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Hu Z, Dong H, Si Z, Zhao Y, Liang Y. Synthesis and Antibacterial Activity of Novel Triazolo[4,3- a]pyrazine Derivatives. Molecules 2023; 28:7876. [PMID: 38067606 PMCID: PMC10708386 DOI: 10.3390/molecules28237876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
Infectious diseases pose a major challenge to human health, and there is an urgent need to develop new antimicrobial agents with excellent antibacterial activity. A series of novel triazolo[4,3-a]pyrazine derivatives were synthesized and their structures were characterized using various techniques, such as melting point, 1H and 13C nuclear magnetic resonance spectroscopy, mass spectrometry, and elemental analysis. All the synthesized compounds were evaluated for in vitro antibacterial activity using the microbroth dilution method. Among all the tested compounds, some showed moderate to good antibacterial activities against both Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli strains. In particular, compound 2e exhibited superior antibacterial activities (MICs: 32 μg/mL against Staphylococcus aureus and 16 μg/mL against Escherichia coli), which was comparable to the first-line antibacterial agent ampicillin. In addition, the structure-activity relationship of the triazolo[4,3-a]pyrazine derivatives was preliminarily investigated.
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Affiliation(s)
| | | | | | | | - Yuanwei Liang
- Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, China; (Z.H.)
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2
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Gao J, Hou H, Gao F. Current scenario of quinolone hybrids with potential antibacterial activity against ESKAPE pathogens. Eur J Med Chem 2023; 247:115026. [PMID: 36577217 DOI: 10.1016/j.ejmech.2022.115026] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/04/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022]
Abstract
The ESKAPE (Escherichia coli/E. coli, Staphylococcus aureus/S. aureus, Klebsiella pneumonia/K. pneumoniae, Acinetobacter Baumannii/A. baumannii, Pseudomonas aeroginosa/P. aeroginosa and Enterobacter spp.) pathogens, which could escape or evade common therapies through diverse antimicrobial resistance mechanisms and biofilm formation, are deemed as highly virulent bacteria responsible for life-threatening diseases, calling for novel chemotherapeutics. Quinolones including 2-quinolones and 4-quinolones have occupied a propitious place in drug design and development due to their excellent pharmacological profiles. Quinolones especially fluoroquinolones could inhibit the synthesis of nucleic acid of ESKAPE pathogens, leading to the rupture of bacterial chromosome. However, the resistance of ESKAPE pathogens to quinolones develops rapidly and spreads widely. Accordingly, it has become increasingly urgent to enhance the potency of quinolones against both drug-susceptible and drug-resistant ESKAPE pathogens. Quinolone hybrids can bind with different drug targets simultaneously and have been considered as useful prototypes to circumvent drug resistance. The purpose of this review is to summarize the current scenario (2018-present) of quinolone hybrids with potential antibacterial activity against ESKAPE pathogens, together with the structure-activity relationships and mechanisms of action to facilitate further rational design of more effective candidates.
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Affiliation(s)
- Jingyue Gao
- Key Laboratory for Experimental Teratology of the Ministry of Education and Center for Experimental Nuclear Medicine, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Haodong Hou
- Key Laboratory for Experimental Teratology of the Ministry of Education and Center for Experimental Nuclear Medicine, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Feng Gao
- Key Laboratory for Experimental Teratology of the Ministry of Education and Center for Experimental Nuclear Medicine, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China.
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3
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Devasia J, Nizam A, V. L. V. Azole-Based Antibacterial Agents: A Review on Multistep Synthesis Strategies and Biology. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2021.1938615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Jyothis Devasia
- Department of Chemistry, CHRIST (Deemed to be University), Bangalore, Karnataka, India
| | - Aatika Nizam
- Department of Chemistry, CHRIST (Deemed to be University), Bangalore, Karnataka, India
| | - Vasantha V. L.
