1
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Wang JX, Zhang PL, Gopala L, Lv JS, Lin JM, Zhou CH. A Unique Hybridization Route to Access Hydrazylnaphthalimidols as Novel Structural Scaffolds of Multitargeting Broad-Spectrum Antifungal Candidates. J Med Chem 2024; 67:8932-8961. [PMID: 38814290 DOI: 10.1021/acs.jmedchem.4c00209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
This study developed a class of novel structural antifungal hydrazylnaphthalimidols (HNs) with multitargeting broad-spectrum potential via multicomponent hybridization to confront increasingly severe fungal invasion. Some prepared HNs exhibited considerable antifungal potency; especially nitrofuryl HN 4a (MIC = 0.001 mM) exhibited a potent antifungal activity against Candida albicans, which is 13-fold higher than that of fluconazole. Furthermore, nitrofuryl HN 4a displayed low cytotoxicity, hemolysis and resistance, as well as a rapid fungicidal efficacy. Preliminary mechanistic investigations revealed that nitrofuryl HN 4a could inhibit lactate dehydrogenase to decrease metabolic activity and promote the accumulation of reactive oxygen species, leading to oxidative stress. Moreover, nitrofuryl HN 4a did not exhibit membrane-targeting ability; it could embed into DNA to block DNA replication but could not cleave DNA. These findings implied that HNs are promising as novel structural scaffolds of potential multitargeting broad-spectrum antifungal candidates for treating fungal infection.
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Affiliation(s)
- Jin-Xin Wang
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Peng-Li Zhang
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Lavanya Gopala
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Jing-Song Lv
- College of Chemical Engineering, Guizhou University of Engineering Science, Bijie 551700, China
| | - Jian-Mei Lin
- Department of Infections, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
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2
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Zhao X, Verma R, Sridhara MB, Sharath Kumar KS. Fluorinated azoles as effective weapons in fight against methicillin-resistance staphylococcus aureus (MRSA) and its SAR studies. Bioorg Chem 2024; 143:106975. [PMID: 37992426 DOI: 10.1016/j.bioorg.2023.106975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/22/2023] [Accepted: 11/14/2023] [Indexed: 11/24/2023]
Abstract
The rapid spread of Methicillin-resistant Staphylococcus aureus (MRSA) and its difficult-to-treat skin and filmsy diseases are making MRSA a threat to human life. The most dangerous feature is the fast emergence of MRSA resistance to all recognized antibiotics, including vancomycin. The creation of novel, effective, and non-toxic drug candidates to combat MRSA isolates is urgently required. Fluorine containing small molecules have taken a centre stage in the field of drug development. Over the last 50 years, there have been a growing number of fluorinated compounds that have been approved since the clinical usage of fluorinated corticosteroids in the 1950 s and fluoroquinolones in the 1980 s. Due to its advantages in terms of potency and ADME (absorption, distribution, metabolism, and excretion), fluoro-pharmaceuticals have been regarded as a potent and useful tool in the rational drug design method. The flexible bioactive fluorinated azoles are ideal candidates for the development of new antibiotics. This review summarizes the decade developments of fluorinated azole derivatives with a wide antibacterial activity against diverged MRSA strains. In specific, we correlated the efficacy of structurally varied fluorinated azole analogues including thiazole, benzimidazole, oxadiazole and pyrazole against MRSA and discussed different angles of structure-activity relationship (SAR).
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Affiliation(s)
- Xuanming Zhao
- Energy Engineering College, Yulin University, Yulin City-719000, P. R. China
| | - Rameshwari Verma
- School of New Energy, Yulin University, Yulin 719000, Shaanxi, P. R. China
| | - M B Sridhara
- Department of Chemistry, Rani Channamma University, Vidyasangama, Belagavi 591156, India
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3
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Li SR, Tan YM, Zhang L, Zhou CH. Comprehensive Insights into Medicinal Research on Imidazole-Based Supramolecular Complexes. Pharmaceutics 2023; 15:pharmaceutics15051348. [PMID: 37242590 DOI: 10.3390/pharmaceutics15051348] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023] Open
Abstract
The electron-rich five-membered aromatic aza-heterocyclic imidazole, which contains two nitrogen atoms, is an important functional fragment widely present in a large number of biomolecules and medicinal drugs; its unique structure is beneficial to easily bind with various inorganic or organic ions and molecules through noncovalent interactions to form a variety of supramolecular complexes with broad medicinal potential, which is being paid an increasing amount of attention regarding more and more contributions to imidazole-based supramolecular complexes for possible medicinal application. This work gives systematical and comprehensive insights into medicinal research on imidazole-based supramolecular complexes, including anticancer, antibacterial, antifungal, antiparasitic, antidiabetic, antihypertensive, and anti-inflammatory aspects as well as ion receptors, imaging agents, and pathologic probes. The new trend of the foreseeable research in the near future toward imidazole-based supramolecular medicinal chemistry is also prospected. It is hoped that this work provides beneficial help for the rational design of imidazole-based drug molecules and supramolecular medicinal agents and more effective diagnostic agents and pathological probes.
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Affiliation(s)
- Shu-Rui Li
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yi-Min Tan
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ling Zhang
- School of Chemical Technology, Shijiazhuang University, Shijiazhuang 050035, China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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4
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Tan HY, Liang FM, Zhang WJ, Zhang Y, Cui JH, Dai YY, Qiu XM, Wang WH, Zhou Y, Chen DP, Li CP. Novel 2-Amino-1,4-Naphthoquinone Derivatives Induce A549 Cell Death through Autophagy. Molecules 2023; 28:molecules28083289. [PMID: 37110525 PMCID: PMC10143525 DOI: 10.3390/molecules28083289] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/14/2023] [Accepted: 03/28/2023] [Indexed: 04/29/2023] Open
Abstract
A series of 1,4-naphthoquinone derivatives containing were synthesized as anti-cancer agents and the crystal structure of compound 5a was confirmed by X-ray diffraction. In addition, the inhibitory activities against four cancer cell lines (HepG2, A549, K562, and PC-3) were tested, respectively, and compound 5i showed significant cytotoxicity on the A549 cell line with the IC50 of 6.15 μM. Surprisingly, in the following preliminary biological experiments, we found that compound 5i induced autophagy by promoting the recycling of EGFR and signal transduction in the A549 cell, resulting in the activation of the EGFR signal pathway. The potential binding pattern between compound 5i and EGFR tyrosine kinase (PDB ID: 1M17) was also identified by molecular docking. Our research paves the way for further studies and the development of novel and powerful anti-cancer drugs.
