作　　者： ; ; ; ; (欧晓明）;

机构地区： 湖南大学化学化工学院

出　　处： 《高等学校化学学报》 2008年第4期739-744,共6页

摘　　要： 以4-乙酰氨基苯甲酸乙酯为原料设计合成了14种2-甲基-1-(4-芳基噻唑-2-基)-苯并咪唑-6-甲酸乙酯新化合物.化合物结构经质谱、1H NMR、红外光谱和元素分析等确证,并用单晶X射线衍射仪测定了化合物5a的晶体结构.生物活性实验结果表明,化合物5c(500mg/L)对小麦白粉病菌抑制率达到95%;化合物5e对辣椒疫霉病菌(25mg/L)的抑制率为61.9%,对油菜菌核病菌(500mg/L)抑制率高达97.2%;化合物5k(25mg/L)对小麦赤霉病菌抑制率为55.1%. Compounds containing thiazole or benzoimidazole ring system are found to exhibit a wide spectrum of biological activities. Fourteen new ethyl 2-methyl-i-（4-arylthiazol-2-yl）-benzoimidazole-6-carboxylates were synthesized from ethyl 4-acetamidobenzoate with four steps. Their structures were clearly established by MS, 1H NMR spectra and elemental analysis. The crystal structure of compound 5a was determined by X-ray diffraction analysis. The preliminary bioassays indicate that compound 5c exhibited 95% inhibition rate against E. graminis at 500 mg/L; compound 5e exhibited 61.9% inhibition rate against P. capsici at 25 mg/L. compound 5e exhibited 97.2% inhibition rate against S. sclerotiorum at 500 rag/L, and compound 5k exhibited 55.1% inhibition rate against G. zeae.

关 键 词： 甲基 芳基噻唑 基 苯并咪唑 甲酸乙酯 生物活性 晶体结构

领　　域： [理学] [理学]