1
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Muhammed MT, Kuyucuklu G, Kaynak-Onurdag F, Aki-Yalcin E. Synthesis, Antimicrobial Activity, and Molecular Modeling Studies of
Some Benzoxazole Derivatives. LETT DRUG DES DISCOV 2022. [DOI: 10.2174/1570180819666220408133643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
The need to develop novel antimicrobial agents is apparent as infectious diseases
are increasing and resistance is rapidly developing against the drugs used in the treatment.
Objective:
This study aimed at the synthesis, antimicrobial susceptibility testing, and computational elucidation
of the mechanism of action of benzoxazole derivatives. It also aimed to compare the results obtained
in this study with the previous studies by our group. This would pave the way for designing novel
molecules with better antimicrobial activity. The other goal was pharmacophore analysis and in silico
ADMET analysis of them.
Methods:
In this study, synthesis, antimicrobial susceptibility testing, molecular docking, pharmacophore
analysis, and ADMET prediction were carried out.
Results:
The antimicrobial activity studies demonstrated that the synthesized compounds were active
against standard strains and clinical isolates at high concentrations. Then, the antimicrobial testing results
were compared to similar benzoxazoles tested by our group previously. Benzoxazole derivatives without
a methylene bridge between oxazole and phenyl ring were found to be more active than those with the
methylene bridge. This was also confirmed by molecular modeling undertaken in this study. The computational
results indicated that the antibacterial activity could be achieved by DNA gyrase inhibition.
Pharmacophore analysis showed that hydrogen bond acceptor (HBA), hydrogen bond donor (HBD), and
hydrophobicity features would contribute to the inhibition. In addition, in silico ADMET property investigation
of the compounds exhibited that they had the desired pharmacokinetics.
Conclusion:
Although antibacterial activity by inhibiting DNA gyrase is selective, the synthesized compounds
were active at much higher concentrations than the standards. Therefore, in prospective antimicrobial
studies, it is better to focus on benzoxazole derivatives without the methylene bridge. Since the
compounds had suitable in silico ADMET properties, screening them against the other pharmacologic
activities should be carried out. It is recommended to support the molecular modeling results with in vitro
or in vivo studies.
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Affiliation(s)
- Muhammed Tilahun Muhammed
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Suleyman Demirel University, Isparta, Turkey
- Department of Basic Biotechnology, Institute of Biotechnology, Ankara University, Ankara, Turkey
| | - Gulcan Kuyucuklu
- Department of Medical Microbiology, Faculty of Medicine, Trakya University, Edirne, Turkey
| | - Fatma Kaynak-Onurdag
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Trakya University, Edirne, Turkey
| | - Esin Aki-Yalcin
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
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2
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Nguyen HT, Nguyen TH, Pham DD, Nguyen CT, Tran PH. A green approach for the synthesis of 2-substituted benzoxazoles and benzothiazoles via coupling/cyclization reactions. Heliyon 2021; 7:e08309. [PMID: 34820534 PMCID: PMC8601991 DOI: 10.1016/j.heliyon.2021.e08309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 10/10/2021] [Accepted: 10/29/2021] [Indexed: 11/20/2022] Open
Abstract
We have developed the green method for the synthesis of benzoxazoles and benzothiazoles with moderate to good yields using imidazolium chlorozincate (II) ionic liquid supported into Fe3O4 nanoparticles (LAIL@MNP) under solvent-free sonication. The reaction was performed under mild conditions and only produced water as a sole byproduct. The reactions under solvent-free sonication showed advantages of faster reaction rate (30 min) and high yields of the products (up to 90%). Moreover, the LAIL@MNP material was easily separated from the reaction mixture and can be recycled for five consecutive runs with a slight decrease in its catalytic performance (from 82 to 73%).
