Abstract
Tripeptide-derived molecules incorporating N-methyl amino acid residues and C-terminal Michael acceptor moieties were evaluated as irreversible inhibitors of the cysteine-containing human rhinovirus 3C protease (3CP). Such compounds displayed good 3CP inhibition activity (k(obs)/[I] up to 610,000 M(-1) s(-1)) and potent in vitro antiviral properties (EC50 approaching 0.03 microM) when tested against HRV serotype-14.
MeSH terms
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3C Viral Proteases
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Cysteine Endopeptidases / drug effects
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Cysteine Endopeptidases / metabolism*
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Drug Design
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Humans
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Peptides / chemical synthesis
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Peptides / pharmacology
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Protease Inhibitors / chemical synthesis*
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Protease Inhibitors / pharmacology
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Rhinovirus / drug effects
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Rhinovirus / enzymology*
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Structure-Activity Relationship
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Viral Proteins*
Substances
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Peptides
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Protease Inhibitors
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Viral Proteins
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Cysteine Endopeptidases
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3C Viral Proteases