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  • Saturday, March 1, 2008
  • 1,3-Dipropyl-8-(1-phenylacetamide-1H-pyrazol-3-yl)-xanthine derivatives as highly potent and selective human A2B adenosine receptor antagonists
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  • A new series of 1,3-dipropyl-8-(1-phenylacetamide-1H-pyrazol-3-yl)-xanthine derivatives has been identified as potent A2B adenosine receptor antagonists. The products have been evaluated for their binding affinities for the human A2B, A1, A2A, and A3 adenosine receptors. N-(4-chloro-phenyl)-2-[3-(2,6-dioxo-1,3-dipropyl-2,3,6,7-tetrahydro-1H-purin-8-yl)-5-methyl-pyrazol-1-yl] (11c) showed a high affinity for the human A2B adenosine receptor Ki = 7 nM and good selectivity (A1, A2A, A3/A2B > 140). Synthesis and SAR of this novel class of compounds is presented herein.

    Bioorganic & Medicinal Chemistry, Volume 16, Issue 5, 1 March 2008, Pages 2419-2430

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Abdel-Naser Mohammad Tawfeeq Zaid
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