Selective Inhibition of Enterovirus A Species Members' Reproduction by Furano[2, 3- d]pyrimidine Nucleosides Revealed by Antiviral Activity Profiling against (+)ssRNA Viruses

ChemistrySelect. 2018 Feb 28;3(8):2321-2325. doi: 10.1002/slct.201703052. Epub 2018 Feb 27.

Abstract

The rational design of broad-spectrum antivirals requires data on antiviral activity of compounds against multiple viruses, which are often not available. We have developed a panel of (+)ssRNA viruses composed of Enterovirus and Flavivirus genera members allowing to study these activity spectra. Antiviral activity profiling of a set of nucleoside analogues revealed N 4-hydroxycytidine as an efficient inhibitor of replication of coxsackieviruses and other enteroviruses, but ineffective against tick-borne encephalitis virus. Furano[2, 3-d]pyrimidine nucleosides with n-pentyl or n-hexyl tails showed selective inhibition of Enterovirus A representatives. 5-(Tetradec-1-yn-1-yl)-uridine showed selective inhibition of tick-borne encephalitis virus at the micromolar level.

Keywords: antiviral agents; enterovirus; nucleoside analogues; structure-activity relationships; tick-borne encephalitis virus.