Design, synthesis, and biological evaluations of phenylpropiolic acid derivatives as novel GPR40 agonists

Add time:07/11/2019    Source:sciencedirect.com

GPR40, also known as free fatty acid receptor 1 (FFAR1), is a member of G protein-coupled receptors (GPCR) family and has emerged as an attractive target for the treatment of type 2 diabetes mellitus. So far, most of the synthetic GPR40 agonists, including several drug candidates discontinued in clinical trials, were derived from the phenylpropionic acid scaffold. For discovering novel GPR40 agonists with diverse chemical structures, a series of phenylpropiolic acid derivatives were designed, synthesized, and evaluated under a battery of bioassays. Compound 9, the most potent compound in this series, exhibited submicromolar agonist activity and similar agonistic efficacy compared to that of TAK-875. In addition, compound 9 was able to dose-dependently amplify glucose-stimulated insulin secretion (GSIS) in pancreatic β-cell line MIN6, which could be reversed by a selective GPR40 antagonist GW1100. In addition, compound 9 was found to have potent glucose-lowering effects during an oral glucose tolerance test in normal C57BL/6 mice.

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