Design, synthesis, and biological evaluation of chrysin derivatives as potential FabH inhibitors. 2017

Hong-Xia Li, and Zhong-Chang Wang, and Yu-Mei Qian, and Xiao-Qiang Yan, and Ya-Dong Lu, and Hai-Liang Zhu
School of Life and Food Engineering, Suzhou University, Suzhou Anhui, People's Republic of China.

New series of chrysin derivatives (4a-4t) were designed and synthesized by introducing different substituted piperazines at C-7 position. Their inhibitory effects on FabH were evaluated using two Gram-negative bacterial strains, Escherichia coli and Pseudomonas aeruginosa, and two Gram-positive bacterial strains, Bacillus subtilis and Staphylococcus aureus. To our delight, most of these compounds exhibited a dramatic increase in inhibitory potency, compared with the control positive drugs. Among them, compound 4s exhibited the most potent inhibitory activity with IC50 values of 5.78 ± 0.24 μm inhibiting E. coli FabH and potent antibacterial activity against S. aureus and E. coli with MIC of 1.25 ± 0.01, 1.15 ± 0.12 μg/mL, respectively, comparing to the control positive drugs penicillin G (7.56 ± 0.30 μm). Docking simulation was performed to position compound 4s into the FabH active site, and the result showed that compound 4s could bind well with the FabH as potent FabH inhibitor.

UI MeSH Term Description Entries
D008826 Microbial Sensitivity Tests Any tests that demonstrate the relative efficacy of different chemotherapeutic agents against specific microorganisms (i.e., bacteria, fungi, viruses). Bacterial Sensitivity Tests,Drug Sensitivity Assay, Microbial,Minimum Inhibitory Concentration,Antibacterial Susceptibility Breakpoint Determination,Antibiogram,Antimicrobial Susceptibility Breakpoint Determination,Bacterial Sensitivity Test,Breakpoint Determination, Antibacterial Susceptibility,Breakpoint Determination, Antimicrobial Susceptibility,Fungal Drug Sensitivity Tests,Fungus Drug Sensitivity Tests,Sensitivity Test, Bacterial,Sensitivity Tests, Bacterial,Test, Bacterial Sensitivity,Tests, Bacterial Sensitivity,Viral Drug Sensitivity Tests,Virus Drug Sensitivity Tests,Antibiograms,Concentration, Minimum Inhibitory,Concentrations, Minimum Inhibitory,Inhibitory Concentration, Minimum,Inhibitory Concentrations, Minimum,Microbial Sensitivity Test,Minimum Inhibitory Concentrations,Sensitivity Test, Microbial,Sensitivity Tests, Microbial,Test, Microbial Sensitivity,Tests, Microbial Sensitivity
D005419 Flavonoids A group of phenyl benzopyrans named for having structures like FLAVONES. 2-Phenyl-Benzopyran,2-Phenyl-Chromene,Bioflavonoid,Bioflavonoids,Flavonoid,2-Phenyl-Benzopyrans,2-Phenyl-Chromenes,2 Phenyl Benzopyran,2 Phenyl Benzopyrans,2 Phenyl Chromene,2 Phenyl Chromenes
D006090 Gram-Negative Bacteria Bacteria which lose crystal violet stain but are stained pink when treated by Gram's method. Gram Negative Bacteria
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000123 Acetyltransferases Enzymes catalyzing the transfer of an acetyl group, usually from acetyl coenzyme A, to another compound. EC 2.3.1. Acetyltransferase
D015099 3-Oxoacyl-(Acyl-Carrier-Protein) Synthase An enzyme of long-chain fatty acid synthesis, that adds a two-carbon unit from malonyl-(acyl carrier protein) to another molecule of fatty acyl-(acyl carrier protein), giving a beta-ketoacyl-(acyl carrier protein) with the release of carbon dioxide. EC 2.3.1.41. 3 Oxoacyl (Acyl Carrier Protein) Synthase,3-Keto-ACP Synthase,3-Oxoacyl (Acyl Carrier Protein) Synthase,3-Oxoacyl Synthetase,Acyl-Malonyl-ACP Condensing Enzyme,beta Keto Acyl Synthetase,beta Keto-Acyl Carrier Protein Synthase I,beta Keto-Acyl Carrier Protein Synthase II,beta Ketoacyl ACP Synthase,beta-Ketoacyl-Coenzyme A (CoA) Synthase,3 Keto ACP Synthase,3 Oxoacyl Synthetase,Acyl Malonyl ACP Condensing Enzyme,Condensing Enzyme, Acyl-Malonyl-ACP,Synthase, 3-Keto-ACP,Synthetase, 3-Oxoacyl,beta Keto Acyl Carrier Protein Synthase I,beta Keto Acyl Carrier Protein Synthase II
D054889 Fatty Acid Synthase, Type II The form of fatty acid synthase complex found in BACTERIA; FUNGI; and PLANTS. Catalytic steps are like the animal form but the protein structure is different with dissociated enzymes encoded by separate genes. It is a target of some ANTI-INFECTIVE AGENTS which result in disruption of the CELL MEMBRANE and CELL WALL. Fatty Acid Synthase II,Fatty Acid Synthetase Complex, Type II,FAS-II Synthase,Fatty Acid Synthase Type II,Fatty Acid Synthase, Bacterial, Plant, and Fungi Form,FAS II Synthase,Synthase, FAS-II
D057809 HEK293 Cells A cell line generated from human embryonic kidney cells that were transformed with human adenovirus type 5. 293T Cells,HEK 293 Cell Line,HEK 293 Cells,Human Embryonic Kidney Cell Line 293,Human Kidney Cell Line 293,293 Cell, HEK,293 Cells, HEK,293T Cell,Cell, 293T,Cell, HEK 293,Cell, HEK293,Cells, 293T,Cells, HEK 293,Cells, HEK293,HEK 293 Cell,HEK293 Cell
D062105 Molecular Docking Simulation A computer simulation technique that is used to model the interaction between two molecules. Typically the docking simulation measures the interactions of a small molecule or ligand with a part of a larger molecule such as a protein. Molecular Docking,Molecular Docking Simulations,Molecular Docking Analysis,Analysis, Molecular Docking,Docking Analysis, Molecular,Docking Simulation, Molecular,Docking, Molecular,Molecular Docking Analyses,Molecular Dockings,Simulation, Molecular Docking
D018360 Crystallography, X-Ray The study of crystal structure using X-RAY DIFFRACTION techniques. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) X-Ray Crystallography,Crystallography, X Ray,Crystallography, Xray,X Ray Crystallography,Xray Crystallography,Crystallographies, X Ray,X Ray Crystallographies

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