Ribofuranosylselenazole-4-Carboxamide, a New Antiviral Agentt JORMA J
ANTiMICROBIAL AGENTS AND CHEMOTHERAPY, Sept. 1983, P. 353-361 Vol. 24, No. 3 0066-4804/83/090353-09$02.00/0 Copyright 0 1983, American Society for Microbiology Broad-Spectrum Antiviral Activity of 2-p-D- Ribofuranosylselenazole-4-Carboxamide, a New Antiviral Agentt JORMA J. KIRSI,'* JAMES A. NORTH,1 PATRICIA A. McKERNAN,1 BYRON K. MURRAY,2 PETER G. CANONICO,3 JOHN W. HUGGINS,3 PREM C. SRIVASTAVA,4 AND ROLAND K. ROBINS5 Department ofMicrobiology1 and Cancer Research Center, Department of Chemistry,5 Brigham Young University, Provo, Utah 84602; Department ofMicrobiology and Immunology, Virginia Commonwealth University, Richmond, Virginia 232982; Department ofAntiviral Studies, U.S. Army Medical Research Institute ofInfectious Diseases, Fort Detrick, Frederick, Maryland 217103; and Health and Safety Research Division (Nuclear Medicine Technology Group), Oak Ridge National Laboratory, Oak Ridge, Tennessee 378304 Received 7 February 1983/Accepted 13 June 1983 The relative in vitro antiviral activities of three related nucleoside carboxam- ides, ribavirin (1-3-D-ribofuranosyl-1,2,4-triazole-3-carboxamide), tiazofurin (2- 3-D-ribofuranosylthiazole-4-carboxamide), and selenazole (2-p-D-ribofuranosyl- selenazole-4-carboxamide), were studied against selected DNA and RNA viruses. Although the activity of selenazole against different viruses varied, it was significantly more potent than ribavirin and tiazofurin against all tested represen- tatives of the families Paramyxoviridae (parainfluenza virus type 3, mumps virus, measles virus), Reoviridae (reovirus type 3), Poxviridae (vaccinia virus), Herpes- viridae (herpes simplex virus types 1 and 2), Togaviridae (Venezuelan equine encephalomyelitis virus, yellow fever virus, Japanese encephalitis virus), Bunya- viridae (Rift Valley fever virus, sandfly fever virus [strain Sicilian], Korean hemorrhagic fever virus), Arenaviridae (Pichinde virus), Picornaviridae (coxsack- ieviruses B1 and B4, echovirus type 6, encephalomyocarditis virus), Adenoviri- dae (adenovirus type 2), and Rhabdoviridae (vesicular stomatitis virus).
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