2,6-Disubstituted imidazo[2,1-b][1,3,4]thiadiazole derivatives as potent staphylococcal biofilm inhibitors
作者:Stella Cascioferro、Barbara Parrino、Giovanna Li Petri、Maria Grazia Cusimano、Domenico Schillaci、Veronica Di Sarno、Simona Musella、Elisa Giovannetti、Girolamo Cirrincione、Patrizia Diana
DOI:10.1016/j.ejmech.2019.02.007
日期:2019.4
25922. Many of these new compounds, were able to inhibit biofilm formation of the tested staphylococcal strains showing BIC50 lower than 10 μg/ml. In particular, derivatives 9c and 9h showed remarkable anti-biofilm activity against S. aureus ATCC 25923 with BIC50 values of 0.5 and 0.8 μg/ml, respectively, whereas compound 9aa was the most potent against S. aureus ATCC 6538, with a BIC50 of 0.3 μg/ml. Remarkably
高效合成了36种新型的2-(6-苯基咪唑并[2,-1- b ] [1,3,4]噻二唑-2-基)-1 H-吲哚并评估了它们的抗生物膜特性。革兰氏阳性细菌参考菌株金黄色葡萄球菌ATCC 25923,金黄色葡萄球菌ATCC 6538和表皮葡萄球菌ATCC 12228,以及革兰氏阴性铜绿假单胞菌ATCC 15442和大肠杆菌ATCC25922。这些新化合物中的许多能够抑制生物膜的形成。的测试葡萄球菌菌株显示BIC 50低于10μg/ ml。尤其是导数9c和9h分别显示出对金黄色葡萄球菌ATCC 25923的显着抗生物膜活性,BIC 50值分别为0.5和0.8μg / ml,而化合物9aa对金黄色葡萄球菌ATCC 6538最有效,BIC 50为0.3μg/ ml。值得注意的是,这些化合物在生物膜形成的早期阶段显示出作用,而不会影响相同菌株的成熟生物膜和浮游生物的生存能力。它们在不干扰细菌以自由生命形