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2-Arylbenzimidazoles as antiviral and antiproliferative agents: Part 2

Vitale, Gabriella and Corona, Paola and Loriga, Mario and Carta, Antonio and Paglietti, Giuseppe and La Colla, Paolo and Busonera, Bernardetta and Marongiu, Esther and Collu, David and Loddo, Roberta (2009) 2-Arylbenzimidazoles as antiviral and antiproliferative agents: Part 2. Medicinal Chemistry, Vol. 5 (6), p. 507-516. ISSN 1573-4064. Article.

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In prosecution of an anti-Flaviviridae project a new series of variously substituted 2-diphenyl-benzimidazoles were synthesized and tested in vitro for antiviral and antiproliferative activities. Compounds were tested in cell-based assays against viruses representative of: i) two of the three genera of the Flaviviridae family, i.e. Flaviviruses and Pestiviruses; ii) other RNA virus families, such as Retroviridae, Picornaviridae, Paramyxoviridae, Rhabdoviridae and Reoviridae; iii) two DNA virus families (Herpesviridae and Poxviridae). The 5- Acetyl-2-(4'-nitrobiphenyl-4-yl)-1H-benzimidazole (24) emerged as potent active lead compound against Yellow Fever Virus (a Flavivirus) (EC50= 0.5 μM) and CVB-2 at 1 μM and was not cytotoxic, whereas the other title benzimidazoles showed no antiviral activity at concentrations not cytotoxic for the resting cell monolayers. Among the examined series, the most cytotoxic derivatives (11,12,14,16,18,19,20,21,23,25-30) against mock-infected MT-4 cells (CC50 < 8.0 μM) were evaluated against a panel of human cell lines derived from haematological and solid tumours, using 6-mercaptopurine (6-MP) and etoposide as reference drugs. In particular, compounds 26 and 28 showed a similar potency of 6-MP and etoposide.

Item Type:Article
ID Code:4502
Uncontrolled Keywords:2-arylbenzimidazoles, antiviral, antiproliferative activities, flaviviridae, retroviridae, poxviridae
Subjects:Area 03 - Scienze chimiche > CHIM/08 Chimica farmaceutica
Divisions:001 Università di Sassari > 01 Dipartimenti > Farmaco, chimico, tossicologico
Publisher:Bentham Science
Deposited On:07 Sep 2010 15:55

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