Nucleoside analogues exerting antiviral activity through a non-nucleoside mechanism

In analogy with maribavir 1-(beta-L-ribofuranosyl)-isopropylamino-5,6-dichlorobenzimidazole], a nucleoside analogue that acts against human cytomegalovirus (HCMV) by a non-nucleoside mechanism, here I present three other examples of classes of nucleoside analogues (i.e. bicyclic furo2,3-d]pyrimidine as well as HEPT and TSAO derivatives) that act against either HCMV or human immunodeficiency virus (HIV) through a non-nucleoside mode of action.