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Updated: Jun 18, 2026

Methods for the Discovery of Novel Compounds Modulating a Gamma-Aminobutyric Acid Receptor Type A Neurotransmission
Published on: August 16, 2018
Discovery of 3-aryl-4-isoxazolecarboxamides as TGR5 receptor agonists
Karen A Evans1, Brian W Budzik, Sean A Ross
1Discovery Research, GlaxoSmithKline Pharmaceuticals, Collegeville, PA 19426-0989, USA. karen.a.evans@gsk.com
Abstract:
A series of 3-aryl-4-isoxazolecarboxamides identified from a high-throughput screening campaign as novel, potent small molecule agonists of the human TGR5 G-protein coupled receptor is described. Subsequent optimization resulted in the rapid identification of potent exemplars 6 and 7 which demonstrated improved GLP-1 secretion in vivo via an intracolonic dose coadministered with glucose challenge in a canine model. These novel TGR5 receptor agonists are potentially useful therapeutics for metabolic disorders such as type II diabetes and its associated complications.
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