... Among the tested non toxic bicyclic nucleosides and N 6 -alkyladenosines only [2,3- d ]furopyrimidine with C 10 H 21 substituent and N 6 -alkyladenosine showed moderate anti-HCV activity in a replicon system, and N 1 -hydroxyinosine demonstrated high anti-HCV activity and significant cytotoxicity. ... Moscow University Chemistry Bulletin . 2008, Vol. ... 2, P. 112 . Copyright (C) Chemistry Dept., ... Copyright (C) Chemisty Department of Moscow State University . ...