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Affiliation(s)
- Hua-Yuan Tan
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China
| | - Feng-Ming Liang
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China
| | - Wen-Jing Zhang
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China
| | - Yi Zhang
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China
| | - Jun-Hao Cui
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China
| | - Yu-Yu Dai
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China
| | - Xue-Mei Qiu
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China
| | - Wen-Hang Wang
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China
| | - Yue Zhou
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China
- Guizhou Engineering Laboratory for Synthetic Drugs, Guizhou University, Guiyang 550025, China
| | - Dan-Ping Chen
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China
- Guizhou Engineering Laboratory for Synthetic Drugs, Guizhou University, Guiyang 550025, China
| | - Cheng-Peng Li
- School of Pharmaceutical Sciences, Guizhou University, Guiyang 550025, China
- Guizhou Engineering Laboratory for Synthetic Drugs, Guizhou University, Guiyang 550025, China
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5
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Beteck RM, Isaacs M, Legoabe LJ, Hoppe HC, Tam CC, Kim JH, Petzer JP, Cheng LW, Quiambao Q, Land KM, Khanye SD. Synthesis and in vitro antiprotozoal evaluation of novel metronidazole-Schiff base hybrids. Arch Pharm (Weinheim) 2023; 356:e2200409. [PMID: 36446720 DOI: 10.1002/ardp.202200409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 10/10/2022] [Accepted: 11/03/2022] [Indexed: 12/05/2022]
Abstract
Herein we report the synthesis of 21 novel small molecules inspired by metronidazole and Schiff base compounds. The compounds were evaluated against Trichomonas vaginalis and cross-screened against other pathogenic protozoans of clinical relevance. Most of these compounds were potent against T. vaginalis, exhibiting IC50 values < 5 µM. Compound 20, the most active compound against T. vaginalis, exhibited an IC50 value of 3.4 µM. A few compounds also exhibited activity against Plasmodium falciparum and Trypanosomal brucei brucei, with compound 6 exhibiting an IC50 value of 0.7 µM against P. falciparum and compound 22 exhibiting an IC50 value of 1.4 µM against T.b. brucei. Compound 22 is a broad-spectrum antiprotozoal agent, showing activities against all three pathogenic protozoans under investigation.
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Affiliation(s)
- Richard M Beteck
- Department of Pharmaceutical Chemistry, Centre of Excellence for Pharmaceutical Sciences (Pharmacen), North-West University, Potchefstroom, South Africa
| | - Michelle Isaacs
- Centre for Chemico- and Biomedical Research, Rhodes University, Makhanda, South Africa
| | - Lesetja J Legoabe
- Department of Pharmaceutical Chemistry, Centre of Excellence for Pharmaceutical Sciences (Pharmacen), North-West University, Potchefstroom, South Africa
| | - Heinrich C Hoppe
- Centre for Chemico- and Biomedical Research, Rhodes University, Makhanda, South Africa.,Faculty of Science, Department of Biochemistry and Microbiology, Rhodes University, Makhanda, South Africa
| | - Christina C Tam
- Foodborne Toxin Detection and Prevention Research Unit, Agricultural Research Service, United States Department of Agriculture, Albany, California, USA
| | - Jong H Kim
- Foodborne Toxin Detection and Prevention Research Unit, Agricultural Research Service, United States Department of Agriculture, Albany, California, USA
| | - Jacobus P Petzer
- Department of Pharmaceutical Chemistry, Centre of Excellence for Pharmaceutical Sciences (Pharmacen), North-West University, Potchefstroom, South Africa
| | - Luisa W Cheng
- Foodborne Toxin Detection and Prevention Research Unit, Agricultural Research Service, United States Department of Agriculture, Albany, California, USA
| | - Quincel Quiambao
- Department of Biological Sciences, University of the Pacific, Stockton, California, USA
| | - Kirkwood M Land
- Department of Biological Sciences, University of the Pacific, Stockton, California, USA
| | - Setshaba D Khanye
- Centre for Chemico- and Biomedical Research, Rhodes University, Makhanda, South Africa.,Division of Pharmaceutical Chemistry, Faculty of Pharmacy, Rhodes University, Makhanda, South Africa
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6
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Abd El-Fattah W, Elamin NY. Synthesis, Spectroscopic Characterization, Molecular Docking and Biological Activity of Novel Secnidazole Metal Complexes. INORGANICS 2022; 10:156. [DOI: 10.3390/inorganics10100156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
Abstract
In this study, four new Secnidazole metal complexes have been synthesized through the reaction of Secnidazole drug with AuCl3, PtCl2, PdCl2, AgNO3 salts. The structures of the synthesized complexes were elucidated using elemental analysis, molar conductivity, thermal analysis, IR, 1H-NMR and UV-Vis spectroscopy. The spectroscopic results confirm that Secnidazole drug act as a bidentate ligand, coordinated to the metal ion with N3 of the imidazole ring and oxygen atom of OH group. The antimicrobial data revealed that the complexes possess a better antibacterial activity against most of the selected bacteria species than the free drug. In addition, the cytotoxic data showed that Ag-complex possesses a potent anticancer activity against MCF-7 cell line. The docking data showed that the synthesized complexes displayed a good and effective binding model against breast cancer protein (3hb5) which was confirmed by the low values of binding energy and multiple H-bonds.