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Affiliation(s)
- Hai Truong Nguyen
- Department of Organic Chemistry, Faculty of Chemistry, University of Science, Ho Chi Minh City, Viet Nam
- Vietnam National University, Ho Chi Minh City, Viet Nam
| | - Trinh Hao Nguyen
- Department of Organic Chemistry, Faculty of Chemistry, University of Science, Ho Chi Minh City, Viet Nam
- Vietnam National University, Ho Chi Minh City, Viet Nam
| | - Dung Duc Pham
- Faculty of Chemistry, Ho Chi Minh City University of Education, Viet Nam
| | - Cong Tien Nguyen
- Faculty of Chemistry, Ho Chi Minh City University of Education, Viet Nam
| | - Phuong Hoang Tran
- Department of Organic Chemistry, Faculty of Chemistry, University of Science, Ho Chi Minh City, Viet Nam
- Vietnam National University, Ho Chi Minh City, Viet Nam
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3
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George S, Sreekumar K. Heterogeneous palladium (II)‐complexed dendronized polymer: A rare palladium catalyst for the one‐pot synthesis of 2‐arylbenzoxazoles. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.6083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Smitha George
- Department of Applied Chemistry Cochin University of Science and Technology Kochi India
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4
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Song X, Yang R, Xiao Q. Recent Advances in the Synthesis of Heterocyclics via Cascade Cyclization of Propargylic Alcohols. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001142] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xian‐Rong Song
- Institute of Organic Chemistry Jiangxi Science & Technology Normal University Key Laboratory of Organic Chemistry Nanchang 330013 People's Republic of China
| | - Ruchun Yang
- Institute of Organic Chemistry Jiangxi Science & Technology Normal University Key Laboratory of Organic Chemistry Nanchang 330013 People's Republic of China
| | - Qiang Xiao
- Institute of Organic Chemistry Jiangxi Science & Technology Normal University Key Laboratory of Organic Chemistry Nanchang 330013 People's Republic of China
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5
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Tang Y, Li M, Gao H, Rao G, Mao Z. Efficient Cu-catalyzed intramolecular O-arylation for synthesis of benzoxazoles in water. RSC Adv 2020; 10:14317-14321. [PMID: 35498497 PMCID: PMC9051899 DOI: 10.1039/d0ra00570c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 03/28/2020] [Indexed: 12/28/2022] Open
Abstract
An efficient method was developed for synthesis of benzoxazoles by Cu-catalyzed intramolecular O-arylation of o-halobenzanilides in water. This strategy provides several advantages, such as high yields, water as a green solvent and functional groups tolerance. An efficient method was developed for synthesis of benzoxazoles by Cu-catalyzed intramolecular O-arylation of o-halobenzanilides in water.![]()
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Affiliation(s)
- Yanling Tang
- College of Pharmaceutical Science, Yunnan University of Chinese Medicine Kunming 650500 P.R. China +86 871 65918232 +86 871 65918232
| | - Minxin Li
- College of Pharmaceutical Science, Yunnan University of Chinese Medicine Kunming 650500 P.R. China +86 871 65918232 +86 871 65918232
| | - Hui Gao
- College of Pharmaceutical Science, Yunnan University of Chinese Medicine Kunming 650500 P.R. China +86 871 65918232 +86 871 65918232
| | - Gaoxiong Rao
- College of Pharmaceutical Science, Yunnan University of Chinese Medicine Kunming 650500 P.R. China +86 871 65918232 +86 871 65918232
| | - Zewei Mao
- College of Pharmaceutical Science, Yunnan University of Chinese Medicine Kunming 650500 P.R. China +86 871 65918232 +86 871 65918232
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6
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7
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Naikwade A, Jagadale M, Kale D, Gajare S, Rashinkar G. Magnetic Nanoparticle Decorated N-Heterocyclic Carbene–Nickel Complex with Pendant Ferrocenyl Group for C–H Arylation of Benzoxazole. Catal Letters 2018. [DOI: 10.1007/s10562-018-2514-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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8
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Tang L, Yang Z, Sun T, Zhang D, Ma X, Rao W, Zhou Y. Unexpected Decarboxylation-Triggered o
-Hydroxyl-Controlled Redox Condensation of Phenylglycines with 2-Nitrophenols in Aqueous Media. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800586] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Lin Tang
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang Henan 464000 People's Republic of China
- Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the Sourth of Henan; Xinyang Henan 464000 People's Republic of China
| | - Zhen Yang
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang Henan 464000 People's Republic of China
| | - Tian Sun
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang Henan 464000 People's Republic of China
| | - Di Zhang
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang Henan 464000 People's Republic of China
| | - Xiantao Ma
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang Henan 464000 People's Republic of China
| | - Weihao Rao
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang Henan 464000 People's Republic of China
| | - Yuqiang Zhou
- College of Chemistry and Chemical Engineering; Xinyang Normal University; Xinyang Henan 464000 People's Republic of China
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9
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Safaei E, Alaji Z, Panahi F, Wojtczak A, Jagličić JZ. Synthesis and characterization of a novel oxo-bridged binuclear iron( iii) complex: its catalytic application in the synthesis of benzoxazoles using benzyl alcohol in water. NEW J CHEM 2018. [DOI: 10.1039/c8nj00921j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A novel oxo-bridged binuclear iron(iii) complex was found to be an efficient catalyst in the synthesis of benzoxazoles from benzyl alcohols.
