Journal
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
Volume 22, Issue 1, Pages 461-467Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmcl.2011.10.104
Keywords
Histamine; H4R antagonist; GPCR; Binding kinetics; Fragment optimization
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The histamine H-4 receptor is a G protein-coupled receptor that has attracted much interest for its role in inflammatory and immunomodulatory functions. In our search for new H4R ligands, a low affinity isoquinoline fragment was optimized to 7-(furan-2-yl)-4-(piperazin-1-yl)quinazolin-2-amine (VUF11489), as a new H4R antagonist. Analysis of its binding kinetics at the human H4R showed this compound to have a very different dissociative half-life in comparison with reference antagonist JNJ7777120. (C) 2011 Elsevier Ltd. All rights reserved.
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