Journal
BIOORGANIC & MEDICINAL CHEMISTRY
Volume 18, Issue 12, Pages 4195-4201Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmc.2010.05.006
Keywords
Norovirus; MNV; Antiviral activity; (E)-2-Styrylchromones
Funding
- Fundacao para a Ciencia e a Tecnologia (FCT) [4040/2007, 62/94]
- FEDER
- POCI
- Joana Rocha-Pereira [SFRH/BD/48156/2008]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/48156/2008] Funding Source: FCT
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Human noroviruses (NoV) are now recognized as the most frequent cause of outbreaks and sporadic cases of acute gastroenteritis. Despite the significant economic impact and considerable morbidity of norovirus disease, no drug or vaccine is currently available to treat or prevent this disease, therefore the discovery of anti-norovirus drugs is urgent. In the present work, a total of 12 structure related chromone and (E)-2-styrylchromones were evaluated for their potential anti-norovirus activity using the murine norovirus (MNV) as a surrogate model for human NoV. From the 12 compounds studied, six (E)-2-styrylchromones were found to have with interesting antinorovirus activity. The best compounds of the series were (E)-5-hydroxy-2-styrylchromone and (E)-4'-methoxy-2-styrylchromone with an IC50 approximate to 7 mu M. A first insight into the mechanism of action of these compounds was possible. An interesting relationship between the anti-norovirus activity and the chemical structure was observed. The present study points out that the (E)-2-styrylchromones skeleton is an important one which deserves to be developed and further explored as new antiviral drugs against NoV. (C) 2010 Elsevier Ltd. All rights reserved.
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