title: "Viologen" dendrimers as antiviral agents: the effect of charge number and distance.
abstract: A series of "viologen" derivatives (4,4'-bipyridinium salts) carrying between 1 and 90 charges per molecule have been prepared and investigated for their activity against human immunodeficiency virus (HIV), herpes simplex virus (HSV), vesicular stomatitis, Punta Toro virus, Sindbis virus, Reovirus, and respiratory syncytial viruses. In general, most of the compounds showed good activities against HIV-1 (strain III(B)). In particular, compound 36 exhibited the highest in vitro activity and selectivity index against HIV-1 (strain III(B)) (EC(50) = 0.26 +/- 0.08 microM, SI = 75.7) in MT-4 cells. The results imply that the antiviral activity requires an optimal number and distance of the positive charges.
authors.affiliation: Institute of Chemistry, University of Osnabrück, Barbarastrasse 7, D-49069 Osnabrück, Germany. sasaftei@uos.de
authors.forename: Simona
authors.initials: S
authors.lastname: Asaftei
authors.forename: Erik
authors.initials: E
authors.lastname: De Clercq
mesh_terms: D019380:Anti-HIV Agents / Q000737:chemistry* / Q000494:pharmacology; D000998:Antiviral Agents / Q000737:chemistry* / Q000494:pharmacology; D002460:Cell Line; D050091:Dendrimers / Q000737:chemistry* / Q000494:pharmacology; D006678:HIV / Q000187:drug effects; D006801:Humans; D055672:Static Electricity; D013329:Structure-Activity Relationship; D014755:Viologens / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D019380:Anti-HIV Agents; D000998:Antiviral Agents; D050091:Dendrimers; D014755:Viologens