抗生素
肠球菌
耐万古霉素肠球菌
微生物学
吲哚试验
万古霉素
抗菌活性
生物
细菌
生物化学
金黄色葡萄球菌
遗传学
作者
Kerolos Ashraf,Kaveh Yasrebi,Tobias Hertlein,Knut Ohlsen,Michael Lalk,Andreas Hilgeroth
出处
期刊:Molecules
[MDPI AG]
日期:2017-12-10
卷期号:22 (12): 2193-2193
被引量:2
标识
DOI:10.3390/molecules22122193
摘要
Enterococcus species cause increasing numbers of infections in hospitals. They contribute to the increasing mortality rates, mostly in patients with comorbidities, who suffer from severe diseases. Enterococcus resistances against most antibiotics have been described, including novel antibiotics. Therefore, there is an ongoing demand for novel types of antibiotics that may overcome bacterial resistances. We discovered a novel class of antibiotics resulting from a simple one-pot reaction of indole and o-phthaldialdehyde. Differently substituted indolyl benzocarbazoles were yielded. Both the indole substitution and the positioning at the molecular scaffold influence the antibacterial activity towards the various strains of Enterococcus species with the highest relevance to nosocomial infections. Structure-activity relationships are discussed, and the first lead compounds were identified as also being effective in the case of a vancomycin resistance.
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