- Department of Life Sciences, CHRIST (Deemed to be University), Bangalore, Karnataka, India
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Luo J, Yang P, Wang Z, Zhang L, Zhang X, Xie X. Synthesis, Antibacterial Evaluation and Molecular Docking Studies of 1,3,4‐Oxadiazole‐2(3H)‐Thione‐Norfloxacin Hybrids as Potent Antibacterial Agents. ChemistrySelect 2022. [DOI: 10.1002/slct.202201565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jia‐Bao Luo
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening School of Pharmaceutical Sciences Southern Medical University Guangzhou 510515 China
| | - Ping Yang
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China Guangdong Detection Center of Microbiology Institute of Microbiology Guangdong Academy of Sciences Guangzhou 510070 China
- Guangdong Demay New Materials Technology Co. Ltd. Guangzhou 510070 China
| | - Zi‐Zhou Wang
- School of Chemistry and Chemical Engineering Guangzhou University 230 Wai Huan Xi Road, Guangzhou Higher Education Mega Center Guangzhou 510006 China
| | - Li‐Lei Zhang
- College of Chemistry and Chemical Engineering Luoyang Normal University, Luoyang Henan 471000 China
| | - Xin‐Guo Zhang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening School of Pharmaceutical Sciences Southern Medical University Guangzhou 510515 China
| | - Xiao‐Bao Xie
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China Guangdong Detection Center of Microbiology Institute of Microbiology Guangdong Academy of Sciences Guangzhou 510070 China
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Yang P, Luo JB, Wang ZZ, Zhang LL, Xie XB, Shi QS, Zhang XG. Synthesis and in vitro antibacterial activity of N-acylarylhydrazone-ciprofloxacin hybrids as novel fluoroquinolone derivatives. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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6
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Zang W, Li D, Gao L, Gao S, Hao P, Bian H. The antibacterial potential of ciprofloxacin hybrids against Staphylococcus aureus. Curr Top Med Chem 2022; 22:1020-1034. [PMID: 35301951 DOI: 10.2174/1568026622666220317162132] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 02/01/2022] [Accepted: 02/13/2022] [Indexed: 11/22/2022]
Abstract
Staphylococcus aureus (S. aureus), an important pathogen of both humans and animals, is able to cause a variety of infections at any site of the body. The evolution of S. aureus resistance is notorious, and the widespread of drug-resistant S. aureus, especially methicillin-resistant S. aureus (MRSA), has made the treatment difficult in recent decades. Nowadays, S. aureus is among the leading causes of bacterial infections, creating an urgent need for the development of novel antibacterial agents. Ciprofloxacin, characterized by high clinical efficacy, is a broad-spectrum antibacterial agent with frequency of prescription for various Gram-positive and Gram-negative pathogens, many of which are resistant to a wide range of antibiotics. However, the long-term and widespread use of this antibiotic has led to the emergence of ciprofloxacin-resistant pathogens, and ciprofloxacin-resistant S. aureus has been noted in clinical practice. Ciprofloxacin hybrids have been recognized as advanced chemical entities to simultaneously modulate multiple drug targets in bacteria, so ciprofloxacin hybrids have the potential to overcome drug resistance. The present review provides an overview of ciprofloxacin hybrids with anti-S. aureus potential that have been reported in the last decade with emphasis on their structure-activity relationships and mechanisms of action.