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7
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Yang XC, Hu CF, Zhang PL, Li S, Hu CS, Geng RX, Zhou CH. Coumarin thiazoles as unique structural skeleton of potential antimicrobial agents. Bioorg Chem 2022; 124:105855. [DOI: 10.1016/j.bioorg.2022.105855] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/19/2022] [Accepted: 05/04/2022] [Indexed: 12/12/2022]
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8
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Yang XC, Zhang PL, Kumar KV, Li S, Geng RX, Zhou CH. Discovery of unique thiazolidinone-conjugated coumarins as novel broad spectrum antibacterial agents. Eur J Med Chem 2022; 232:114192. [DOI: 10.1016/j.ejmech.2022.114192] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/28/2022] [Accepted: 02/07/2022] [Indexed: 01/06/2023]
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9
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Hu Y, Zhang L, Huang J, Wang T, Zhang J, Yu C, Pan G, Zhang L, Zhu Z, Zhang J. Novel Schiff Base‐conjugated
para
‐Aminobenzenesulfonamide Indole Hybrids as Potentially Muti‐targeting Blockers against
Staphylococcus aureus. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yuanyuan Hu
- Sauvage Laboratory for Smart Materials Harbin Institute of Technology (Shenzhen) Shenzhen 518055 P. R. China
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology School of Materials Science and Engineering Harbin Institute of Technology Shenzhen 518055 P. R. China
| | - Ling Zhang
- School of Science Harbin Institute of Technology Shenzhen 518055 P. R. China
| | - Jinxu Huang
- Sauvage Laboratory for Smart Materials Harbin Institute of Technology (Shenzhen) Shenzhen 518055 P. R. China
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology School of Materials Science and Engineering Harbin Institute of Technology Shenzhen 518055 P. R. China
| | - Tiansheng Wang
- Sauvage Laboratory for Smart Materials Harbin Institute of Technology (Shenzhen) Shenzhen 518055 P. R. China
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology School of Materials Science and Engineering Harbin Institute of Technology Shenzhen 518055 P. R. China
| | - Jichuan Zhang
- Department of Chemistry University of Idaho Moscow Idaho 83844-2324 USA
| | - Congwei Yu
- College of Science China Agricultural University Beijing 100193 P. R. China
| | - Guangxing Pan
- Sauvage Laboratory for Smart Materials Harbin Institute of Technology (Shenzhen) Shenzhen 518055 P. R. China
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology School of Materials Science and Engineering Harbin Institute of Technology Shenzhen 518055 P. R. China
| | - Ling Zhang
- School of Chemical Technology Shijiazhuang University Shijiazhuang Hebei 050035 P. R. China
| | - Zhenye Zhu
- Sauvage Laboratory for Smart Materials Harbin Institute of Technology (Shenzhen) Shenzhen 518055 P. R. China
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology School of Materials Science and Engineering Harbin Institute of Technology Shenzhen 518055 P. R. China
| | - Jiaheng Zhang
- Sauvage Laboratory for Smart Materials Harbin Institute of Technology (Shenzhen) Shenzhen 518055 P. R. China
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology School of Materials Science and Engineering Harbin Institute of Technology Shenzhen 518055 P. R. China
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10
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Alzahrani AY, Ammar YA, Salem MA, Abu-Elghait M, Ragab A. Design, synthesis, molecular modeling, and antimicrobial potential of novel 3-[(1H-pyrazol-3-yl)imino]indolin-2-one derivatives as DNA gyrase inhibitors. Arch Pharm (Weinheim) 2021; 355:e2100266. [PMID: 34747519 DOI: 10.1002/ardp.202100266] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 12/11/2022]
Abstract
A series of 3-[(1H-pyrazol-3-yl)imino]indolin-2-one derivatives were designed using the molecular hybridization method, characterized using different spectroscopic techniques, and evaluated for their in vitro antimicrobial activity. Most of the target compounds demonstrated good to moderate antimicrobial activity compared with ciprofloxacin and fluconazole. Four compounds (8b, 9a, 9c, and 10a) showed encouraging results, with minimal inhibitory concentration (MIC) values (53.45-258.32 µM) comparable to those of norfloxacin (100.31-200.63 µM) and ciprofloxacin (48.33-96.68 µM). Noticeably, the four derivatives revealed excellent bactericidal and fungicidal activities, except for the bacteriostatic potential of compounds 8b and 9a against Escherichia coli and Staphylococcus aureus, respectively. The time-killing kinetic study against S. aureus confirmed the efficacy of these derivatives. Furthermore, two of the four promising derivatives, 9a and 10a, could prevent the formation of biofilms of S. aureus without affecting the bacterial growth at low concentrations. A combination study with seven commercial antibiotics against the multidrug-resistant bacterium P. aeruginosa showed a notable reduction in the antibiotic MIC values, represented mainly through a synergistic or additive effect. The enzymatic assay implied that the most active derivatives had inhibition potency against DNA gyrase comparable to that of ciprofloxacin. Molecular docking and density functional theory calculations were performed to explore the binding mode and study the reactivity of the promising compounds.
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Affiliation(s)
- Abdullah Y Alzahrani
- Department of Chemistry, Faculty of Science and Arts, King Khalid University, Mohail, Assir, Saudi Arabia
| | - Yousry A Ammar
- Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt
| | - Mohamed A Salem
- Department of Chemistry, Faculty of Science and Arts, King Khalid University, Mohail, Assir, Saudi Arabia.,Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt
| | - Mohammed Abu-Elghait
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt
| | - Ahmed Ragab
- Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt
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11
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Hu Y, Hu S, Pan G, Wu D, Wang T, Yu C, Fawad Ansari M, Yadav Bheemanaboina RR, Cheng Y, Bai L, Zhou C, Zhang J. Potential antibacterial ethanol-bridged purine azole hybrids as dual-targeting inhibitors of MRSA. Bioorg Chem 2021; 114:105096. [PMID: 34147878 DOI: 10.1016/j.bioorg.2021.105096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 06/04/2021] [Accepted: 06/10/2021] [Indexed: 11/30/2022]
Abstract
A new class of antibacterial ethanol-bridged purine azole hybrids as potential dual-targeting inhibitors was developed. Bioactivity evaluation showed that some of the target compounds had prominent antibacterial activity against the tested bacteria, notably, metronidazole hybrid 3a displayed significant inhibitory activity against MRSA (MIC = 6 μM), and had no obvious toxicity on normal mammalian cells (RAW 264.7). In addition, compound 3a also did not induce drug resistance of MRSA obviously, even after fifteen passages. Molecular modeling studies showed that the highly active molecule 3a could insert into the base pairs of topoisomerase IA-DNA as well as topoisomerase IV-DNA through hydrogen bonding. Furthermore, a preliminary study on the antibacterial mechanism revealed that the active molecule 3a could rupture the bacterial membrane of MRSA and insert into MRSA DNA to block its replication, thus possibly exhibiting strong antibacterial activity. These results strongly indicated that the highly active hybrid 3a could be used as a potential dual-targeting inhibitor of MRSA for further development of valuable antimicrobials.
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Affiliation(s)
- Yuanyuan Hu
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China; Shenzhen Key Laboratory of Flexible Printed Electronics Technology, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055 China
| | - Shunyou Hu
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China; Shenzhen Key Laboratory of Flexible Printed Electronics Technology, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055 China
| | - Guangxing Pan
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China; Shenzhen Key Laboratory of Flexible Printed Electronics Technology, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055 China
| | - Dong Wu
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China; Shenzhen Key Laboratory of Flexible Printed Electronics Technology, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055 China
| | - Tiansheng Wang
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China; Shenzhen Key Laboratory of Flexible Printed Electronics Technology, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055 China
| | - Congwei Yu
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China; Shenzhen Key Laboratory of Flexible Printed Electronics Technology, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055 China
| | - Mohammad Fawad Ansari
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Rammohan R Yadav Bheemanaboina
- Sokol Institute for Pharmaceutical Life Sciences, Department of Chemistry and Biochemistry, Montclair State University, New Jersey 07043, USA
| | - Yu Cheng
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Ligang Bai
- School of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Chenghe Zhou
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Jiaheng Zhang
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China; Shenzhen Key Laboratory of Flexible Printed Electronics Technology, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055 China.
