Abstract
In the face of the clinical challenge posed by resistant bacteria, the present needs for novel classes of antibiotics are genuine. In silico docking and screening, followed by chemical synthesis of a library of quinazolinones, led to the discovery of (E)-3-(3-carboxyphenyl)-2-(4-cyanostyryl)quinazolin-4(3H)-one (compound 2) as an antibiotic effective in vivo against methicillin-resistant Staphylococcus aureus (MRSA). This antibiotic impairs cell-wall biosynthesis as documented by functional assays, showing binding of 2 to penicillin-binding protein (PBP) 2a. We document that the antibiotic also inhibits PBP1 of S. aureus, indicating a broad targeting of structurally similar PBPs by this antibiotic. This class of antibiotics holds promise in fighting MRSA infections.
Original language | English |
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Pages (from-to) | 1738-1741 |
Number of pages | 4 |
Journal | Journal of the American Chemical Society |
Volume | 137 |
Issue number | 5 |
DOIs | |
State | Published - Feb 11 2015 |
Bibliographical note
Publisher Copyright:© 2015 American Chemical Society.
Funding
Funders | Funder number |
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National Institutes of Health (NIH) | |
National Institute of General Medical Sciences | T32GM075762 |
ASJC Scopus subject areas
- Catalysis
- General Chemistry
- Biochemistry
- Colloid and Surface Chemistry