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Affiliation(s)
- Wenhua Zang
- Zhang Zhongjing College of Traditional Chinese Medicine, Nanyang Institute of Technology, Nanyang 473004, Henan, China;
- Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Nanyang 473004, Henan, China
| | - Danxia Li
- Zhang Zhongjing College of Traditional Chinese Medicine, Nanyang Institute of Technology, Nanyang 473004, Henan, China;
- Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Nanyang 473004, Henan, China
| | - Li Gao
- Zhang Zhongjing College of Traditional Chinese Medicine, Nanyang Institute of Technology, Nanyang 473004, Henan, China;
- Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Nanyang 473004, Henan, China
| | - Shuang Gao
- Zhang Zhongjing College of Traditional Chinese Medicine, Nanyang Institute of Technology, Nanyang 473004, Henan, China;
- Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Nanyang 473004, Henan, China
| | - Pengfei Hao
- Zhang Zhongjing College of Traditional Chinese Medicine, Nanyang Institute of Technology, Nanyang 473004, Henan, China;
- Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Nanyang 473004, Henan, China
| | - Hua Bian
- Zhang Zhongjing College of Traditional Chinese Medicine, Nanyang Institute of Technology, Nanyang 473004, Henan, China;
- Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Nanyang 473004, Henan, China
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Fluoroquinolones' Biological Activities against Laboratory Microbes and Cancer Cell Lines. Molecules 2022; 27:molecules27051658. [PMID: 35268759 PMCID: PMC8911966 DOI: 10.3390/molecules27051658] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/13/2022] [Accepted: 02/15/2022] [Indexed: 12/02/2022] Open
Abstract
Development of novel derivatives to rein in and fight bacteria have never been more demanding, as microbial resistance strains are alarmingly increasing. A multitude of new fluoroquinolones derivatives with an improved spectrum of activity and/or enhanced pharmacokinetics parameters have been widely explored. Reporting novel antimicrobial agents entails comparing their potential activity to their parent drugs; hence, parent fluoroquinolones have been used in research as positive controls. Given that these fluoroquinolones possess variable activities according to their generation, it is necessary to include parent compounds and market available antibiotics of the same class when investigating antimicrobial activity. Herein, we provide a detailed guide on the in vitro biological activity of fluoroquinolones based on experimental results published in the last years. This work permits researchers to compare and analyze potential fluoroquinolones as positive control agents and to evaluate changes occurring in their activities. More importantly, the selection of fluoroquinolones as positive controls by medicinal chemists when investigating novel FQs analogs must be correlated to the laboratory pathogen inquest for reliable results.
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The Search for New Antibacterial Agents among 1,2,3-Triazole Functionalized Ciprofloxacin and Norfloxacin Hybrids: Synthesis, Docking Studies, and Biological Activity Evaluation. Sci Pharm 2021. [DOI: 10.3390/scipharm90010002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Among all modern antibiotics, fluoroquinolones are well known for their broad spectrums of activity and efficiency toward microorganisms and viruses. However, antibiotic resistance is still a problem, which has encouraged medicinal chemists to modify the initial structures in order to combat resistant strains. Our current work is aimed at synthesizing novel hybrid derivatives of ciprofloxacin and norfloxacin and applying docking studies and biological activity evaluations in order to find active promising molecules. We succeeded in the development of a synthetic method towards 1,2,3-triazole-substituted ciprofloxacin and norfloxacin derivatives. The structure and purity of the obtained compounds were confirmed by 1H NMR, 13C NMR, 19F NMR, LC/MS, UV-, IR- spectroscopy. Docking studies, together with in vitro research against Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, Bacillus subtilis ATCC 6633, Pseudomonas aeruginosa ATCC 27853, Candida albicans NCTC 885-653 revealed compounds in which activity exceeded the initial molecules.
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Ghasedi N, Ahmadi S, Ketabi S, Almasirad A. DFT based QSAR study on quinolone-triazole derivatives as antibacterial agents. J Recept Signal Transduct Res 2021; 42:418-428. [PMID: 34693868 DOI: 10.1080/10799893.2021.1988971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
QSAR modeling was performed on 39 quinolone-triazole derivatives against gram-positive Staphylococcus aureus and gram-negative Pseudomonas aeruginosa bacteria. The molecular structures were optimized using the DFT/B3LYP method and 6-31 G basis set. Molecular descriptors were extracted using quantum mechanical calculations. The hierarchical cluster analysis was performed for a rational subset division. The initial dataset was divided into calibration and validation sets, and modeling was done by stepwise MLR method for each of the two bacteria. Internal and external validation methods confirmed the robustness and predictability of the obtained models. According to the obtained model for S. aureus (R2 = 0.889, R2ext = 0.938, Q2LOO = 0.853), the four descriptors- partial atomic charges for the N1 atom in triazole and C7 of the quinolone nucleus, 4-carbonyl bond length, and 13C-NMR chemical shift of 3-carboxylic acid- were found to be the descriptors controlling the activity. According to the obtained model for P. aeruginosa (R2 = 0.957, R2ext = 0.923, Q2LOO = 0.909), the O atom's partial charge in carbonyl, LUMO-HOMO energy gap, and logP were found to be the descriptors having the highest correlation with the antibacterial activity. Finally, some new compounds with higher activities were designed and proposed.