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Affiliation(s)
- Elham Safaei
- Department of Chemistry
- College of Sciences
- Shiraz University
- Shiraz
- Iran
| | - Zahra Alaji
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan
- Iran
| | - Farhad Panahi
- Department of Chemistry
- College of Sciences
- Shiraz University
- Shiraz
- Iran
| | | | - Janez Zvonko Jagličić
- Institute of Mathematics
- Physics and Mechanics & Faculty of Civil and Geodetic Engineering
- University of Ljubljana
- Ljubljana
- Slovenia
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10
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Nguyen TB, Retailleau P. Elemental Sulfur-Promoted Oxidative Rearranging Coupling between o-Aminophenols and Ketones: A Synthesis of 2-Alkyl benzoxazoles under Mild Conditions. Org Lett 2017; 19:3887-3890. [DOI: 10.1021/acs.orglett.7b01775] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Thanh Binh Nguyen
- Institut de Chimie des Substances
Naturelles, CNRS UPR 2301, Université Paris-Sud, Université
Paris-Saclay, 1, avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Pascal Retailleau
- Institut de Chimie des Substances
Naturelles, CNRS UPR 2301, Université Paris-Sud, Université
Paris-Saclay, 1, avenue de la Terrasse, 91198 Gif-sur-Yvette, France
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11
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12
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Mondal J, Ghorai A, Singh SK, Saha R, Patra GK. Synthesis, structure, photophysical and catalytic properties of CuI–Iodide complexes of di-imine ligands. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2015.12.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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13
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Ertan-Bolelli T, Yildiz İ, Ozgen-Ozgacar S. Synthesis, molecular docking and antimicrobial evaluation of novel benzoxazole derivatives. Med Chem Res 2016. [DOI: 10.1007/s00044-015-1499-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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14
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Ghorai A, Mondal J, Patra GK. Photoluminescent mixed ligand complexes of CuX (X=Cl, Br, I) with PPh3 and a polydentate imino-pyridyl ligand – Syntheses, structural variations and catalytic property. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.05.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Song XR, Qiu YF, Song B, Hao XH, Han YP, Gao P, Liu XY, Liang YM. BF3·Et2O-Promoted Cleavage of the Csp–Csp2 Bond of 2-Propynolphenols/Anilines: Route to C2-Alkenylated Benzoxazoles and Benzimidazoles. J Org Chem 2015; 80:2263-71. [DOI: 10.1021/jo502761x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Xian-Rong Song
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yi-Feng Qiu
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Bo Song
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xin-Hua Hao
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Ya-Ping Han
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Pin Gao
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xue-Yuan Liu
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yong-Min Liang
- State Key Laboratory
of Applied Organic
Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
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16
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Banerjee S, Payra S, Saha A, Sereda G. ZnO nanoparticles: a green efficient catalyst for the room temperature synthesis of biologically active 2-aryl-1,3-benzothiazole and 1,3-benzoxazole derivatives. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.123] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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17
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Chou PH, Liu TC, Lin YL. Monitoring of xenobiotic ligands for human estrogen receptor and aryl hydrocarbon receptor in industrial wastewater effluents. JOURNAL OF HAZARDOUS MATERIALS 2014; 277:13-19. [PMID: 24680543 DOI: 10.1016/j.jhazmat.2014.02.049] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 02/26/2014] [Accepted: 02/28/2014] [Indexed: 06/03/2023]
Abstract
Industrial wastewater contains a variety of toxic substances, which may severely contaminate the aquatic environment if discharged without adequate treatment. In this study, effluents from a thin film transistor liquid crystal display wastewater treatment plant and the receiving water were analyzed by bioassays and liquid chromatography-tandem mass spectrometry to investigate the presence of estrogenic compounds, aryl hydrocarbon receptor (AhR) agonists, and genotoxicants. Xenobiotic AhR agonists were frequently detected and, in particular, strong AhR agonist activity and genotoxicity were found in the suspended solids of the aeration tank outflow. The high AhR agonist activity in the final effluent (FE) and the downstream river water suggested that the treatment plant failed to remove the wastewater-related AhR agonists. In contrast, although significant estrogenic potency could be detected in raw wastewater or effluents from different treatment processes, the FE and the receiving river water exhibited no or weak estrogenicity. Instrumental analysis showed that bisphenol A was often detected in water samples. However, the investigated estrogenic compounds could only account for a small portion of the estrogenicity in the collected samples. Therefore, further investigation is necessary to identify the major estrogenic compounds and AhR agonist contaminants in the wastewater effluents.
