نتایج جستجو برای: 4 aryl 26 dipyren 1 ylpyridines
تعداد نتایج: 3451812 فیلتر نتایج به سال:
N-Aryl-S,S-dimethylsulfimides 3(Ar = 4-NO(2)C(6)H(4)), 4 (Ar = Ph) and 5 (Ar = 4-Tol)react with Appel salt 1 to give the corresponding N-aryl-(4-chloro-5H-1,2,3-dithiazolylidene)benzenamines 8 (Ar = 4-NO(2)C(6)H(4)), 9 (Ar = Ph) and 10 (Ar = 4-Tol) in 84, 94 and 87% yields, respectively. The reaction proceeds in the absence of base and a proposed reaction mechanism is given.
To find new and better antivascular agents for cancer therapy, a series of combretastatin A4 (CA4) analogs were prepared from 1,3-diaryl-2-nitroprop-1-enes (6-12) obtained in a two-step synthesis from appropriate arylaldehydes and 2-aryl-1-nitroethanes (4 or 5). Treatment of these 1,3-diaryl-2-nitroprop-1-enes 6-12 by sodium azide in DMSO yielded the targeted compounds. The synthesized 1,2,3-tr...
A series of novel 4-substituted-N-(phenylcarbamoyl)-3-pyridinesulfonamides 11-27 have been synthesized by the reaction of 4-substituted pyridine-3-sulfonamides 2-10 with the appropriate aryl isocyanates in presence of potassium carbonate. The in vitro anticancer activity of compounds 11, 12, 14-21 and 24-26 was evaluated at the U.S. National Cancer Institute and in light of the results, some st...
The transformations of organic molecules with F-TEDA-BF(4) (1) were investigated in the hydrophilic ionic liquid (IL) 1-butyl-3-methyl-imidazolium tetrafluoroborate ([bmim][BF(4)], 2) and the hydrophobic IL 1-butyl-3-methyl-imidazolium hexafluorophosphate ([bmim][PF(6)], 3). The range of substrates included alkyl substituted phenols 4a-c, 9, 13, 1,1-diphenylethene (15), alkyl aryl ketones 19-22...
Title Page 1 2 Activation of aryl hydrocarbon receptor mediates suppression of hypoxia inducible 3 factor-dependent erythropoietin expression by indoxyl sulfate 4 5 Hirobumi Asai, Junya Hirata, Ayumi Hirano, Kazuya Hirai, Sayaka Seki and Mie 6 Watanabe-Akanuma 7 8 Safety Research Center, Kureha Corporation, 3-26-2 Hyakunin-cho, Shinjuku-ku, 9 Tokyo 169-8503, Japan 10 11 12 Running Head: Indoxyl...
Diastereoselective syntheses of 3-aryl-(S/R)-6-methyl-1-[(S/R)-1-phenylethyl)]-2-thioxotetrahydro pyrimidin-4(1H)-ones were achieved in good yields by the condensation of aryl isothiocyanates with ethyl 3-(1-phenylethylamino)butanoate in a one-pot reaction. Benzylation of these substrates illustrated that the orientations of the exocylic and endocylic groups determine the stereochemical outcome...
objective(s) inhibitors of p38 map kinase are considered as suitable target in the treatment of inflammatory diseases such as rheumatoid arthritis and bowel inflammatory diseases. the development of 5-alkylthio-1-aryl-2-(4-pyridinyl) triazoles as inhibitors of p38 map kinase is described. these are analogues of 4- pyridinyl imidazole p38 map kinase inhibitor reported by merck research laborator...
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