5′-Homoaristeromycin. Synthesis and antiviral activity against orthopox viruses

An efficient synthesis of 5′-homoaristeromycin has been developed. This permitted an extensive antiviral analysis, which found potent activity toward vaccinia, cowpox, and monkeypox viruses. For comparative purposes, 5′-homoadenosine was made available by a newly designed route and found to be inactive.