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12
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Sui YF, Ansari MF, Fang B, Zhang SL, Zhou CH. Discovery of novel purinylthiazolylethanone derivatives as anti-Candida albicans agents through possible multifaceted mechanisms. Eur J Med Chem 2021; 221:113557. [PMID: 34087496 DOI: 10.1016/j.ejmech.2021.113557] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 05/17/2021] [Accepted: 05/18/2021] [Indexed: 12/13/2022]
Abstract
An unprecedented amount of fungal and fungal-like infections has recently brought about some of the most severe die-offs and extinctions due to fungal drug resistance. Aimed to alleviate the situation, new effort was made to develop novel purinylthiazolylethanone derivatives, which were expected to combat the fungal drug resistance. Some prepared purinylthiazolylethanone derivatives possessed satisfactory inhibitory action towards the tested fungi, among which compound 8c gave a MIC value of 1 μg/mL against C. albicans. The active molecule 8c was able to kill C. albicans with undetectable resistance as well as low hematotoxicity and cytotoxicity. Furthermore, it could hinder the growth of C. albicans biofilm, thus avoiding the occurrence of drug resistance. Mechanism research manifested that purinylthiazolylethanone derivative 8c led to damage of cell wall and membrane disruption, so protein leakage and the cytoplasmic membrane depolarization were observed. On this account, the activity of fungal lactate dehydrogenase was reduced and metabolism was impeded. Meanwhile, the increased levels of reactive oxygen species (ROS) and reactive nitrogen species (RNS) disordered redox equilibrium, giving rise to oxidative damage to fungal cells and fungicidal effect.
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Affiliation(s)
- Yan-Fei Sui
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Mohammad Fawad Ansari
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Bo Fang
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators As Innovative Medicine, Chongqing University of Arts and Sciences, Chongqing, 402160, China.
| | - Shao-Lin Zhang
- School of Pharmaceutical Sciences, Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chongqing University, Chongqing, 401331, China.
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China.
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13
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Sui YF, Ansari MF, Zhou CH. Pyrimidinetrione-imidazoles as a Unique Structural Type of Potential Agents towards Candida Albicans: Design, Synthesis and Biological Evaluation. Chem Asian J 2021; 16:1417-1429. [PMID: 33829660 DOI: 10.1002/asia.202100146] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/15/2021] [Indexed: 12/15/2022]
Abstract
Substantial morbidity and mortality of fungal infections have aroused concerns all over the world, and common Candida spp. currently bring about severe systemic infections. A series of pyrimidinetrione-imidazole conjugates as potentially antifungal agents were developed. Bioassays manifested that 4-fluobenzyl pyrimidinetrione imidazole 5 f exerted favorable inhibition towards C. albicans (MIC=0.002 mM), being 6.5 folds more active than clinical antifungal drug fluconazole (MIC=0.013 mM). Preliminary mechanism research indicated that compound 5 f could not only depolarize membrane potential but also permeabilize the membrane of C. albicans. Molecular docking was operated to simulate the interaction mode between molecule 5 f and CYP51. In addition, hybrid 5 f might form 5 f-DNA supramolecular complex via intercalating into DNA. The interference of membrane and DNA might contribute to its fungicidal capacity with no obvious tendency to induce the resistance against C. albicans. Conjugate 5 f endowed good blood compatibility as well as low cytotoxicity towards HeLa and HEK-293T cells.
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Affiliation(s)
- Yan-Fei Sui
- Institute of Bioorganic & Medicinal Chemistry', Key Laboratory of Luminescence Analysis and Molecular Sensing (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
| | - Mohammad Fawad Ansari
- Institute of Bioorganic & Medicinal Chemistry', Key Laboratory of Luminescence Analysis and Molecular Sensing (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry', Key Laboratory of Luminescence Analysis and Molecular Sensing (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China
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14
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Liang XY, Battini N, Sui YF, Ansari MF, Gan LL, Zhou CH. Aloe-emodin derived azoles as a new structural type of potential antibacterial agents: design, synthesis, and evaluation of the action on membrane, DNA, and MRSA DNA isomerase. RSC Med Chem 2021; 12:602-608. [PMID: 34046631 PMCID: PMC8128066 DOI: 10.1039/d0md00429d] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 01/25/2021] [Indexed: 12/30/2022] Open
Abstract
As serious global drug resistance motivated the exploration of new structural drugs, we developed a type of novel structural aloe-emodin azoles as potential antibacterial agents in this work. Some target aloe-emodin azoles displayed effective activity against the tested strains, especially tetrazolyl aloe-emodin 4b showed a low MIC value of 2 μg mL-1 towards MRSA, being more efficient than the reference drug norfloxacin (MIC = 8 μg mL-1). Also, the active molecule 4b exhibited low cytotoxicity against LO2 cells with no distinct tendency to induce the concerned resistance towards MRSA. The tetrazolyl derivative 4b was preliminarily investigated for the possible mechanism; it was revealed that tetrazolyl derivative 4b could both disrupt the integrity of MRSA membrane and form 4b-DNA supramolecular complex by intercalating into DNA. Moreover, tetrazolyl aloe-emodin 4b could bind with MRSA DNA isomerase at multiple sites through hydrogen bonds in molecular simulation.
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Affiliation(s)
- Xin-Yuan Liang
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University Chongqing 400715 PR China +86 23 68254967 +86 23 68254967
| | - Narsaiah Battini
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University Chongqing 400715 PR China +86 23 68254967 +86 23 68254967
| | - Yan-Fei Sui
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University Chongqing 400715 PR China +86 23 68254967 +86 23 68254967
| | - Mohammad Fawad Ansari
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University Chongqing 400715 PR China +86 23 68254967 +86 23 68254967
| | - Lin-Ling Gan
- Chongqing Engineering Research Center of Pharmaceutical Sciences, School of Pharmacy, Chongqing Medical and Pharmaceutical College Chongqing 401331 PR China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University Chongqing 400715 PR China +86 23 68254967 +86 23 68254967
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15
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Synthesis and Biological Evaluation of Quinazolonethiazoles as New Potential Conquerors towards
Pseudomonas Aeruginosa. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000627] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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16
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Tangadanchu VKR, Sui YF, Zhou CH. Isatin-derived azoles as new potential antimicrobial agents: Design, synthesis and biological evaluation. Bioorg Med Chem Lett 2021; 41:128030. [PMID: 33839249 DOI: 10.1016/j.bmcl.2021.128030] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/03/2021] [Accepted: 04/05/2021] [Indexed: 12/18/2022]
Abstract
Novel antibiotics are forced to be developed on account of multidrug-resistant bacteria with serious threats to human health. This work developed isatin-derived azoles as new potential antimicrobial agents. Bioactive assay revealed that isatin hybridized 1,2,4-triazole 7a exhibited excellent inhibitory activity against E. coli ATCC 25,922 with an MIC value of 1 µg/mL, which was 8-fold more potent than reference drug norfloxacin. The active molecule 7a possessed the ability to kill some bacteria and fungi as well as displayed low propensity to induce resistance towards E. coli ATCC25922. Preliminary mechanism investigation indicated that hybrid 7a might block deoxyribonucleic acid (DNA) replication by intercalating with DNA and possibly interacting with DNA polymerase III, thus exerting its antimicrobial potency.
