Bioorganic and Medicinal Chemistry Letters 2006-Jul
Development of N-2,4-pyrimidine-N-phenyl-N'-phenyl ureas as inhibitors of tumor necrosis factor alpha (TNF-alpha) synthesis. Part 1.
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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.