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以无水乙醇为溶剂合成了4个吡啶类烯胺化合物,该方法的反应条件温和、产率高,虽然同时生成Z/E两种构型的产物,但很易通过柱层析分离。用MTT法测定了所得烯胺对微生物的抑制活性,结果表明这些烯胺对细菌特别是对大肠杆菌(MIC50=1.56μg/mL)有较好的抑制活性,而对真菌则表现较弱抑制活性。利用AutoDock 4.0程序研究了标题化合物与大肠杆菌的β-酮酰-ACP缩合酶Ⅲ(FabH)的分子对接情况,(E)-2-(4-氯苯基)-3-(吡啶-2-氨基)丙烯酸乙酯较低的对接自由能与其具有较低的MIC50一致。
Four pyridine enamine compounds were synthesized using anhydrous ethanol as solvent. The reaction conditions of the method are mild and the yield is high. Although the product of the two configurations of Z / E is formed at the same time, it can be easily separated by column chromatography. The inhibitory activity of the resulting enamines on the microorganisms was measured by the MTT method. The results showed that these enamines exhibited better inhibitory activity against bacteria, especially against E. coli (MIC50 = 1.56 μg / mL), and less inhibitory activity against fungi . The molecular docking of the title compound with E. coli β-ketoacyl-ACP synthase III (FabH) was investigated using the AutoDock 4.0 program, (E) -2- (4- chlorophenyl) -3- Amino) acrylate lower docking free energy as it has a lower MIC50.