33358-35-9Relevant academic research and scientific papers
Aerobic copper-catalyzed decarboxylative thiolation
Li, Minghao,Hoover, Jessica M.
supporting information, p. 8733 - 8736 (2016/07/15)
Copper-catalyzed decarboxylative thiolation using molecular oxygen as the sole oxidant was developed. A variety of aromatic carboxylic acids including 2-nitrobenzoic acids, pentafluorobenzoic acid and several heteroaromatic carboxylic acids undergo efficient thiolation to furnish the aryl sulfides in moderate to excellent yields.
Potassium tert-butoxide-mediated synthesis of unsymmetrical diaryl ethers, sulfides and selenides from aryl bromides
Kumar, Amit,Bhakuni, Bhagat Singh,Prasad, Ch. Durga,Kumar, Shailesh,Kumar, Sangit
, p. 5383 - 5392 (2013/07/04)
Potassium tert-butoxide mediated carbon-chalcogen C-E (E=O, S and Se) coupling reaction has been studied from aryl bromide and phenol/aryl disulfide/diselenide substrates. A series of unsymmetrical diaryl chalcogenides were accessed from aryl bromide and diaryl dichalcogenide precursors by using 2.5 equiv of potassium tert-butoxide in DMSO at 80 C. Unsymmetrical diaryl ethers were also obtained by using phenol precursors at 40-45 C. Aryl bromides with methyl, trifluoromethyl, methoxy and nitro substituents showed compatibility in the carbon-chalcogen bond forming reaction. 4-Methoxy, methyl, trifluoromethyl substituted bromobenzene substrates gave two regioisomers: 3-substituted and 4-substituted diaryl chalcogenides when reacted with phenols/diaryl disulfides/diselenides. Formation of two regioisomeric diaryl chalcogenides in the reaction mixture suggests that potassium tert-butoxide reacts with bromobenzene to produce benzyne intermediate, which subsequently reacts with diaryl dichalcogenides and finally give a regioisomeric mixture of 4-substituted and 3-substituted diaryl chalcogenides.
BENZOFURAN-2-SULFONAMIDES DERIVATIVES AS CHEMOKINE RECEPTOR MODULATORS
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Paragraph 0395; 0396; 0397, (2013/09/12)
The present invention relates to novel benzofuran-2-sulfonamide derivatives, processes for preparing them, pharmaceutical compositions containing them and their use as pharmaceuticals as modulators of chemokine receptors.
8-hydroxyquinolin-N-oxide-promoted copper-catalyzed C-S cross-coupling of thiols with aryl iodides
Su, Kun,Qiu, Yatao,Yao, Yiwu,Zhang, Dayong,Jiang, Sheng
supporting information, p. 2853 - 2857 (2013/02/21)
8-Hydroxyquinolin-N-oxide was identified as a superior ligand for CuI-catalyzed C-S coupling reactions of aryl iodides with thiols to afford the corresponding thioethers in excellent yield. The method shows excellent chemoselectivity and high functional-group tolerance in both coupling partners. Copyright
Novel Hepatitis C virus replicon inhibitors: Synthesis and structure-activity relationships of fused pyrimidine derivatives
Chris Krueger,Madigan, Darold L.,Beno, David W.,Betebenner, David A.,Carrick, Robert,Green, Brian E.,He, Wenping,Liu, Dachun,Maring, Clarence J.,McDaniel, Keith F.,Mo, Hongmei,Molla, Akhteruzzaman,Motter, Christopher E.,Pilot-Matias, Tami J.,Tufano, Michael D.,Kempf, Dale J.
scheme or table, p. 2212 - 2215 (2012/04/18)
The synthesis of several pyrido[2,3-d]pyrimidine and pyrimido[4,5-d] pyrimidine analogs is described with one such analog possessing subnanomolar potency in both genotype 1a and 1b cell culture HCV replicon assays.
ANTI-VIRAL COMPOUNDS
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Page/Page column 56-57, (2008/12/08)
Compounds effective in inhibiting replication of Hepatitis C virus ( HCV ) or other viruses are disclosed. This invention is also directed to compositions comprising such compounds, coformulation or co-administration of such compounds with other anti-viral or therapeutic agents, processes and intermediates for the syntheses of such compounds, and methods of using such compounds for the treatment of HCV or other viral infections.
