Synthesis and antimicrobial activity of small cationic amphipathic aminobenzamide marine natural product mimics and evaluation of relevance against clinical isolates including ESBL-CARBA producing multi-resistant bacteria

A library of small aminobenzamide derivatives was synthesised to explore a cationic amphipathic motif found in marine natural antimicrobials. The most potent compound E23 displayed minimal inhibitory concentrations (MICs) of 0.5-2 mu g/ml against several Gram-positive bacterial strains, including me...

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Published inBioorganic & medicinal chemistry Vol. 24; no. 22; pp. 5884 - 5894
Main Authors Igumnova, Elizaveta M., Mishchenko, Ekaterina, Haug, Tor, Blencke, Hans-Matti, Sollid, Johanna U. Ericson, Fredheim, Elizabeth G. Aarag, Lauksund, Silje, Stensvag, Klara, Strom, Morten B.
Format Journal Article
LanguageEnglish
Published OXFORD Elsevier 15.11.2016
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Abstract A library of small aminobenzamide derivatives was synthesised to explore a cationic amphipathic motif found in marine natural antimicrobials. The most potent compound E23 displayed minimal inhibitory concentrations (MICs) of 0.5-2 mu g/ml against several Gram-positive bacterial strains, including methicillin resistant Staphylococcus epidermidis (MRSE). E23 was also potent against 275 clinical isolates including Staphylococcus aureus, Enterococcus spp., Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumoniae, as well as methicillin-resistant S. aureus (MRSA), vancomycin-resistant enterococci (VRE), and ESBL-CARBA producing multi-resistant Gram-negative bacteria. The study demonstrates how structural motifs found in marine natural antimicrobials can be a valuable source for making novel antimicrobial lead-compounds. (C) 2016 Elsevier Ltd. All rights reserved.
AbstractList A library of small aminobenzamide derivatives was synthesised to explore a cationic amphipathic motif found in marine natural antimicrobials. The most potent compound E23 displayed minimal inhibitory concentrations (MICs) of 0.5-2 mu g/ml against several Gram-positive bacterial strains, including methicillin resistant Staphylococcus epidermidis (MRSE). E23 was also potent against 275 clinical isolates including Staphylococcus aureus, Enterococcus spp., Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumoniae, as well as methicillin-resistant S. aureus (MRSA), vancomycin-resistant enterococci (VRE), and ESBL-CARBA producing multi-resistant Gram-negative bacteria. The study demonstrates how structural motifs found in marine natural antimicrobials can be a valuable source for making novel antimicrobial lead-compounds. (C) 2016 Elsevier Ltd. All rights reserved.
A library of small aminobenzamide derivatives was synthesised to explore a cationic amphipathic motif found in marine natural antimicrobials. The most potent compound E23 displayed minimal inhibitory concentrations (MICs) of 0.5-2μg/ml against several Gram-positive bacterial strains, including methicillin resistant Staphylococcus epidermidis (MRSE).E23 was also potent against 275 clinical isolates including Staphylococcus aureus, Enterococcus spp., Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumoniae, as well as methicillin-resistant S. aureus (MRSA), vancomycin-resistant enterococci (VRE), and ESBL-CARBA producing multi-resistant Gram-negative bacteria. The study demonstrates how structural motifs found in marine natural antimicrobials can be a valuable source for making novel antimicrobial lead-compounds.
Author Haug, Tor
Strom, Morten B.
Lauksund, Silje
Mishchenko, Ekaterina
Blencke, Hans-Matti
Sollid, Johanna U. Ericson
Igumnova, Elizaveta M.
Fredheim, Elizabeth G. Aarag
Stensvag, Klara
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Issue 22
Keywords Antimicrobial
Multi-resistant bacteria
ANTIBACTERIAL PEPTIDES
ESBL-CARBA
SUSCEPTIBILITY
Antibacterial
Aminobenzamides
Marine natural product mimics
BETA(2,2)-AMINO ACID
STAPHYLOCOCCUS
SPONGE
Peptidomimetics
PHARMACOPHORE
ALKALOIDS
ESBL–CARBA
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Snippet A library of small aminobenzamide derivatives was synthesised to explore a cationic amphipathic motif found in marine natural antimicrobials. The most potent...
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SubjectTerms Anti-Bacterial Agents - chemical synthesis
Anti-Bacterial Agents - chemistry
Anti-Bacterial Agents - pharmacology
Antimicrobial Cationic Peptides - chemical synthesis
Antimicrobial Cationic Peptides - chemistry
Antimicrobial Cationic Peptides - pharmacology
Benzamides - chemical synthesis
Benzamides - chemistry
Benzamides - pharmacology
Biochemistry & Molecular Biology
Biological Products - chemical synthesis
Biological Products - chemistry
Biological Products - pharmacology
Chemistry
Chemistry, Medicinal
Chemistry, Organic
Dose-Response Relationship, Drug
Drug Resistance, Multiple, Bacterial - drug effects
Gram-Negative Bacteria - drug effects
Gram-Positive Bacteria - drug effects
Life Sciences & Biomedicine
Microbial Sensitivity Tests
Molecular Structure
Pharmacology & Pharmacy
Physical Sciences
Science & Technology
Structure-Activity Relationship
Title Synthesis and antimicrobial activity of small cationic amphipathic aminobenzamide marine natural product mimics and evaluation of relevance against clinical isolates including ESBL-CARBA producing multi-resistant bacteria
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