52109-92-9

Upstream product

• 26214-65-3 furan-3-carbonyl chloride 
• 99-09-2 3-nitro-aniline 
• 488-93-7 3-Furoic acid 

Downstream Products

• 926212-87-5 N-(3-aminophenyl)-3-furamide 
• 1622869-12-8 C₁₈H₁₄N₂O₃ 

Relevant academic research and scientific papers

Potent and selective inhibitors of the TASK-1 potassium channel through chemical optimization of a bis-amide scaffold

TASK-1 is a two-pore domain potassium channel that is important to modulating cell excitability, most notably in the context of neuronal pathways. In order to leverage TASK-1 for therapeutic benefit, its physiological role needs better characterization; however, designing selective inhibitors that avoid the closely related TASK-3 channel has been challenging. In this study, a series of bis-amide derived compounds were found to demonstrate improved TASK-1 selectivity over TASK-3 compared to reported inhibitors. Optimization of a marginally selective hit led to analog 35 which displays a TASK-1 IC 50 = 16 nM with 62-fold selectivity over TASK-3 in an orthogonal electrophysiology assay.

Metabolically stable dibenzo[ b, e ]oxepin-11(6 H)-ones as highly selective p38 MAP kinase inhibitors: Optimizing anti-cytokine activity in human whole blood

Five series of metabolically stable disubstituted dibenzo[b,e]oxepin-11(6H) -ones were synthesized and tested in a p38α enzyme assay for their inhibition of tumor necrosis factor-α (TNF-α) release in human whole blood. Compared to the monosubstituted dibenzo[b,e]oxepin-11(6H)-one derivatives, it has been shown that the additional introduction of hydrophilic residues at position 9 leads to a substantial improvement of the inhibitory potency and metabolic stability. Using protein X-ray crystallography, the binding mode of the disubstituted dibenzoxepinones and the induction of a glyince flip in the hinge region were confirmed. The most potent compound of this series, 32e, shows an outstanding biological activity on isolated p38α, with an IC50 value of 1.6 nM, extraordinary selectivity (by a factor >1000, Kinase WholePanelProfiler), and low ATP competitiveness. The ability to inhibit the release of TNF-α from human whole blood was optimized down to an IC50 value of 125 nM. With the promising dibenzoxepinone inhibitor 3i, a pharmacokinetic study in mice was conducted.

Positional effect on the NMR spectroscopy of esters and amides of 2- and 3-furancarboxylic acids

Eleven derivatives of esters and amides of 2- and 3-furancarboxylic acids and their NMR spectra were obtained in DMSO-d6. The spectra of esters were also obtained in chloroform-d. The chemical shift values show good correlation with the Hammett