微波辐射促进了肟和酰氯的快速O,N-酰化-环脱水级联反应。合成了二十个含有杂环部分的新的2,4,5-三取代的恶唑衍生物,并对其抗增殖活性进行了评估。首次报道了这20种化合物,并通过元素分析,1 H NMR和13 C NMR光谱确定了它们的结构。生物测定测试表明,化合物2-(2-(2-氟苯基)-4-(2,3,4-三甲氧基苯基)恶唑-5-基硫基)苯并[d]噻唑(6af),2-(2-(吡啶) -3-基)-4-(2,3,4-三甲氧基苯基)恶唑-5-基硫基)嘧啶(6bg)和2-(2-(2-氟苯基)-4-(2,3,4-三甲氧基苯基)恶唑-5-基硫基)-5-甲基-1,3,4-噻二唑(6cf)在体外具有良好的抗增殖活性,与阳性对照(5-氟尿嘧啶)相当。
微波辐射促进了肟和酰氯的快速O,N-酰化-环脱水级联反应。合成了二十个含有杂环部分的新的2,4,5-三取代的恶唑衍生物,并对其抗增殖活性进行了评估。首次报道了这20种化合物,并通过元素分析,1 H NMR和13 C NMR光谱确定了它们的结构。生物测定测试表明,化合物2-(2-(2-氟苯基)-4-(2,3,4-三甲氧基苯基)恶唑-5-基硫基)苯并[d]噻唑(6af),2-(2-(吡啶) -3-基)-4-(2,3,4-三甲氧基苯基)恶唑-5-基硫基)嘧啶(6bg)和2-(2-(2-氟苯基)-4-(2,3,4-三甲氧基苯基)恶唑-5-基硫基)-5-甲基-1,3,4-噻二唑(6cf)在体外具有良好的抗增殖活性,与阳性对照(5-氟尿嘧啶)相当。
Indium-mediated facile preparation of 2-(heterocyclic thio)-1-(2,3,4-trimethoxyphenyl)ethanone in aqueous media
作者:Song Yang、Bao-An Song、Hua Zhang、De-Yu Hu、Lin-Hong Jin、Gang Liu
DOI:10.1002/jhet.5570410423
日期:2004.7
An environmentally benign and efficient process for the preparation of 1-(2,3,4-trimethoxyphenyl)-2-substituted heterocyclic thio ethanone derivatives was achieved by the reactions of mercapto compounds with 2-bromo-1-(2,3,4-trimethoxyphenyl)ethanone in water mediated by indium in very high yields. Antifungal activities of the compounds were examined and moderate activity was obtained.