- From off-to on-target: New BRAF-inhibitor-template-derived compounds selectively targeting mitogen activated protein kinase kinase 4 (MKK4)
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The mitogen-activated protein kinase (MAP) kinase 4 (MKK4) was found to be a major regulator of liver regeneration and could be a valuable drug target addressing liver related diseases by restoring its intrinsic regenerative capacity. We report on the synthesis and optimization of novel MKK4 inhibitors following a target-hopping strategy from the FDA-approved BRAFV600E inhibitor PLX4032 (8). Applying an iterative multi-parameter optimization process we carved out essential structural features yielding in compounds with a low nanomolar affinity for MKK4 and excellent selectivity profiles against the main off-targets MKK7 and JNK1, which, upon relevant inhibition, would totally abrogate the pro-regenerative effect of MKK4 inhibition, as well as against the off-targets MAP4K5, ZAK and BRAF with selectivity factors ranging from 40 to 430 for our best-balanced compounds 70 and 73.
- Kl?vekorn, Philip,Pfaffenrot, Bent,Juchum, Michael,Selig, Roland,Albrecht, Wolfgang,Zender, Lars,Laufer, Stefan A.
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supporting information
(2020/11/20)
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- N-Sulfonyl homoserine lactones as antagonists of bacterial quorum sensing
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A series of 11 N-sulfonyl homoserine lactones has been synthesised. Some of them were found to competitively inhibit the action of 3-oxohexanoyl-L- homoserine lactone, the natural inducer of bioluminescence in the bacterium Vibrio fischeri. Molecular modeling suggests a possible explanation based on the prevention of structural rearrangements necessary for the formation of the active dimer of LuxR.
- Castang, Sandra,Chantegrel, Bernard,Deshayes, Christian,Dolmazon, René,Gouet, Patrice,Haser, Richard,Reverchon, Sylvie,Nasser, William,Hugouvieux-Cotte-Pattat, Nicole,Doutheau, Alain
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p. 5145 - 5149
(2007/10/03)
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- A new, mild preparation of sulfonyl chlorides
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A new method was developed for the preparation of sulfonyl chlorides from sulfonic acids under neutral conditions using 2,4,6-trichloro-1,3,5-triazine as chlorinating agent.
- Blotny, Grzegorz
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p. 1499 - 1501
(2007/10/03)
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- COMPOUNDS AND METHODS FOR CONTROLLING BACTERIAL VIRULENCE
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Novel sulfonated homoserine lactones formula I have been found to act ac quorum sensing inhibitors. As such, they may be useful in the treatment of bacterial infections.
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- Endothelin antagonists
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A compound of the formula (I): or a pharmaceutically acceptable salt thereof is disclosed, as well as processes for and intermediates in the preparation thereof, and a method of antagonizing endothelin.
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- N-sulfonyl-N-dihalophenylimidazolidinediones
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3-(3' -Dihalophenyl)-1-sulfonylimidazolidine-2,4-5'-diones of the formula: STR1 wherein X is a halogen atom, R1 is a C1 -C12 alkyl group, a C2 -C4 alkenyl group or a halogenated C1 -C4 alkyl group having 1 to 3 halogen atoms, and R2 and R3 are individually a hydrogen atom or a methyl group, which show high microbicidal activities against various fungi and bacteria without any material toxicity to mammals and which plants and can be produced by reacting the corresponding 1-unsubstituted compound with a sulfonyl halide.
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