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Affiliation(s)
- Pei-Hsin Chou
- Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan; Sustainable Environment Research Laboratories, National Cheng Kung University, Tainan 70101, Taiwan.
| | - Tong-Cun Liu
- Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan; Sustainable Environment Research Laboratories, National Cheng Kung University, Tainan 70101, Taiwan
| | - Yi-Ling Lin
- Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan; Sustainable Environment Research Laboratories, National Cheng Kung University, Tainan 70101, Taiwan
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18
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Chou PH, Liu TC, Ko FC, Liao MW, Yeh HM, Yang TH, Wu CT, Chen CH, Tsai TY. Occurrence of aryl hydrocarbon receptor agonists and genotoxic compounds in the river systems in Southern Taiwan. CHEMOSPHERE 2014; 107:257-264. [PMID: 24411837 DOI: 10.1016/j.chemosphere.2013.12.052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 12/02/2013] [Accepted: 12/18/2013] [Indexed: 06/03/2023]
Abstract
Water and sediment samples from river systems located in Southern Taiwan were investigated for the presence of aryl hydrocarbon receptor (AhR) agonists and genotoxicants by a combination of recombinant cell assays and gas chromatography-mass spectrometry analysis. AhR agonist activity and genotoxic response were frequently detected in samples collected during different seasons. In particular, dry-season water and sediment samples from Erren River showed strong AhR agonist activity (201-1423 ng L(-1) and 1374-5631 ng g(-1) β-naphthoflavone equivalents) and high genotoxic potential. Although no significant correlation was found between AhR agonist activity and genotoxicity, potential genotoxicants in sample extracts were suggested to be causative agents for yeast growth inhibition in the AhR-responsive reporter gene assay. After high performance liquid chromatography fractionation, AhR agonist candidates were detected in several fractions of Erren River water and sediment extracts, while possible genotoxicants were only found in water extracts. In addition, polycyclic aromatic hydrocarbons, the typical contaminants showing high AhR binding affinity, were only minor contributors to the AhR agonist activity detected in Erren River sediment extracts. Our findings displayed the usefulness of bioassays in evaluating the extent of environmental contamination, which may be helpful in reducing the chances of false-negative results obtained from chemical analysis of conventional contaminants. Further research will be undertaken to identify major candidates for xenobiotic AhR agonists and genotoxicants to better protect the aquatic environments in Taiwan.
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Affiliation(s)
- Pei-Hsin Chou
- Department of Environmental Engineering, National Cheng Kung University, Tainan, Taiwan.
| | - Tong-Cun Liu
- Department of Environmental Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Fung-Chi Ko
- National Museum of Marine Biology and Aquarium, Pingtung, Taiwan; Institute of Marine Biodiversity and Evolutionary Biology, National Dong Hwa University, Pingtung, Taiwan
| | - Mong-Wei Liao
- Department of Environmental Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Hsiao-Mei Yeh
- Department of Environmental Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Tse-Han Yang
- Department of Environmental Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Chun-Ting Wu
- Department of Environmental Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Chien-Hsun Chen
- Department of Environmental Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Tsung-Ya Tsai
- Department of Environmental Engineering, National Cheng Kung University, Tainan, Taiwan
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19
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Curitol M, Ragas X, Nonell S, Pizarro N, Encinas MV, Rojas P, Zanocco RP, Lemp E, Günther G, Zanocco AL. Solvent and Media Effects on the Photophysics of Naphthoxazole Derivatives. Photochem Photobiol 2013; 89:1327-34. [DOI: 10.1111/php.12133] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Accepted: 07/02/2013] [Indexed: 11/30/2022]
Affiliation(s)
- Manuel Curitol
- Facultad de Ciencias Químicas y Farmacéuticas; Departamento de Química Orgánica y Fisicoquímica; Universidad de Chile; Santiago Chile
| | - Xavier Ragas
- Grup d'Enginyeria Molecular; Institut Químic de Sarrià; Universitat Ramon Llull; Barcelona España
| | - Santi Nonell
- Grup d'Enginyeria Molecular; Institut Químic de Sarrià; Universitat Ramon Llull; Barcelona España
| | - Nancy Pizarro
- Facultad de Ecología y Recursos Naturales; Departamento de Ciencias Químicas; Universidad Andrés Bello; Santiago Chile
