Work

Synthesis and Biological Evaluation of Pyrroloindolines as Positive Allosteric Modulators of the α1β2γ2 GABAA Receptor

Year: 2020

Type: article

Abstract: γ-Aminobutyric acid type A (GABA A ) receptors are key mediators of central inhibitory neurotransmission and have been implicated in several disorders of the central nervous system. Some positive allosteric modulators (PAMs) of this receptor provide great therapeutic benefits to patients. However, adverse effects remain a challenge. Selective targeting of GABA A receptors could mitigate this problem. Here, we describe the synthesis and functional evaluation of a novel series of pyrroloindolines that display significant modulation of the GABA A receptor, acting as PAMs. We found that halogen incorporation at the C5 position greatly increased the PAM potency relative to the parent ligand, while substitutions at other positions generally decreased potency. Mutagenesis studies suggest that the binding site lies at the top of the transmembrane domain.

Source: ACS Medicinal Chemistry Letters

DOI: 10.1021/acsmedchemlett.0c00340

Authors: Annet E. M. Blom, Justin Y. Su, Lindsay M. Repka, Sarah E. Reisman, Dennis A. Dougherty

Institution: California Institute of Technology

Language: English

Topic: Neuroscience and Neuropharmacology Research

Subfield: Cellular and Molecular Neuroscience

Field: Neuroscience

Domain: Life Sciences

SDG: Good health and well-being

Open Access status: green

Funder: National Institute of General Medical Sciences