Synthesis and antimicrobial activity of thiosemicarbazides, s-triazoles and their Mannich bases bearing 3-chlorophenyl moiety
作者:Tomasz Plech、Monika Wujec、Agata Siwek、Urszula Kosikowska、Anna Malm
DOI:10.1016/j.ejmech.2010.11.010
日期:2011.1
efficient synthesis of some 1,4-disubstituted thiosemicarbazide derivatives is described. The reaction of 3-chlorobenzoic acid hydrazide with various aryl isothiocyanates gave thiosemicarbazide derivatives (1–11) in good yield. The cyclization of compounds (1–11) in the presence of 2% NaOH resulted in the formation of compounds (12–22) containing the 1,2,4-triazole ring. A series of new Mannich bases (23–33)
描述了一些1,4-二取代的硫代氨基脲衍生物的快速有效的合成。的3-氯苯甲酸酰肼与各种芳基异硫氰酸酯反应,得到氨基硫脲衍生物(1 - 11以良好的收率)。化合物(的环化1 - 11)在2%的NaOH的存在导致在化合物(形成12 - 22),其含有1,2,4-三唑环。还合成了与1,2,4-三唑结构有关的一系列新的曼尼希碱(23 – 33)。所有这些化合物均经过体外测试对有氧细菌参考菌株的抗菌活性-6革兰氏阳性和3革兰氏阴性; 还检查了12株金黄色葡萄球菌临床分离株。试图阐明取代基的性质/位置对所述化合物的抗菌活性的影响。