Three alkoxyalkyl 2-carboxylate ester derivatives related to zanamivir were synthesized. All of the analogs of zanamivir modified at carboxylic moiety with alkoxyalkyl esters 1a-c showed higher activities than ribavirin on influenza A and B virus in the MDCK cells. Oral treatment or intraperitoneal administration of compound 1c showed significantly protective effects in mice infected with influenza A virus with low toxicities.
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| http://dx.doi.org/10.1016/j.bmcl.2007.06.049 | DOI Listing |
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