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Affiliation(s)
- Vijai Kumar Reddy Tangadanchu
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Yan-Fei Sui
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
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17
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Chen JP, Battini N, Ansari MF, Zhou CH. Membrane active 7-thiazoxime quinolones as novel DNA binding agents to decrease the genes expression and exert potent anti-methicillin-resistant Staphylococcus aureus activity. Eur J Med Chem 2021; 217:113340. [PMID: 33725630 DOI: 10.1016/j.ejmech.2021.113340] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/30/2021] [Accepted: 02/25/2021] [Indexed: 12/16/2022]
Abstract
A novel class of 7-thiazoxime quinolones was developed as potential antimicrobial agents for the sake of bypassing resistance of quinolones. Biological assays revealed that some constructed 7-thiazoxime quinolones possessed effective antibacterial efficiency. Methyl acetate oxime derivative 6l exhibited 32-fold more active than ciprofloxacin against MRSA, which also possessed rapidly bactericidal ability and low toxicity towards mammalian cells. The combination use of 7-thiazoxime quinolone 6l and ciprofloxacin was able to improve antibacterial potency and effectively alleviate bacterial resistance. The preliminarily mechanism exploration revealed that compound 6l could destroy the cell membrane and insert into MRSA DNA to bind with DNA gyrase, then decrease the expression of gyrB and femB genes. The above results strongly suggested that methyl acetate oxime derivative 6l held a promise for combating MRSA infection.
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Affiliation(s)
- Jin-Ping Chen
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Narsaiah Battini
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Mohammad Fawad Ansari
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China.
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18
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Hu Y, Pan G, Yang Z, Li T, Wang J, Ansari MF, Hu C, Yadav Bheemanaboina RR, Cheng Y, Zhou C, Zhang J. Novel Schiff base-bridged multi-component sulfonamide imidazole hybrids as potentially highly selective DNA-targeting membrane active repressors against methicillin-resistant Staphylococcus aureus. Bioorg Chem 2020; 107:104575. [PMID: 33385978 DOI: 10.1016/j.bioorg.2020.104575] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 12/08/2020] [Accepted: 12/17/2020] [Indexed: 01/12/2023]
Abstract
A new type of Schiff base-bridged multi-component sulfonamide imidazole hybrids with antimicrobial potential was developed. Some target compounds showed significant antibacterial potency. Observably, butylene hybrids 4h exhibited remarkable inhibitory efficacy against clinical MRSA (MIC = 1 µg/mL), but had no significant toxic effect on normal mammalian cells (RAW 264.7). The highly active molecule 4h was revealed by molecular modeling study that it could insert into the base-pairs of DNA hexamer duplex and bind with the ASN-62 residue of human carbonic anhydrase isozyme II through hydrogen bonding. Furthermore, further preliminary antibacterial mechanism experiments confirmed that compound 4h could effectively interfere with MRSA membrane and insert into bacterial DNA isolated from clinical MRSA strains through non-covalent bonding to produce a supramolecular complex, thus exerting its strong antibacterial efficacy by impeding DNA replication. These findings strongly implied that the highly active hybrid 4h could be used as a potential DNA-targeting template for the development of valuable antimicrobial agent.
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Affiliation(s)
- Yuanyuan Hu
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China
| | - Guangxing Pan
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China
| | - Zhixiong Yang
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China
| | - Tiejun Li
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Juan Wang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Mohammad Fawad Ansari
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Chunfang Hu
- Dongguan School Affiliated to South China Normal University, Dongguan 523755, China
| | - Rammohan R Yadav Bheemanaboina
- Sokol Institute for Pharmaceutical Life Sciences, Department of Chemistry and Biochemistry, Montclair State University, NJ 07043, USA
| | - Yu Cheng
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Chenghe Zhou
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Jiaheng Zhang
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China.
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19
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Metronidazole-conjugates: A comprehensive review of recent developments towards synthesis and medicinal perspective. Eur J Med Chem 2020; 210:112994. [PMID: 33234343 DOI: 10.1016/j.ejmech.2020.112994] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/22/2020] [Accepted: 11/02/2020] [Indexed: 12/13/2022]
Abstract
Nitroimidazoles based compounds remain a hot topic of research in medicinal chemistry due to their numerous biological activities. Moreover, many clinical candidates based on this chemical core have been reported to be valuable in the treatment of human diseases. Metronidazole (MTZ) derived conjugates demonstrated a potential application in medicinal chemistry research over the last decade. In this review, we summarize the synthesis, key structure-activity-relationship (SAR) and associated biological activities such as antimicrobial, anticancer, antidiabetic, anti-inflammatory, anti-HIV and anti-parasitic (Anti-trichomonas, antileishmanial, antiamoebic and anti-giardial) of explored MTZ-conjugates. The molecular docking analysis is also presented simultaneously, which will assist in developing an understanding towards designing of new MTZ-conjugates for target-based drug discovery against multiple disease areas.
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20
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Rossi R, Ciofalo M. An Updated Review on the Synthesis and Antibacterial Activity of Molecular Hybrids and Conjugates Bearing Imidazole Moiety. Molecules 2020; 25:molecules25215133. [PMID: 33158247 PMCID: PMC7663458 DOI: 10.3390/molecules25215133] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/25/2020] [Accepted: 10/26/2020] [Indexed: 01/28/2023] Open
Abstract
The rapid growth of serious infections caused by antibiotic resistant bacteria, especially the nosocomial ESKAPE pathogens, has been acknowledged by Governments and scientists and is one of the world's major health problems. Various strategies have been and are currently investigated and developed to reduce and/or delay the bacterial resistance. One of these strategies regards the design and development of antimicrobial hybrids and conjugates. This unprecedented critical review, in which our continuing interest in the synthesis and evaluation of the bioactivity of imidazole derivatives is testified, aims to summarise and comment on the results obtained from the end of the 1900s until February 2020 in studies conducted by numerous international research groups on the synthesis and evaluation of the antibacterial properties of imidazole-based molecular hybrids and conjugates in which the pharmacophoric constituents of these compounds are directly covalently linked or connected through a linker or spacer. In this review, significant attention was paid to summarise the strategies used to overcome the antibiotic resistance of pathogens whose infections are difficult to treat with conventional antibiotics. However, it does not include literature data on the synthesis and evaluation of the bioactivity of hybrids and conjugates in which an imidazole moiety is fused with a carbo- or heterocyclic subunit.
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Affiliation(s)
- Renzo Rossi
- Dipartimento di Chimica e Chimica Industriale, University of Pisa, Via G. Moruzzi, 3, I-56124 Pisa, Italy
- Correspondence: (R.R.); (M.C.)
| | - Maurizio Ciofalo
- Dipartimento di Scienze Agrarie, Alimentari e Forestali, University of Palermo, Viale delle Scienze, Edificio 4, I-90128 Palermo, Italy
- Correspondence: (R.R.); (M.C.)
