Synthesis and antimicrobial activity of sulphamethoxazole-based ureas and imidazolidine-2,4,5-triones
作者:Martin Krátký、Jana Mandíková、František Trejtnar、Vladimír Buchta、Jiřina Stolaříková、Jarmila Vinšová
DOI:10.1515/chempap-2015-0109
日期:2015.1.1
resistance among bacterial and fungal pathogens justifies the development of novel antimicrobial agents. Thus, a series of novel sulphamethoxazole-based ureas and imidazolidine-2,4,5-triones have been designed and synthesised. The urea derivatives were obtained by the reaction of sulphamethoxazole and isocyanates, and their cyclisation to imidazolidine-2,4,5-triones was performed via oxalyl chloride. All
细菌和真菌病原体之间耐药性的发展证明了新型抗菌剂的发展。因此,已经设计并合成了一系列新型的基于磺胺甲恶唑的脲和咪唑烷-2,4,5-三酮。通过磺胺甲基异恶唑和异氰酸酯的反应获得脲衍生物,并通过草酰氯将它们环化成咪唑烷-2,4,5-三酮。在体外评估所有合成的衍生物,以确定其对革兰氏阳性和革兰氏阴性细菌,真菌,结核分枝杆菌和非典型分枝杆菌的活性及其细胞毒性。分枝杆菌的生长被抑制在4–1000 µM的范围内,结核分枝杆菌是最不敏感的菌株。4-(3-庚基脲基)-ñ - (5-甲基异恶唑-3-基)苯磺酰胺被确定为最有前途的化合物,因为它表现出对在最低抑菌浓度非典型分枝杆菌的活性最高,由4-μM,并具有可接受的毒性(选择性指数鸟分枝杆菌和中号堪萨斯州(分别高于16和62.5)。革兰氏阳性细菌(包括耐甲氧西林的金黄色葡萄球菌)的浓度从125 µM开始受到抑制,而所研究的衍生物几乎没有表现出抗真菌效力和对革兰氏阴性菌的活性。