| | - María V. Encinas
- Facultad de Química y Biología; Universidad de Santiago de Chile; Santiago Chile
| | - Pedro Rojas
- Facultad de Ciencias Químicas y Farmacéuticas; Departamento de Química Orgánica y Fisicoquímica; Universidad de Chile; Santiago Chile
| | - Renzo P. Zanocco
- Facultad de Ciencias Químicas y Farmacéuticas; Departamento de Química Orgánica y Fisicoquímica; Universidad de Chile; Santiago Chile
| | - Else Lemp
- Facultad de Ciencias Químicas y Farmacéuticas; Departamento de Química Orgánica y Fisicoquímica; Universidad de Chile; Santiago Chile
| | - Germán Günther
- Facultad de Ciencias Químicas y Farmacéuticas; Departamento de Química Orgánica y Fisicoquímica; Universidad de Chile; Santiago Chile
| | - Antonio L. Zanocco
- Facultad de Ciencias Químicas y Farmacéuticas; Departamento de Química Orgánica y Fisicoquímica; Universidad de Chile; Santiago Chile
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Jadhav J, Gaikwad V, Kurane R, Salunkhe R, Rashinkar G. Intramolecular O-arylation route to 2-substituted benzoxazoles mediated by ferrocene tethered polymer supported ionic liquid phase catalyst. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.02.028] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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21
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Zhang XZ, Zhou WJ, Yang M, Wang JX, Bai L. Microwave-Assisted Synthesis of Benzothiazole Derivatives using Glycerol as Green Solvent. JOURNAL OF CHEMICAL RESEARCH 2012. [DOI: 10.3184/174751912x13400085970187] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A rapid method has been developed for the synthesis of benzothiazoles via the condensation of 2-aminothiophenol with aldehydes under CEM-focused microwave irradiation conditions. The reaction used glycerol as a green solvent without any catalyst, rendering this methodology valuable from both economic and environmental points of view.
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Affiliation(s)
- Xia-Zhong Zhang
- Key Laboratory of Fruit Waste Treatment and Resource Recycling of the Sichuan Provincial College & College of Chemistry and Chemical Engineering, Neijiang Normal University, Sichuan 641112, P. R. China
| | - Wen-Jun Zhou
- Key Laboratory of Fruit Waste Treatment and Resource Recycling of the Sichuan Provincial College & College of Chemistry and Chemical Engineering, Neijiang Normal University, Sichuan 641112, P. R. China
| | - Min Yang
- Key Laboratory of Fruit Waste Treatment and Resource Recycling of the Sichuan Provincial College & College of Chemistry and Chemical Engineering, Neijiang Normal University, Sichuan 641112, P. R. China
| | - Jin-Xian Wang
- Institute of Chemistry and Chemical Engineering, Northwest Normal University, 967 Anning Road (E), Lanzhou 730070, P. R. China
| | - Lin Bai
- Institute of Green Chemistry Experiment and Teaching, Lanzhou City University, Lanzhou, P. R. China
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22
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Microwave-assisted one-pot synthesis of benzothiazole and benzoxazole libraries as analgesic agents. J CHEM SCI 2012. [DOI: 10.1007/s12039-012-0251-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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23
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Catalyst-free synthesis of coumarin-, quinolone- and pyridine-annulated oxazole derivatives. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.01.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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24
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Sharghi H, Aberi M, Doroodmand MM. One-pot synthesis of 2-arylbenzimidazole, 2-arylbenzothiazole and 2-arylbenzoxazole derivatives using vanadium(IV)–salen complex as homogeneous catalyst and vanadium(IV)–salen complex nanoparticles immobilized onto silica as a heterogeneous nanocatalyst. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2012. [DOI: 10.1007/s13738-011-0045-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Peng J, Zong C, Ye M, Chen T, Gao D, Wang Y, Chen C. Direct transition-metal-free intramolecular C–O bond formation: synthesis of benzoxazole derivatives. Org Biomol Chem 2011; 9:1225-30. [DOI: 10.1039/c0ob00454e] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Wang B, Zhang Y, Li P, Wang L. An Efficient and Practical Synthesis of Benzoxazoles from Acyl Chlorides and 2-Aminophenols Catalyzed by Lewis Acid In(OTf)3 under Solvent-Free Reaction Conditions. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.201090287] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Kruszynski R, Trzesowska-Kruszynska A. Halogen, hydrogen and electrostatic interactions in 2-amino-5-chloro-1,3-benzoxazol-3-ium nitrate and 2-amino-5-chloro-1,3-benzoxazol-3-ium perchlorate. Acta Crystallogr C 2010; 66:o449-54. [DOI: 10.1107/s0108270110029008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2010] [Accepted: 07/20/2010] [Indexed: 11/10/2022] Open
