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N-Alkyl-2-Quinolonopyrones Demonstrate Antimicrobial Activity against ESKAPE Pathogens Including Staphylococcus aureus.


ABSTRACT: Antibiotic resistance has grown significantly in the last three decades, while research and development of new antibiotic classes has languished. Therefore, new chemical frameworks for the control of microbial behavior are urgently required. This study presents a novel suite of compounds, based on a tricyclic 4-hydroxy-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione core, with significant antibiotic activity against the ESKAPE pathogens Staphylococcus aureus and Enterococcus faecalis and the "accidental pathogen" Staphylococcus epidermidis. A potent analogue with an N-heptyl-9-t-Bu substitution pattern emerged as a hit with MIC levels ≤2 μg/mL across four strains of MRSA. In addition, the same compound proved highly potent against Enterococcus spp. (0.25 μg/mL).

SUBMITTER: Moynihan E 

PROVIDER: S-EPMC9377017 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature

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<i>N</i>-Alkyl-2-Quinolonopyrones Demonstrate Antimicrobial Activity against ESKAPE Pathogens Including <i>Staphylococcus aureus</i>.

Moynihan Eoin E   Mackey Katrina K   Blaskovich Mark A T MAT   Reen F Jerry FJ   McGlacken Gerard G  

ACS medicinal chemistry letters 20220719 8


Antibiotic resistance has grown significantly in the last three decades, while research and development of new antibiotic classes has languished. Therefore, new chemical frameworks for the control of microbial behavior are urgently required. This study presents a novel suite of compounds, based on a tricyclic 4-hydroxy-2<i>H</i>-pyrano[3,2-<i>c</i>]quinoline-2,5(6<i>H</i>)-dione core, with significant antibiotic activity against the ESKAPE pathogens <i>Staphylococcus aureus</i> and <i>Enterococc  ...[more]

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