The nucleophilic aromatic substitution reaction between electron-deficient aryl fluorides and terminal alkynes is shown to be efficiently promoted by sodium bis(trimethylsilyl)amide as a base. Moderate to excellent yields of 2-ethynylnitrobenzene products can be obtained under mild conditions.
Bis(5-methyl-2-[(2-nitrophenyl)amino]-3-thiophenecarbonitrilyl)acetylene, a derivative of the highly polymorphic compound 5-methyl-2-[(2-nitrophenyl)amino]-3-thiophenecarbonitrile (ROY) that possesses two chromophores electronically coupled through a triple bond, was found to be trimorphic. Structural data for two of these forms indicates that symmetry is maintained in one structure
Journal of medicinal chemistry, 46(26), 5651-5662 (2003-12-12)
We wish to report the synthesis and structure-activity relationship (SAR) of a series of 4-aminobenzophenones, as a novel compound class with high antiinflammatory activity. Our initial lead, (4-[(2-aminophenyl)amino]phenyl)(phenyl)methanone (3), was systematically optimized and resulted in compounds that potently inhibited the
Nuclear medicine and biology, 40(5), 705-709 (2013-05-28)
As a first trial for in vivo imaging of β-secretase (BACE1) in Alzheimer's disease brain, we applied a novel non-peptidergic small molecule which has high affinity to the enzyme, naphthalene-1-carboxylic acid (3'-chloro-4'-fluoro-4-piperazin-1-yl-biphenyl-3-yl)amide (NCFB) into positron emission tomography (PET) probe. In
We have identified two related series of dibenzazepine and dibenzoxazepine sodium channel blockers, which showed good potency on Nav1.7 in FLIPR-based and electrophysiological functional assays.
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.