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21
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Spectroscopic and computational analysis of the (E/Z)-isomers in the synthesis of new alkyl-oxime derivatives. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128563] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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An unexpected discovery toward novel membrane active sulfonyl thiazoles as potential MRSA DNA intercalators. Future Med Chem 2020; 12:1709-1727. [DOI: 10.4155/fmc-2019-0303] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Aim: With the increasing emergence of drug-resistant bacteria, the need for new antimicrobial agents has become extremely urgent. This work was to develop sulfonyl thiazoles as potential antibacterial agents. Results & methodology: Novel hybrids of sulfonyl thiazoles were developed from commercial acetanilide and acetylthiazole. Hybrids 6e and 6f displayed excellent inhibitory efficacy against clinical methicillin-resistant Staphylococcus aureus (MRSA) (minimum inhibitory concentration = 1 μg/ml) without obvious toxicity toward normal mammalian cells (RAW 264.7). The combination uses were found to improve the antimicrobial ability. Further preliminary antibacterial mechanism experiments showed that the active molecule 6f could effectively interfere with MRSA membrane and insert into MRSA DNA. Conclusion: Compounds 6e and 6f could serve as potential DNA-targeting templates toward the development of promising antimicrobial agents.
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23
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Zhang Z, Chen Z, Zhang S, Shao X, Zhou Z. Antibacterial activity of the structurally novel ocotillol-type lactone and its analogues. Fitoterapia 2020; 144:104597. [PMID: 32325155 DOI: 10.1016/j.fitote.2020.104597] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 04/18/2020] [Accepted: 04/18/2020] [Indexed: 01/04/2023]
Abstract
A novel series of ocotillol-type lactone derivatives were designed and synthesized in order to study their antibacterial activity and structure-activity relationships. Among which, compounds 4j and 4 m were found to be the most active with minimum inhibitory concentrations (MICs) of 1-4 μg/mL against Gram-positive bacteria and showed low cytotoxicity against MCF-7, HEK-293 and HK-2 cells at their MICs. The antibacterial effect of compound 4 m was characterized further by scanning electron microscopy, cytoplasmic β-galactosidase leakage assay and UV-visible analysis. The results showed that 4 m may exert its antibacterial effect by damaging bacterial cell membranes and disrupting the function of DNA, both of which could lead to rapid cell death.
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Affiliation(s)
- Ziyi Zhang
- Department of Pharmacy, Medical College, China Three Gorges University, Yichang 443002, China
| | - Zhiguo Chen
- Department of Pharmacy, Traditional Chinese Medicine Hospital of China Three Gorges University, Yichang Hospital of Traditional Chinese Medicine, Yichang 443002, China
| | - Shengyu Zhang
- Department of Pharmacy, Medical College, China Three Gorges University, Yichang 443002, China
| | - Xiao Shao
- Department of Pharmacy, Medical College, China Three Gorges University, Yichang 443002, China
| | - Zhiwen Zhou
- Department of Pharmacy, Medical College, China Three Gorges University, Yichang 443002, China.
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24
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Sui YF, Li D, Wang J, Bheemanaboina RRY, Ansari MF, Gan LL, Zhou CH. Design and biological evaluation of a novel type of potential multi-targeting antimicrobial sulfanilamide hybrids in combination of pyrimidine and azoles. Bioorg Med Chem Lett 2020; 30:126982. [DOI: 10.1016/j.bmcl.2020.126982] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 01/03/2020] [Accepted: 01/17/2020] [Indexed: 12/12/2022]
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25
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Hu CF, Zhang PL, Sui YF, Lv JS, Ansari MF, Battini N, Li S, Zhou CH, Geng RX. Ethylenic conjugated coumarin thiazolidinediones as new efficient antimicrobial modulators against clinical methicillin-resistant Staphylococcus aureus. Bioorg Chem 2020; 94:103434. [DOI: 10.1016/j.bioorg.2019.103434] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 10/30/2019] [Accepted: 11/11/2019] [Indexed: 12/18/2022]
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26
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Indole-nitroimidazole conjugates as efficient manipulators to decrease the genes expression of methicillin-resistant Staphylococcus aureus. Eur J Med Chem 2019; 179:723-735. [DOI: 10.1016/j.ejmech.2019.06.093] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 06/28/2019] [Accepted: 06/28/2019] [Indexed: 12/28/2022]
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27
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Zhang J, Ba Y, Wang S, Yang H, Hou X, Xu Z. Nitroimidazole-containing compounds and their antibacterial and antitubercular activities. Eur J Med Chem 2019; 179:376-388. [PMID: 31260891 DOI: 10.1016/j.ejmech.2019.06.068] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 06/23/2019] [Accepted: 06/24/2019] [Indexed: 11/24/2022]
Abstract
Infections especially tuberculosis caused by various bacteria including mycobacteria result in millions of lives every year, but the control of bacterial infections is challenged by the limitation of effective pharmaceuticals against drug-resistant pathogens. Nitroimidazoles belong to a group of nitroheterocyclic compounds that have broad-spectrum activity against a series of organisms such as mycobacteria, anaerobic Gram-positive and Gram-negative bacteria, and some of them have already been used in clinics or under clinical trials for the treatment of infectious diseases. In this review, we made an overview of the recent advances in nitroimidazole-containing compounds with antibacterial and antitubercular activity in the recent 20 years.
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Affiliation(s)
- Jingyu Zhang
- Pharmacy College, Henan University of Chinese Medicine, 450046, Zhengzhou, PR China
| | - Yanyan Ba
- Pharmacy College, Henan University of Chinese Medicine, 450046, Zhengzhou, PR China
| | - Su Wang
- Pharmacy College, Henan University of Chinese Medicine, 450046, Zhengzhou, PR China
| | - Huaixia Yang
- Pharmacy College, Henan University of Chinese Medicine, 450046, Zhengzhou, PR China
| | - Xuehui Hou
- Faculty of Science, Henan University of Animal Husbandry and Economy, 450046, Zhengzhou, PR China.
| | - Zhi Xu
- Huanghuai University, College of Chemistry and Pharmaceutical Engineering, Zhumadian, PR China.
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28
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Li N, Qu G, Xue J, Li X, Zhao X, Yan Y, Gao D, Zhang L, Wang P, Zhang M, Zhao B, Miao J, Lin Z. Discovery of a new autophagy inducer for A549 lung cancer cells. Bioorg Med Chem 2019; 27:2845-2856. [PMID: 31103402 DOI: 10.1016/j.bmc.2019.05.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 04/28/2019] [Accepted: 05/09/2019] [Indexed: 12/24/2022]
Abstract
Biological activities of a series of fluorescent compounds against human lung cancer cell line A549 were investigated. The results showed that (E)-1,3,3-trimethyl-2-(4-(piperidin-1-yl)styryl)-3H-indol-1-ium iodide (8) and (E)-2-(5,5-dimethyl-3-(4-(piperazin-1-yl)styryl)cyclohex-2-en-1-ylidene) malononitrile (11) could inhibit the growth of A549 cancer cells in a dose and time-dependent manner. Furthermore, compound 8 could trigger autophagy and apoptosis, but not obviously induce necrosis under the stimulatory condition. Therefore, 8 can be used as autophagy activator to investigate the regulatory mechanism of autophagy and may offer a new candidate for the treatment of lung cancer.
