Design, synthesis, and antibacterial activity of novel Schiff base derivatives of quinazolin-4(3H)-one
作者:Xiang Wang、Juan Yin、Li Shi、Guoping Zhang、Baoan Song
DOI:10.1016/j.ejmech.2014.02.053
日期:2014.4
Novel imine derivatives of quinazolin-4(3H)-one were designed and synthesized by using aminoethyl moieties to increase the amine bridge of quinazolin-4(3H)-one amine and then introducing various aromatic aldehydes. The target compounds were characterized by proton nuclear magnetic resonance spectroscopy (1H NMR), carbon nuclear magnetic resonance spectroscopy (13C NMR), mass spectrometry (MS), infrared
设计并合成了一种新型的喹唑啉-4(3 H)-亚胺衍生物,其方法是使用氨乙基部分增加喹唑啉-4(3 H)-一胺的胺桥,然后引入各种芳香醛。目标化合物通过质子核磁共振波谱(1 H NMR),碳核磁共振波谱(13 C NMR),质谱(MS),红外光谱(IR),元素分析和X射线衍射晶体学进行表征。生物测定结果表明,某些化合物对烟草青枯病和番茄青枯病具有良好的抗菌性能。50%有效浓度(EC 50)化合物对烟草和番茄的细菌性枯萎病的范围分别为63.73μg/ mL至201.52μg/ mL和38.64μg/ mL至81.39μg/ mL,低于阳性对照的噻二唑铜(216.70和99.80μg/ mL)。毫升)。这些结果表明,含有4(3 H)-喹唑啉酮部分的新型席夫碱衍生物可以有效地控制烟草和番茄的枯萎病。