Catalytic Intermolecular Direct Arylation of Perfluorobenzenes
摘要:
Penta-, tetra-, tri-, and difluorobenzenes undergo direct arylation with a wide range of arylhalides in high yield. Inverse reactivity is observed compared to the common electrophilic aromatic substitution pathway since electron-deficient, C-H acidic arenes react preferentially. Computational studies indicate that C-H bond cleavage occurs via a concerted carbon-palladium and carbon-hydrogen bond cleaving event involving a carbonate or a bromide ligand. The reactions are rapid, require only a slight excess of the perfluoroarene reagent, and utilize commercially available, air-stable catalyst precursors.
乙醇钠在乙醇中与各种氟代芳烃,C 6 F 6-n H n,C 6 F 5-n H n NO 2,C 6 F 5 X(X = CF 3,C 6 F 5,COCH 3, CH 2溴),C 6氯6和mH 2 ç 6氯4进行了研究。观察到芳族卤素的部分取代。这些新产品已通过元素分析,NMR(H-1和F-19),红外光谱和质谱进行了表征。
[EN] COMPOSITIONS AND METHODS FOR THE TREATMENT OF HUMAN IMMUNODEFICIENCY VIRUS<br/>[FR] COMPOSITIONS ET MÉTHODES POUR LE TRAITEMENT DU VIRUS DE L'IMMUNODÉFICIENCE HUMAINE
申请人:CIDARA THERAPEUTICS INC
公开号:WO2022133281A1
公开(公告)日:2022-06-23
Compositions and methods for the treatment of viral infections include conjugates containing inhibitors of viral gp120 receptor (e.g., temsavir, BMS-818251, DMJ-ll-121, BNM-IV-147, or analogs thereof) linked to an Fc monomer, an Fc domain, and Fc-binding peptide, an albumin protein, or albumin- binding peptide. In particular, conjugates can be used in the treatment of viral infections (e.g., HIV infections).
The present invention provides novel compounds of formula (I) that are potent and selective non-covalent caspase inhibitors. These compounds nay be used for the treatment of inflammatory diseases.
Oligosaccharides comprising an aminooxy group and conjugates thereof
申请人:Genzyme Corporation
公开号:US10907142B2
公开(公告)日:2021-02-02
The invention provides methods for the synthesis of oligosaccharides comprising an aminooxy group. The invention further provides oligosaccharides comprising an aminooxy group, methods for coupling oligosaccharides comprising an aminooxy group to glycoproteins, and oligosaccharide-protein conjugates. Also provided are methods of treating a lysosomal storage disorder in a mammal by administration of an oligosaccharide-protein conjugate.
Reaction of polyfluorinated chalcones with guanidine
作者:E. A. Borodina、N. A. Orlova、Yu. V. Gatilov、O. I. Sal’nikova
DOI:10.1134/s1070428015120143
日期:2015.12
Reactions of polyfluorinated chalcones with guanidine in the presence of bases are accompanied by elimination of the polyfluorophenyl group. 3-(Pentafluorophenyl)-1-phenylprop-2-en-1-one and its derivatives reacted with guanidine under basic conditions to give 4-phenylpyrimidin-2-amine, polyfluorobenzenes, and Michael adducts, 3-(2-amino-4-phenylpyrimidin-5-yl)-3-(4-R-2,3,5,6-tetrafluorophenyl)-1-phenylpropan-1-ones. 1-(Pentafluorophenyl)-3-phenylprop-2-en-1-one and 1,3-bis(pentafluorophenyl)prop-2-en-1-one were converted into cinnamic acid derivatives whose reaction with guanidine afforded 2-amino-6-aryl-5,6-dihydropyrimidin-4(1H)-ones.