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Affiliation(s)
- Na Li
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Jinan 250100, PR China
| | - GuoJing Qu
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Jinan 250100, PR China
| | - JingNa Xue
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Jinan 250100, PR China
| | - Xiao Li
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Jinan 250100, PR China
| | - Xuan Zhao
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Jinan 250100, PR China
| | - YeHao Yan
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - DongFang Gao
- Institute of Medical Science, The Second Hospital of Shandong University, Jinan 250033, PR China
| | - Lu Zhang
- Institute of Medical Science, The Second Hospital of Shandong University, Jinan 250033, PR China
| | - Peng Wang
- Institute of Medical Science, The Second Hospital of Shandong University, Jinan 250033, PR China
| | - Ming Zhang
- Institute of Medical Science, The Second Hospital of Shandong University, Jinan 250033, PR China
| | - BaoXiang Zhao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - JunYing Miao
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Jinan 250100, PR China
| | - ZhaoMin Lin
- Institute of Medical Science, The Second Hospital of Shandong University, Jinan 250033, PR China.
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29
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Wang LL, Battini N, Bheemanaboina RRY, Zhang SL, Zhou CH. Design and synthesis of aminothiazolyl norfloxacin analogues as potential antimicrobial agents and their biological evaluation. Eur J Med Chem 2019; 167:105-123. [PMID: 30769240 DOI: 10.1016/j.ejmech.2019.01.072] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 01/21/2019] [Accepted: 01/28/2019] [Indexed: 10/27/2022]
Abstract
A series of aminothiazolyl norfloxacin analogues as a new type of potential antimicrobial agents were synthesized and screened for their antimicrobial activities. Most of the prepared compounds exhibited excellent inhibitory efficiencies. Especially, norfloxacin analogue II-c displayed superior antimicrobial activities against K. pneumoniae and C. albicans with MIC values of 0.005 and 0.010 mM to reference drugs, respectively. This compound not only showed broad antimicrobial spectrum, rapid bactericidal efficacy and strong enzymes inhibitory potency including DNA gyrase and chitin synthase (CHS), low toxicity against mammalian cells and no obvious propensity to trigger the development of bacterial resistance, but also exerted efficient membrane permeability, and could effectively intercalate into K. pneumoniae DNA to form a steady supramolecular complex, which might block DNA replication to exhibit their powerful antimicrobial activity. Quantum chemical studies were also performed to explain the high antimicrobial activities. Molecular docking showed that compound II-c could bind with gyrase-DNA and topoisomerase IV-DNA through hydrogen bonds and π-π stacking.
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Affiliation(s)
- Liang-Liang Wang
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Narsaiah Battini
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Rammohan R Yadav Bheemanaboina
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Shao-Lin Zhang
- School of Pharmaceutical Sciences, Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chongqing University, Chongqing, 401331, PR China.
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China.
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30
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Hu YY, Yadav Bheemanaboina RR, Battini N, Zhou CH. Sulfonamide-Derived Four-Component Molecular Hybrids as Novel DNA-Targeting Membrane Active Potentiators against Clinical Escherichia coli. Mol Pharm 2019; 16:1036-1052. [DOI: 10.1021/acs.molpharmaceut.8b01021] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuan-Yuan Hu
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Rammohan R. Yadav Bheemanaboina
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Narsaiah Battini
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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Sun H, Ansari MF, Battini N, Bheemanaboina RRY, Zhou CH. Novel potential artificial MRSA DNA intercalators: synthesis and biological evaluation of berberine-derived thiazolidinediones. Org Chem Front 2019. [DOI: 10.1039/c8qo01180j] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Novel berberine-derived thiazolidinediones as potential artificial DNA intercalators were synthesized, and the preliminary mechanism suggested that active compound 6b could intercalate into MRSA DNA.
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Affiliation(s)
- Hang Sun
- Institute of Bioorganic & Medicinal Chemistry
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Mohammad Fawad Ansari
- Institute of Bioorganic & Medicinal Chemistry
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Narsaiah Battini
- Institute of Bioorganic & Medicinal Chemistry
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Rammohan R. Yadav Bheemanaboina
- Institute of Bioorganic & Medicinal Chemistry
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
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Maddili SK, Li ZZ, Kannekanti VK, Bheemanaboina RRY, Tuniki B, Tangadanchu VKR, Zhou CH. Azoalkyl ether imidazo[2,1- b ]benzothiazoles as potentially antimicrobial agents with novel structural skeleton. Bioorg Med Chem Lett 2018; 28:2426-2431. [DOI: 10.1016/j.bmcl.2018.06.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 06/08/2018] [Accepted: 06/10/2018] [Indexed: 12/30/2022]
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Li D, Bheemanaboina RRY, Battini N, Tangadanchu VKR, Fang XF, Zhou CH. Novel organophosphorus aminopyrimidines as unique structural DNA-targeting membrane active inhibitors towards drug-resistant methicillin-resistant Staphylococcus aureus. MEDCHEMCOMM 2018; 9:1529-1537. [PMID: 30288226 DOI: 10.1039/c8md00301g] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 07/29/2018] [Indexed: 12/18/2022]
Abstract
A series of novel unique structural organophosphorus aminopyrimidines were developed as potential DNA-targeting membrane active inhibitors through an efficient one-pot procedure from aldehydes, phosphonate and aminopyrimidine. The biological assay revealed that some of the prepared compounds displayed antibacterial activities. In particular, imidazole derivative 2c exhibited more potent inhibitory activity against MRSA with an MIC value of 4 μg mL-1 in comparison with the clinical drugs chloromycin and norfloxacin. Experiments revealed that the active molecule 2c had the ability to rapidly kill the tested strains without obviously triggering the development of bacterial resistance, showed low toxicity to L929 cells and could disturb the cell membrane. The molecular docking study discovered that compound 2c could bind with DNA gyrase via hydrogen bonds and other weak interactions. Further exploration disclosed that the active molecule 2c could also effectively intercalate into MRSA DNA and form a steady 2c-DNA supramolecular complex, which might further block DNA replication to exert powerful antibacterial effects.
