- Discovery and Optimization of Novel SUCNR1 Inhibitors: Design of Zwitterionic Derivatives with a Salt Bridge for the Improvement of Oral Exposure
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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.
- Velcicky, Juraj,Wilcken, Rainer,Cotesta, Simona,Janser, Philipp,Schlapbach, Achim,Wagner, Trixie,Piechon, Philippe,Villard, Frederic,Bouhelal, Rochdi,Piller, Fabian,Harlfinger, Stephanie,Stringer, Rowan,Fehlmann, Dominique,Kaupmann, Klemens,Littlewood-Evans, Amanda,Haffke, Matthias,Gommermann, Nina
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p. 9856 - 9875
(2020/10/05)
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- SUBSTITUTED ISOXAZOLINE DERIVATIVES
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This invention recites substituted isoxazoline derivatives of Formula (1) or a veterinarily acceptable salt thereof, with parasiticidal activity, compositions thereof, and their use as a parasiticide in animals or birds where R1a, R1b/sup
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Page/Page column 20
(2011/10/19)
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- CARBOXYLIC ACID DERIVATIVE AND MEDICINE COMPRISING SALT OR ESTER OF THE SAME
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The present invention provides novel carboxylic acid derivatives useful as an insulin sensitizer, a salt thereof or a hydrate of them, and a medicament comprising the derivative as the active ingredient. Specifically, it provides a carboxylic acid derivative represented by the following formula: (wherein L represents a single bond, or a C1 to C6 alkylene group, a C2 to C6 alkenylene group or a C2 to C6 alkynylene group, each of which may have one or more substituent groups; M represents a single bond, or a C1 to C6 alkylene group, a C2 to C6 alkenylene group or a C2 to C6 alkynylene group, each of which may have one or more substituent groups; T represents a single bond, or a C1 to C3 alkylene group, a C2 to C3 alkenylene group or a C2 to C3 alkynylene group, each of which may have one or more substituent groups; W represents a carboxyl group; X represents a single bond, an oxygen atom, or a group represented by the various substituent groups including -NRX1CQ1O- (wherein Q1 represents an oxygen atom or a sulfur atom; RX1 represents a hydrogen atom, a cyano group, a formyl group, or various groups including a C1 to C6 alkyl group and a C1 to C6 hydroxyalkyl group, each of which may have one or more substituent groups) , ONRX1CQ1-, -NRX1CQ1-, -CQ1NRX1-, -NRX1aCQ1NRX1b-, -Q2SO2- and -SO2Q2-; Y represents a 5 to 14-membered aromatic group which may have one or more substituent groups and one or more hetero atoms, or a C3 to C7 alicyclic hydrocarbon group; and the rings Z and U may be the same as or different from each other and each represents a 5 to 14-membered aromatic group which may have 1 to 4 substituent groups and one or more hetero atoms, and the ring may be partially saturated.), a salt thereof, an ester thereof or a hydrate of them.
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