Article: article from journal or magazin.
Characterization of lassa virus cell entry inhibitors: determination of the active enantiomer by asymmetric synthesis.
Bioorganic and Medicinal Chemistry Letters
The comparative characterization of a series of 4-acyl-1,6-dialkylpiperazin-2-ones as potent cell entry inhibitors of the hemorrhagic fever arenavirus Lassa (LASV) is disclosed. The resolution and examination of the individual enantiomers of the prototypical LASV cell entry inhibitor 3 (16G8) is reported and the more potent (-)-enantiomer was found to be 15-fold more active than the corresponding (+)-enantiomer. The absolute configuration of (-)-3 was established by asymmetric synthesis of the active inhibitor (-)-(S)-3 (lassamycin-1). A limited deletion scan of lassamycin-1 defined key structural features required of the prototypical inhibitors.
Antiviral Agents/chemical synthesis, Antiviral Agents/chemistry, Benzofurans/chemical synthesis, Benzofurans/chemistry, Cell Line, Tumor, Humans, Lassa virus/drug effects, Piperazines/chemical synthesis, Piperazines/chemistry, Stereoisomerism, Virus Internalization/drug effects
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