4-phenylpyridin-2-one derivatives

a novel class of positive allosteric modulator of the M1 muscarinic acetylcholine receptor

Shailesh N. Mistry, Manuela Jorg, Herman Lim, Natalie B. Vinh, Patrick M. Sexton, Ben Capuano, Arthur Christopoulos, J. Robert Lane, Peter J. Scammells

Research output: Contribution to journalArticleResearchpeer-review

20 Citations (Scopus)

Abstract

Positive allosteric modulators (PAMs) of the M1 muscarinic acetylcholine receptor (M1 mAChR) are a promising strategy for the treatment of the cognitive deficits associated with diseases including Alzheimer's and schizophrenia. Herein, we report the design, synthesis, and characterization of a novel family of M1 mAChR PAMs. The most active compounds of the 4-phenylpyridin-2-one series exhibited comparable binding affinity to the reference compound, 1-(4-methoxybenzyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (BQCA) (1), but markedly improved positive cooperativity with acetylcholine, and retained exquisite selectivity for the M1 mAChR. Furthermore, our pharmacological characterization revealed ligands with a diverse range of activities, including modulators that displayed both high intrinsic efficacy and PAM activity, those that showed no detectable agonism but robust PAM activity and ligands that displayed robust allosteric agonism but little modulatory activity. Thus, the 4-phenylpyridin-2-one scaffold offers an attractive starting point for further lead optimization.

Original languageEnglish
Pages (from-to)388-409
Number of pages22
JournalJournal of Medicinal Chemistry
Volume59
Issue number1
DOIs
Publication statusPublished - 14 Jan 2016

Cite this

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title = "4-phenylpyridin-2-one derivatives: a novel class of positive allosteric modulator of the M1 muscarinic acetylcholine receptor",
abstract = "Positive allosteric modulators (PAMs) of the M1 muscarinic acetylcholine receptor (M1 mAChR) are a promising strategy for the treatment of the cognitive deficits associated with diseases including Alzheimer's and schizophrenia. Herein, we report the design, synthesis, and characterization of a novel family of M1 mAChR PAMs. The most active compounds of the 4-phenylpyridin-2-one series exhibited comparable binding affinity to the reference compound, 1-(4-methoxybenzyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (BQCA) (1), but markedly improved positive cooperativity with acetylcholine, and retained exquisite selectivity for the M1 mAChR. Furthermore, our pharmacological characterization revealed ligands with a diverse range of activities, including modulators that displayed both high intrinsic efficacy and PAM activity, those that showed no detectable agonism but robust PAM activity and ligands that displayed robust allosteric agonism but little modulatory activity. Thus, the 4-phenylpyridin-2-one scaffold offers an attractive starting point for further lead optimization.",
author = "Mistry, {Shailesh N.} and Manuela Jorg and Herman Lim and Vinh, {Natalie B.} and Sexton, {Patrick M.} and Ben Capuano and Arthur Christopoulos and Lane, {J. Robert} and Scammells, {Peter J.}",
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4-phenylpyridin-2-one derivatives : a novel class of positive allosteric modulator of the M1 muscarinic acetylcholine receptor. / Mistry, Shailesh N.; Jorg, Manuela; Lim, Herman; Vinh, Natalie B.; Sexton, Patrick M.; Capuano, Ben; Christopoulos, Arthur; Lane, J. Robert; Scammells, Peter J.

In: Journal of Medicinal Chemistry, Vol. 59, No. 1, 14.01.2016, p. 388-409.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Jorg, Manuela

AU - Lim, Herman

AU - Vinh, Natalie B.

AU - Sexton, Patrick M.

AU - Capuano, Ben

AU - Christopoulos, Arthur

AU - Lane, J. Robert

AU - Scammells, Peter J.

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