Title |
Synthesis and Kinetic Testing of Tetrahydropyrimidine‐2‐thione and Pyrrole Derivatives as Inhibitors of the Metallo‐β‐lactamase from Klebsiella pneumonia and Pseudomonas aeruginosa
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Published in |
Chemical Biology & Drug Design, July 2012
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DOI | 10.1111/j.1747-0285.2012.01440.x |
Pubmed ID | |
Authors |
Waleed M. Hussein, Samar S. Fatahala, Zainab M. Mohamed, Ross P. McGeary, Gerhard Schenk, David L. Ollis, Mosaad S. Mohamed |
Abstract |
Metallo-β-lactamases (MBLs), produced by an increasing number of bacterial pathogens, facilitate the hydrolysis of many commonly used β-lactam antibiotics. There are no clinically useful antagonists against MBLs. Two sets of tetrahydropyrimidine-2-thione and pyrrole derivatives were synthesized and assayed for their inhibitory effects on the catalytic activity of the IMP-1 MBL from Pseudomonas aeruginosa and Klebsiella pneumoniae. Nine compounds tested (1a, 3b, 5c, 6b, 7a, 8a, 11c, 13a, and 16a) showed micromolar inhibition constants (K(i) values range from ∼20-80 μM). Compounds 1c, 2b, and 15a showed only weak inhibition. In silico docking was employed to investigate the binding mode of each enantiomer of the strongest inhibitor, 5c (K(i) = 19 ± 9 μM), as well as 7a (K(i) =21 ± 10 μM), the strongest inhibitor of the pyrrole series, in the active site of IMP-1. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Unknown | 1 | 100% |
Demographic breakdown
Type | Count | As % |
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Science communicators (journalists, bloggers, editors) | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 32 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 7 | 22% |
Student > Bachelor | 4 | 13% |
Lecturer > Senior Lecturer | 4 | 13% |
Researcher | 4 | 13% |
Student > Master | 3 | 9% |
Other | 6 | 19% |
Unknown | 4 | 13% |
Readers by discipline | Count | As % |
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Chemistry | 8 | 25% |
Biochemistry, Genetics and Molecular Biology | 4 | 13% |
Immunology and Microbiology | 4 | 13% |
Agricultural and Biological Sciences | 3 | 9% |
Pharmacology, Toxicology and Pharmaceutical Science | 2 | 6% |
Other | 5 | 16% |
Unknown | 6 | 19% |