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Tao K, Zheng J, Liu Z, Shen W, Zhang J. Facile synthesis of benzoxazoles from 1,1-dibromoethenes. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.04.071] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hayashi M, Adachi K, Michigami K. Simple Three Steps Synthesis of Potential Medicine for Metabolic Syndrome. HETEROCYCLES 2010. [DOI: 10.3987/com-10-s(e)45] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Chen Y, Qian L, Zhang W, Han B. Efficient Aerobic Oxidative Synthesis of 2‐Substituted Benzoxazoles, Benzothiazoles, and Benzimidazoles Catalyzed by 4‐Methoxy‐TEMPO. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200803381] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yong‐Xing Chen
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou 730000 (P. R. China), Fax: (+86) 931‐891‐2582
| | - Ling‐Feng Qian
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou 730000 (P. R. China), Fax: (+86) 931‐891‐2582
| | - Wei Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou 730000 (P. R. China), Fax: (+86) 931‐891‐2582
| | - Bing Han
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou 730000 (P. R. China), Fax: (+86) 931‐891‐2582
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Chen Y, Qian L, Zhang W, Han B. Efficient Aerobic Oxidative Synthesis of 2‐Substituted Benzoxazoles, Benzothiazoles, and Benzimidazoles Catalyzed by 4‐Methoxy‐TEMPO. Angew Chem Int Ed Engl 2008; 47:9330-3. [DOI: 10.1002/anie.200803381] [Citation(s) in RCA: 284] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yong‐Xing Chen
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou 730000 (P. R. China), Fax: (+86) 931‐891‐2582
| | - Ling‐Feng Qian
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou 730000 (P. R. China), Fax: (+86) 931‐891‐2582
| | - Wei Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou 730000 (P. R. China), Fax: (+86) 931‐891‐2582
| | - Bing Han
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou 730000 (P. R. China), Fax: (+86) 931‐891‐2582
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Bonnamour J, Bolm C. Iron-Catalyzed Intramolecular O-Arylation: Synthesis of 2-Aryl Benzoxazoles. Org Lett 2008; 10:2665-7. [DOI: 10.1021/ol800744y] [Citation(s) in RCA: 156] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Julien Bonnamour
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52056 Aachen, Germany
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52056 Aachen, Germany
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Arisoy M, Temiz-Arpaci O, Yildiz I, Kaynak-Onurdag F, Aki E, Yalcin I, Abbasoglu U. Synthesis, antimicrobial activity and QSAR studies of 2,5-disubstituted benzoxazoles. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2008; 19:589-612. [PMID: 18853304 DOI: 10.1080/10629360802348738] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In this study, a new series of 2,5-disubstituted benzoxazoles was synthesized and their structures were elucidated by elemental analysis, MASS, (1)H-NMR, (13)C-NMR and IR spectral data. Newly and previously synthesized 2,5-disubstituted benzoxazole derivatives were evaluated for antibacterial and antifungal activity against standard strains and their drug-resistant isolates. Microbiological results showed that the compounds presented a large spectrum of activity having MIC values of 250-7.8 microg mL(-1) against the tested microorganisms. Among the newly synthesized derivatives 3-22, compound 11 was the most active against Candida krusei out of all; however, it was one dilution less potent than standard drug fluconazole. In addition, all the new and previous compounds were more active than standard drugs ampicillin trihydrate and rifampicin against Pseudomonas aeruginosa and its gentamicin-resistant isolate. The 2D-QSAR (Quantitative Structure-Activity Relationship) analysis of a set of newly and previously synthesized benzoxazoles tested for growth inhibitory activity against methicillin-resistant Staphylococcus aureus (MRSA) was also performed by using multivariable regression analysis. The activity contributions for substituent effects of these compounds were determined from the correlation equation for predictions of the lead optimization.
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Affiliation(s)
- M Arisoy
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Ankara University, Ankara, Turkey
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