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Discovery And Optimization of Novel SUCNR1 Inhibitors: Design of Zwitterionic Derivatives with Salt-Bridge for Improvement of Oral Exposure

Velcicky, Juraj and Wilcken, Rainer and Cotesta, Simona and Janser, Philipp and Schlapbach, Achim and Piechon, Philippe and Villard, Frederic and Bouhelal, Rochdi and Piller, Fabian and Harlfinger, Stephanie and Stringer, Rowan and Fehlmann, Dominique and Kaupmann, Klemens and Littlewood-Evans, Amanda and Haffke, Matthias and Gommermann, Nina (2020) Discovery And Optimization of Novel SUCNR1 Inhibitors: Design of Zwitterionic Derivatives with Salt-Bridge for Improvement of Oral Exposure. Journal of Medicinal Chemistry, 63 (17). pp. 9856-9875. ISSN 0022-26231520-4804

Abstract

G-protein-coupled receptor SUCNR1 (succinate receptor 1 or GPR91) senses the citric cycle intermediate succinate and is implicated in various pathological conditions such as rheumatoid arthritis, liver fibrosis, or obesity. Here, we describe a novel SUCNR1 antagonist scaffold discovered by high-throughput screening. The poor permeation and absorption properties of the most potent compounds, which were zwitterionic in nature, could be improved by the formation of an internal salt bridge, which helped in shielding the two opposite charges and thus also the high polarity of zwitterions with separated charges. The designed compounds containing such a salt bridge reached high oral bioavailability and oral exposure. We believe that this principle could find a broad interest in the medicinal chemistry field as it can be useful not only for the modulation of properties in zwitterionic compounds but also in acidic or basic compounds with poor permeation.

Item Type: Article
Date Deposited: 24 Sep 2020 00:45
Last Modified: 24 Sep 2020 00:45
URI: https://oak.novartis.com/id/eprint/42931

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