Cyclopropavir (Filociclovir; MBX-400) is a compound of broad-spectrum anti-herpesvirus. It has good antiviral activity against cytomegalovirus (CMV), herpes simplex virus (HHV)-6 and HHV-8 (EC50s: 0.7 μM to 8 μM).
Galidesivir is a viral RNA-dependent RNA polymerase (RdRP) inhibitor and broad spectrum antiviral nucleotide.In vitro, galidesivir displays antiviral activity against a range of RNA viruses, including bunyaviruses, arenaviruses, paramyxoviruses, coronaviruses, and flaviviruses (EC50values range from 3 μM to >100 μM). Galidesivir protects against Ebola and Marburg viral infection in animal models.
Carbodine (Carbocyclic cytidine) is a broad-spectrum antiviral agent and targets CTP synthetase that converts UTP to CTP. It possesses significant antiviral activity against influenza virus types A0 PR-8 34 and A2 Aichi 2 68 in vitro.