Design, synthesis and evaluation of oxazaborine inhibitors of the NLRP3 inflammasome

Baldwin, Alex ORCID: https://orcid.org/0000-0002-7126-5220, Tapia, Victor S., Swanton, Tessa, White, Claire S., Beswick, James A., Brough, David and Freeman, Sally 2018. Design, synthesis and evaluation of oxazaborine inhibitors of the NLRP3 inflammasome. ChemMedChem 13 (4) , pp. 312-320. 10.1002/cmdc.201700731

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Abstract

The NLRP3 inflammasome is an important regulator of the sterile inflammatory response, and its activation by host‐derived sterile molecules leads to the intracellular activation of caspase‐1, processing of the pro‐inflammatory cytokines interleukin‐1β (IL‐1β)/IL‐18, and pyroptotic cell death. Inappropriate activation of NLRP3 drives a chronic inflammatory response and is implicated in several non‐communicable diseases, including gout, atherosclerosis, type II diabetes and Alzheimer's disease. In this study, we report the design, synthesis and biological evaluation of novel boron compounds (NBCs) as NLRP3 inflammasome inhibitors. Structure–activity relationships (SAR) show that 4‐fluoro substituents on the phenyl rings retain NLRP3 inhibitory activity, whereas more steric and lipophilic substituents diminish activity. Loss of inhibitory activity is also observed if the CCl3 group on the oxazaborine ring is replaced by a CF3 group. These findings provide additional understanding of the NBC series and will aid in the development of these NLRP3 inhibitors as tool compounds or therapeutic candidates for sterile inflammatory diseases.

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Biosciences
Publisher:	Wiley
ISSN:	1860-7179
Date of First Compliant Deposit:	13 April 2018
Date of Acceptance:	13 January 2018
Last Modified:	03 May 2023 22:07
URI:	https://orca.cardiff.ac.uk/id/eprint/110007

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