Synthesis and antimicrobial evaluation of amino sugar-based naphthoquinones and isoquinoline-5,8-diones and their halogenated compounds
作者:Flaviana R.F. Dias、Juliana S. Novais、Talita A. do Nascimento Santos Devillart、Wanderson Amaral da Silva、Matheus O. Ferreira、Raquel de S. Loureiro、Vinícius R. Campos、Vitor F. Ferreira、Maria C.B.V. de Souza、Helena C. Castro、Anna C. Cunha
DOI:10.1016/j.ejmech.2018.06.050
日期:2018.8
concentration (MBC) values of the most active compounds were equal to MIC classifying them as bactericidal agents against Gram-negative bacteria. Sixteen compounds among eighteen carbohydrate-based naphthoquinones tested showed no hemolytic effects on health human erythrocytes whereas more susceptibility to hemolytic cleavage was observed when using non-glycoconjugate amino compounds. In silico Absorption
抗生素耐药性已成为一个严重的全球性公共卫生问题,近来很少发现抗生素并将其引入临床实践。因此,迫切需要开发具有新的作用机理的抗菌化合物,尤其是能够逃避已知抗性机理的抗菌化合物。在这项工作中,合成了衍生自异喹啉5,8-二酮和1,4-萘醌的两个系列的糖缀合物和非糖缀合物氨基化合物及其卤代衍生物,并评估了它们对革兰氏阳性菌(粪肠球菌ATCC 29212,金黄色葡萄球菌ATCC 25923,表皮葡萄球菌ATCC 12228,模拟葡萄球菌ATCC 27851)和革兰氏阴性细菌(大肠杆菌ATCC 25922,奇异变形杆菌ProCC 15290 ,肺炎克雷伯菌ATCC 4352和铜绿假单胞菌(ATCC 27853)具有临床重要性的菌株。这项研究表明,衍生自卤代萘醌的糖缀合物对革兰氏阴性菌株更具活性,据文献报道,这种菌株导致感染的治疗更加困难。在临床和实验室标准协会的MIC值(CLSI为0.08-256μg/