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Structure–Activity Relationships and Molecular Modeling of 1,2,4-Triazoles as Adenosine Receptor Antagonists
Stockholm University, Faculty of Science, Department of Biochemistry and Biophysics.
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2012 (English)In: ACS Medicinal Chemistry Letters, ISSN 1948-5875, Vol. 3, no 9, 715-720 p.Article in journal (Refereed) Published
Abstract [en]

The structure–activity relationship (SAR) for a novel class of 1,2,4-triazole antagonists of the human A2A adenosine receptor (hA2AAR) was explored. Thirty-three analogs of a ligand that was discovered in a structure-based virtual screen against the hA2AAR were tested in hA1, A2A, and A3 radioligand binding assays and in functional assays for the A2BAR subtype. As a series of closely related analogs of the initial lead, 1, did not display improved binding affinity or selectivity, molecular docking was used to guide the selection of more distantly related molecules. This resulted in the discovery of 32, a hA2AAR antagonist (Ki 200 nM) with high ligand efficiency. In light of the SAR for the 1,2,4-triazole scaffold, we also investigated the binding mode of these compounds based on docking to several A2AAR crystal structures.

Place, publisher, year, edition, pages
2012. Vol. 3, no 9, 715-720 p.
Keyword [en]
1, 2, 4-Triazole, A2A adenosine receptor, antagonist, molecular docking, structure−activity relationship
National Category
Biological Sciences
URN: urn:nbn:se:su:diva-85356DOI: 10.1021/ml300097gISI: 000312416200010OAI: diva2:583470
Available from: 2013-01-08 Created: 2013-01-08 Last updated: 2013-02-15Bibliographically approved

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Carlsson, Jens
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Department of Biochemistry and Biophysics
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