TI, Hu L, Tahri A, McGowan D, Cummings MD, et al. (July 2012). "Finger loop inhibitors of the HCV NS5b polymerase. Part II. Optimization of tetracyclic indole-based macrocycle leading to the discovery of TMC647055". Bioorganic & Medicinal Chemistry Letters. 22 (13): 4437–43. doi:10.1016/j.bmcl.2012.04.113. PMID22633687.
^Cummings MD, Lin TI, Hu L, Tahri A, McGowan D, Amssoms K, et al. (March 2014). "Discovery and early development of TMC647055, a non-nucleoside inhibitor of the hepatitis C virus NS5B polymerase". Journal of Medicinal Chemistry. 57 (5): 1880–92. doi:10.1021/jm401396p. PMID24144360.