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Affiliation(s)
- Niloofar Ghasedi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Shahin Ahmadi
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Chemistry, Tehran medical sciences, Islamic Azad University, Tehran, Iran
| | - Sepideh Ketabi
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Chemistry, Tehran medical sciences, Islamic Azad University, Tehran, Iran
| | - Ali Almasirad
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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10
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Cakmak U, Oz-Tuncay F, Basoglu-Ozdemir S, Ayazoglu-Demir E, Demir İ, Colak A, Celik-Uzuner S, Erdem SS, Yildirim N. Synthesis of hydrazine containing piperazine or benzimidazole derivatives and their potential as α-amylase inhibitors by molecular docking, inhibition kinetics and in vitro cytotoxicity activity studies. Med Chem Res 2021. [DOI: 10.1007/s00044-021-02785-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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11
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Synthesis, DFT calculations, biological investigation, molecular docking studies of β-lactam derivatives. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127891] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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12
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Synthesis of 4H-pyrrolo[3,2,1-ij]quinoline-1,2-diones containing a piperazine fragment and study of their inhibitory properties against protein kinases. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2834-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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13
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Hassan AY, Abdel‐Aziem A, Hussain AO. Synthesis of some novel pyrazolopyrimidotriazepine, pyrazolotriazolopyrimidine, and pyrazolopyrimidotetrazine derivatives. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3744] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Aisha Y. Hassan
- Department of Chemistry, Faculty of Science (Girl's Branch)Al‐Azhar University P.O. Box 11754, Yousef Abbas Street Nasr City, Cairo Egypt
| | - Anhar Abdel‐Aziem
- Department of Chemistry, Faculty of Science (Girl's Branch)Al‐Azhar University P.O. Box 11754, Yousef Abbas Street Nasr City, Cairo Egypt
| | - Aisha O. Hussain
- Department of Chemistry, Faculty of Science (Girl's Branch)Al‐Azhar University P.O. Box 11754, Yousef Abbas Street Nasr City, Cairo Egypt
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14
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Suaifan GA, Mohammed AA. Fluoroquinolones structural and medicinal developments (2013–2018): Where are we now? Bioorg Med Chem 2019; 27:3005-3060. [DOI: 10.1016/j.bmc.2019.05.038] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 05/22/2019] [Accepted: 05/25/2019] [Indexed: 12/11/2022]
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1,2,4-Triazole-quinoline/quinolone hybrids as potential anti-bacterial agents. Eur J Med Chem 2019; 174:1-8. [DOI: 10.1016/j.ejmech.2019.04.033] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 04/05/2019] [Accepted: 04/13/2019] [Indexed: 11/19/2022]
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Gao F, Wang T, Xiao J, Huang G. Antibacterial activity study of 1,2,4-triazole derivatives. Eur J Med Chem 2019; 173:274-281. [PMID: 31009913 DOI: 10.1016/j.ejmech.2019.04.043] [Citation(s) in RCA: 134] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 04/14/2019] [Accepted: 04/15/2019] [Indexed: 12/12/2022]
Abstract
Antibiotics are commonly used to fight against bacterial infections, but bacteria have already been resistant to almost all antibiotics due to abuse of antibiotics. 1,2,4-Triazole derived compounds possess chemotherapeutic effects including potential antibacterial activities against drug-sensitive as well as drug-resistant pathogens. Hybridization displays a high potential to develop novel drugs with the capacity to overcome drug resistance, reduce toxicity and improve pharmacokinetic profiles. More effective antibacterial candidates might be obtained by the hybridization of 1,2,4-triazole with other antibacterial pharmacophores. This review summarizes the recent advances of 1,2,4-triazole derivatives as potential antibacterial compounds, and the structure-activity relationship is also discussed.
