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Updated: Apr 26, 2026

A Kinetic Fluorescence-based Ca2+ Mobilization Assay to Identify G Protein-coupled Receptor Agonists, Antagonists, and Allosteric Modulators
Published on: February 20, 2018
Discovery and optimization of 5-fluoro-4,6-dialkoxypyrimidine GPR119 agonists
Daniel J Buzard1, Sun Hee Kim1, Juerg Lehmann1
1Arena Pharmaceuticals Inc., 6154 Nancy Ridge Drive, San Diego, CA 92121, United States.
Abstract:
A series of 5-fluoro-4,6-dialkoxypyrimidine GPR119 modulators were discovered and optimized for in vitro agonist activity. A lead molecule was identified that has improved agonist efficacy relative to our clinical compound (APD597) and possesses reduced CYP2C9 inhibitory potential. This optimized lead was found to be efficacious in rodent models of glucose control both alone and in combination with a Dipeptidyl peptidase-4 (DPP-4) inhibitor.
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