KIN1400 is innate immune agonists of IRF3 activation that induces IRF3 and MAVS dependent innate immune antiviral genes and IFNβ expression. KIN1400 is a broad spectrum antiviral compound that suppresses replication of hepatitis C virus, West Nile virus, dengue virus and other Flaviviridae, as well as Filoviridae (EV), Orthomyxoviridae (influenza A virus), Arenaviridae (LV) and Paramyxoviridae (RCV, NV).