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Affiliation(s)
- Feng Gao
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, PR China; Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, PR China; Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai, PR China.
| | - Tengfei Wang
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, PR China
| | - Jiaqi Xiao
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, PR China; Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai, PR China.
| | - Gang Huang
- Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai, PR China.
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Mermer A, Faiz O, Demirbas A, Demirbas N, Alagumuthu M, Arumugam S. Piperazine-azole-fluoroquinolone hybrids: Conventional and microwave irradiated synthesis, biological activity screening and molecular docking studies. Bioorg Chem 2019; 85:308-318. [PMID: 30654222 DOI: 10.1016/j.bioorg.2019.01.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 01/01/2019] [Accepted: 01/06/2019] [Indexed: 01/18/2023]
Abstract
A series of new 1,2,4-triazole and 1,3,4-oxadiazole derivatives was obtained via several steps sequential reactions of phenyl piperazine. Then, these compounds were converted to the corresponding fluoroquinolone hybrids via one pot three component Mannich reaction. All the reactions were examined under conventional and microwave mediated conditions, and optimum conditions were determined. The effect of different solvents and microwave power on microwave prompted reactions was investigated as well. All the newly synthesized compounds were characterized by FTIR, 1H NMR, 13C NMR and EI MS spectral techniques. The antimicrobial activity, DNA gyrase and Topoisomerase IV inhibition potentials were performed. The results obtained showed that fluoroquinolone hybrids possess good antimicrobial activity. Moreover, Fluoroquinolone-azole-piperazine hybrids synthesized in the present study displayed excellent DNA gyrase inhibition. To unveil the interaction mode of compounds to receptor, a molecular docking study was performed. With an average least binding energy of -9.5 kcal/mol, all compounds were found to have remarkable inhibitory potentials against DNA gyrase (E. coli).
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Affiliation(s)
- Arif Mermer
- Karadeniz Technical University, Department of Chemistry 61080 Trabzon, Turkey
| | - Ozlem Faiz
- Recep Tayyip Erdogan University, Department of Chemistry, 53100 Rize, Turkey
| | - Ahmet Demirbas
- Karadeniz Technical University, Department of Chemistry 61080 Trabzon, Turkey
| | - Neslihan Demirbas
- Karadeniz Technical University, Department of Chemistry 61080 Trabzon, Turkey.
| | - Manikandan Alagumuthu
- Dept. of Biotechnology, School of Bio-Sciences and Technology, VIT, Vellore 632014, India
| | - Sivakumar Arumugam
- Dept. of Biotechnology, School of Bio-Sciences and Technology, VIT, Vellore 632014, India
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Gultekin E, Kolcuoglu Y, Akdemir A, Sirin Y, Bektas H, Bekircan O. A Study On Synthesis, Biological Activities and Molecular Modelling of Some Novel Trisubstituted 1,2,4-Triazole Derivatives. ChemistrySelect 2018. [DOI: 10.1002/slct.201801578] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ergun Gultekin
- Department of Chemistry; Faculty of Science; Karadeniz Technical University; 61080 Trabzon Turkey
| | - Yakup Kolcuoglu
- Department of Chemistry; Faculty of Science; Karadeniz Technical University; 61080 Trabzon Turkey
| | - Atilla Akdemir
- Computer-Aided Drug Discovery Laboratory, ; Department of Pharmacology; Faculty of Pharmacy; Bezmialem Vakif University, ; 34093, Fatih, Istanbul Turkey
| | - Yakup Sirin
- Department of Chemistry; Faculty of Science; Karadeniz Technical University; 61080 Trabzon Turkey
| | - Hakan Bektas
- Department of Chemistry; Faculty of Arts and Sciences; Giresun University; 28100 Giresun Turkey
| | - Olcay Bekircan
- Department of Chemistry; Faculty of Science; Karadeniz Technical University; 61080 Trabzon Turkey
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The separation–preconcentration and determination of ultra-trace gold in water and solid samples by dispersive liquid–liquid microextraction using 4-ethyl-1(2-(4-(4-nitrophenyl)piperazin-1-yl)acetyl)thiosemicarbazide) as chelating agent and flame atomic absorption spectrometry. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1333-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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