Inhibition of RNA Helicases of ssRNA⁺ Virus Belonging to Flaviviridae, Coronaviridae and Picornaviridae Families

Figure 11

Chemical structure of 1-(2′-O-Methyl-β-D-ribofuranosyl)imidazo[4,5-d]pyridazine-4, 7(5H, 6H)-dione (HMC-HO4) (60).