ss-Amyloid (A ss) binding affinities and specificities for six bis-styrylbenzenes with multiple magnetically equivalent fluorine atoms in the form of a tetrafluorophenyl core or symmetrical trifluoromethyl and trifluoromethoxy groups were determined by means of fluorescence titrations with amyloid peptide A ss(1-40) and a novel in vitro fluorescence-based assay using APP/PS1 transgenic mouse brain sections. Bis-styrylbenzenes with a tetrafluorophenyl core had increased A ss binding affinities compared to their monofluorophenyl or phenyl counterparts. Bis-styrylbenzenes with carboxylic acid functional groups had lower A ss binding affinities than their neutral counterparts. Selected bis-styrylbenzenes were demonstrated to have good blood-brain barrier penetration capabilities. These data extend the SAR of bis-styrylbenzene A ss binding and provide direction for the development of a noninvasive probe for early detection of Alzheimer's disease using F-19 MRI.
4-unsubstituted quinoline-3-carboxylic acid ethyl esters via a domino process is described. The synthesis employs arylmethyl azides as the precursor which undergoes an acid-promoted rearrangement to give an N-aryl iminium ion. Following the addition with ethyl 3-ethoxyacrylate, intramolecular electrophilic aromaticsubstitution, elimination and subsequent oxidation, the quinoline products were obtained
Design, synthesis, biological evaluation and pharmacophore model analysis of novel tetrahydropyrrolo[3,4-c]pyrazol derivatives as potential TRKs inhibitors
indicate that compound 19m has a good drug safety. Partial ADME properties were evaluated in vitro and in vivo. Compound 19m exhibited a good AUC values and volume of distribution and low clearance in the pharmacokinetics experiment of rats. Finally, a pharmacophore model guided by experimental results is proposed. We hope this theoretical model can help researchers find type I TRK inhibitors more efficiently
Novel lapachone compounds and methods of use thereof
申请人:Ashwell Mark A.
公开号:US20090105166A1
公开(公告)日:2009-04-23
The present invention provides novel tricyclic spiro-oxathiine naphthoquinone derivatives, a synthetic method for making the derivatives, and the use of the derivatives to induce cell death and/or to inhibit proliferation of cancer or precancerous cells. The naphthoquinone derivatives of the present invention are related to the compound known as β-lapachone (3,4-dihydro-2,2-dimethyl-2H-naphtho(1,2-b)pyran-5,6-dione).
[EN] PYRROLOPYRIDINONE COMPOUNDS AND METHODS FOR TREATING HIV<br/>[FR] COMPOSÉS PYRROLOPYRIDINONES ET MÉTHODES DE TRAITEMENT DU VIH
申请人:GLAXOSMITHKLINE LLC
公开号:WO2013043553A1
公开(公告)日:2013-03-28
Provided are compounds and pharmaceutically acceptable salts thereof, their pharmaceutical compositions, their methods of preparation, and their use for treating viral infections mediated by a member of the retrovirus family of viruses such as the Human Immunodeficiency Virus (HIV).
Mechanistic Studies into the Oxidative Addition of Co(I) Complexes: Combining Electroanalytical Techniques with Parameterization
作者:Christopher Sandford、Lydia R. Fries、Tyler E. Ball、Shelley D. Minteer、Matthew S. Sigman
DOI:10.1021/jacs.9b10771
日期:2019.11.27
generated Co(I) complexes has been widely utilized as a strategy to produce carbon-centered radicals when cobalt is ligated by a polydentate ligand. Changing to a bidentate ligand provides the opportunity to access discrete Co(III)-C bonded complexes for alternative reactivity, but knowledge of how ligand and/or substrate structures affect catalytic steps is pivotal to reaction design and catalyst optimization