Abstract
A new class of tumor necrosis factor alpha (TNF-alpha) synthesis inhibitors based on an N-2,4-pyrimidine-N-phenyl-N'-phenyl urea scaffold is described. Many of these compounds showed low-nanomolar activity against lipopolysaccharide stimulated TNF-alpha production. X-ray co-crystallization studies with mutated p38alpha showed that these trisubstituted ureas interact with the ATP-binding pocket in a pseudo-bicyclic conformation brought about by the presence of an intramolecular hydrogen bonding interaction.
Publication types
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Adenosine Triphosphate / chemistry
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Binding Sites
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Crystallography, X-Ray
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Hydrogen Bonding
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Lipopolysaccharides / antagonists & inhibitors
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Lipopolysaccharides / pharmacology
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Models, Molecular
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Molecular Structure
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Phenylurea Compounds / chemistry*
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Phenylurea Compounds / classification
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Phenylurea Compounds / pharmacology*
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Pyrimidines / chemistry*
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Pyrimidines / classification
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Pyrimidines / pharmacology*
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Stereoisomerism
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Structure-Activity Relationship
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Tumor Necrosis Factor-alpha / antagonists & inhibitors*
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Tumor Necrosis Factor-alpha / biosynthesis
Substances
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Lipopolysaccharides
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Phenylurea Compounds
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Pyrimidines
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Tumor Necrosis Factor-alpha
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Adenosine Triphosphate