Journal
JOURNAL OF MEDICINAL CHEMISTRY
Volume 58, Issue 14, Pages 5486-5500Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jmedchem.5b00443
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Funding
- JNCASR
- Ramanujan Fellowship from Department of Science and Technology, Government of India [SR/S2/RJN-43/2009]
- Sheikh Saqr Laboratory (SSL), JNCASR
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Treating bacterial biofilms With conventional antibiotics is limited due to ineffectiveness of the drugs and higher propensity to develop bacterial resistance. Development of new classes of antibacterial therapeutics with alternative mechanisms of action has become imperative. Herein, we report the design, synthesis, and biological evaluations of novel membrane,active small molecules featuring two positive charges, four nonpeptidic,amide groups, and variable hydro, phobic/hydrophilic (amphiphilic) character. The biocides synthesized via a facile methodology not only displayed good antibacterial activity against wild-type bacteria but also showed high activity against various drug-resistant bacteria such as methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Enterococcus faecium (VRE), and beta-lactam-resistant Klebsiella pneumoniae. Further, these biocides not only inhibited the formation of biofilms but also disrupted the established S. aureus and E. coli biofilms. The membrane-active biocides hindered the propensity to develop bacterial resistance. Moreover; the biocides showed negligible toxicity against mammalian cells and thus bear potential to be used as therapeutic agents.
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