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Affiliation(s)
- Di Li
- Institute of Bioorganic & Medicinal Chemistry , Key Laboratory of Applied Chemistry of Chongqing Municipality , School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , PR China . ; ; Tel: +86 23 68254967
| | - Rammohan R Yadav Bheemanaboina
- Institute of Bioorganic & Medicinal Chemistry , Key Laboratory of Applied Chemistry of Chongqing Municipality , School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , PR China . ; ; Tel: +86 23 68254967
| | - Narsaiah Battini
- Institute of Bioorganic & Medicinal Chemistry , Key Laboratory of Applied Chemistry of Chongqing Municipality , School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , PR China . ; ; Tel: +86 23 68254967
| | - Vijai Kumar Reddy Tangadanchu
- Institute of Bioorganic & Medicinal Chemistry , Key Laboratory of Applied Chemistry of Chongqing Municipality , School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , PR China . ; ; Tel: +86 23 68254967
| | - Xian-Fu Fang
- Institute of Bioorganic & Medicinal Chemistry , Key Laboratory of Applied Chemistry of Chongqing Municipality , School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , PR China . ; ; Tel: +86 23 68254967
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry , Key Laboratory of Applied Chemistry of Chongqing Municipality , School of Chemistry and Chemical Engineering , Southwest University , Chongqing 400715 , PR China . ; ; Tel: +86 23 68254967
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Novel carbazole-triazole conjugates as DNA-targeting membrane active potentiators against clinical isolated fungi. Eur J Med Chem 2018; 155:579-589. [DOI: 10.1016/j.ejmech.2018.06.022] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 05/09/2018] [Accepted: 06/08/2018] [Indexed: 11/20/2022]
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Wang YN, Bheemanaboina RRY, Cai GX, Zhou CH. Novel purine benzimidazoles as antimicrobial agents by regulating ROS generation and targeting clinically resistant Staphylococcus aureus DNA groove. Bioorg Med Chem Lett 2018; 28:1621-1628. [DOI: 10.1016/j.bmcl.2018.03.046] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Revised: 02/28/2018] [Accepted: 03/17/2018] [Indexed: 01/19/2023]
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Wang YN, Bheemanaboina RRY, Gao WW, Kang J, Cai GX, Zhou CH. Discovery of Benzimidazole-Quinolone Hybrids as New Cleaving Agents toward Drug-Resistant Pseudomonas aeruginosa DNA. ChemMedChem 2018. [PMID: 29512892 DOI: 10.1002/cmdc.201700739] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A series of benzimidazole-quinolone hybrids as new potential antimicrobial agents were designed and synthesized. Bioactive assays indicated that some of the prepared compounds exhibited potent antibacterial and antifungal activities. Notably, 2-fluorobenzyl derivative 5 b (ethyl 7-chloro-6-fluoro-1-[[1-[(2-fluorophenyl)methyl]benzimidazol-2-yl]methyl]-4-oxo-quinoline-3-carboxylate) showed remarkable antimicrobial activity against resistant Pseudomonas aeruginosa and Candida tropicalis isolated from infected patients. Active molecule 5 b could not only rapidly kill the tested strains, but also exhibit low toxicity toward Hep-2 cells. It was more difficult to trigger the development of bacterial resistance of P. aeruginosa against 5 b than that against norfloxacin. Molecular docking demonstrated that 5 b could effectively bind with topoisomerase IV-DNA complexes, and quantum chemical studies theoretically elucidated the good antimicrobial activity of compound 5 b. Preliminary experimental reaction mechanism exploration suggested that derivative 5 b could not intercalate into DNA isolated from drug-resistant P. aeruginosa, but was able to cleave DNA effectively, which might further block DNA replication to exert powerful bioactivities. In addition, compound 5 b is a promising antibacterial agent with membrane disruption abilities.
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Affiliation(s)
- Ya-Nan Wang
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P.R. China
| | - Rammohan R Yadav Bheemanaboina
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P.R. China
| | - Wei-Wei Gao
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P.R. China
| | - Jie Kang
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P.R. China
| | - Gui-Xin Cai
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P.R. China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P.R. China
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Novel naphthalimide nitroimidazoles as multitargeting antibacterial agents against resistant Acinetobacter baumannii. Future Med Chem 2018; 10:711-724. [DOI: 10.4155/fmc-2017-0160] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Aim: The increasing emergence of resistant bacteria imposed an urgent request to discover novel antibacterial agents. This work was to develop naphthalimide nitroimidazoles as potentially antibacterial agents. Results/methodology: Compound 9e showed the strong antibacterial activity (minimal inhibitory concentration = 0.013 μmol/ml) against resistant Acinetobacter baumannii (A. baumannii) with rapid killing effect and no obvious triggering of the development of resistance. Its combination use with chloromycin, norfloxacin or clinafloxacin improved the antibacterial potency. It could not only effectively permeate membrane of resistant A. baumannii bacteria, but also intercalate into resistant A. baumannii DNA to form 9e–DNA complex. The interaction with bacterial DNA gyrase B was driven by hydrogen bonds. Conclusion: Compound 9e should be a potentially multitargeting antibacterial agent against resistant A. baumannii.
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Zhang GB, Maddili SK, Tangadanchu VKR, Gopala L, Gao WW, Cai GX, Zhou CH. Discovery of natural berberine-derived nitroimidazoles as potentially multi-targeting agents against drug-resistant Escherichia coli. Sci China Chem 2017. [DOI: 10.1007/s11426-017-9169-4] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Chen YY, Gopala L, Bheemanaboina RRY, Liu HB, Cheng Y, Geng RX, Zhou CH. Novel Naphthalimide Aminothiazoles as Potential Multitargeting Antimicrobial Agents. ACS Med Chem Lett 2017; 8:1331-1335. [PMID: 29259757 DOI: 10.1021/acsmedchemlett.7b00452] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 12/01/2017] [Indexed: 12/13/2022] Open
Abstract
A series of novel naphthalimide aminothiazoles were developed for the first time and evaluated for their antimicrobial activity. Some prepared compounds possessed good inhibitory activity against the tested bacteria and fungi. Noticeably, the piperazine derivative 4d displayed superior antibacterial activity against MRSA and Escherichia coli with MIC values of 4 and 8 μg/mL, respectively, to reference drugs. The most active compound 4d showed low toxicity against mammalian cells with no obvious triggering of the development of bacterial resistance, and it also possessed rapid bactericidal efficacy and efficient membrane permeability. Preliminarily investigations revealed that compound 4d could not only bind with gyrase-DNA complex through hydrogen bonds but could effectively intercalate into MRSA DNA to form 4d-DNA supramolecular complex, which might be responsible for the powerful bioactivity. Further transportation behavior evaluation indicated that molecule 4d could be effectively stored and carried by human serum albumin, and the hydrophobic interactions and hydrogen bonds played important roles in the binding process.
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Affiliation(s)
- Ying-Ying Chen
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Lavanya Gopala
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Rammohan R. Yadav Bheemanaboina
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Han-Bo Liu
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yu Cheng
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Rong-Xia Geng
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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