Convergent synthesis and cytotoxicity of novel trifluoromethyl-substituted (1 H -pyrazol-1-yl)(quinolin-4-yl) methanones
作者:Helio G. Bonacorso、Pablo A. Nogara、Fernanda D’A. Silva、Wilian C. Rosa、Carson W. Wiethan、Nilo Zanatta、Marcos A.P. Martins、João B.T. Rocha
DOI:10.1016/j.jfluchem.2016.08.012
日期:2016.10
classical dehydration reactions, which resulted in the corresponding (5-(trifluoromethyl)-1H-pyrazol-1-yl)(quinolin-4-yl)methanones (three examples) at yields of 69–82%. The subsequent cytotoxicity evaluation showed that compounds with aromatic groups at the 2-position of the quinoline and a methyl moiety at the 3-position of the pyrazole have significant cytotoxicity in human leukocytes at high concentrations
从靛红和烷基开始聚合合成一系列16种新的多取代的(5-羟基-5-(三氟甲基)-4,5-二氢-1 H-吡唑-1-基)(喹啉-4-基)甲酮描述了(芳基/杂芳基)酮。通过涉及4-烷基(芳基/杂芳基)-4-甲氧基-1,1,1-三氟丁-3-烯-2-酮的[3 + 2]环缩合反应,二杂芳基甲烷酮的收率高达95%。 (通过两步反应)和2-烷基(芳基/杂芳基)-4-碳酰肼(通过三步反应)。随后,通过经典的脱水反应从相应的5-羟基-2-吡唑啉部分获得了代表性的脱水杂环衍生物,得到了相应的(5-(三氟甲基)-1 H-吡唑-1-基)(喹啉-4-基)甲酮(三个实例),产率为69-82%。随后的细胞毒性评估表明,在高浓度(200μM)的人白细胞中,在喹啉2位具有芳香基团且在吡唑3位具有甲基部分的化合物具有明显的细胞毒性。