Concentration-Dependent Reactions of Deoxofluor with Arylglyoxal Hydrates: A New Route to Polyfluoro Ethers
摘要:
[GRAPHICS]In concentrated solutions (CH2Cl2) at 25 degreesC, arylglyoxal hydrates, ArCOCHO .H2O (Ar = 3,4-OCH2O-C6H3-, 4-MeO-C6H4-, 4-Me-C6H4-, 4-F-C6H4-, Ph-, S-CH=CH-CH=C-) (2a-f) with Deoxofluor gave fluorinated ethers, ArCF2CHFOCHFCF2Ar, (3a-f) in > 90% yields as meso/racemic mixtures (similar to1:1). Under very dilute conditions, mixtures of ArCF2CHO (major) (4a-f) and ArCF2CF2H (6a-f) (minor) were obtained. The structures of 3b (racemic) and 4a (meso) have been confirmed by single-crystal X-ray analysis.
Design, Synthesis and Biological Evaluation of 1-Phenyl-2-(phenylamino) Ethanone Derivatives as Novel MCR-1 Inhibitors
作者:Xiu-juan Lan、Hai-tao Yan、Feng Lin、Shi Hou、Chen-chen Li、Guang-shu Wang、Wei Sun、Jun-hai Xiao、Song Li
DOI:10.3390/molecules24152719
日期:——
Polymyxins are considered to be the last-line antibiotics that are used to treat infections caused by multidrug-resistant (MDR) gram-negative bacteria; however, the plasmid-mediated transferable colistin resistance gene (mcr-1) has rendered polymyxins ineffective. Therefore, the protein encoded by mcr-1, MCR-1, could be a target for structure-based design of inhibitors to tackle polymyxins resistance
The invention described herein relates to certain quinoxaline-5-carboxamide derivatives of formula (I)
which are antagonists of HIF prolyl hydroxylases and are useful for treating diseases benefiting from the inhibition of this enzyme, anemia being one example.
iodine-mediated oxidative annulation of aryl acetylenes-arylethenes-aromatic ketones with 1,2-diamines for the synthesis of pyrazines and regioselective synthesis of quinoxalines is presented. A multipathway coupled domino approach has been developed for the one-pot synthesis of 1,4-diazines with high functional group compatibility.
Synthesis of a new series of multifunctional dialkyl 2-(1-(alkylamino)-1,3-dioxo-3-phenylpropan-2-yl)malonates as low molecular weight supramolecular organogelators using five-component reaction
作者:Faride Googol、Abbas Rahmati
DOI:10.1016/j.tet.2017.11.040
日期:2018.1
Dialkyl 2-(1-(alkylamino)-1,3-dioxo-3-phenylpropan-2-yl)malonates have been synthesized using a one-pot, pseudo five-component condensation reaction of isocyanide, Meldrum's acid, phenylglyoxal and two alcohol molecules in CH2Cl2 at ambient temperature. It was found that these structures could be used as low molecular weight supramolecular organogelators. The gelation behaviors of these organic gelators