Anti-virus agent 1 (compound 4i), a phosphoramidate prodrug of GS-5734, exhibits potent antiviral efficacy. It is primarily utilized in the study of coronavirus and Ebola virus (EBOV).
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).