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Zhang Y, Wu C, Wan X, Wang C. Direct synthesis of 3,5‐diaryl‐1,2,
4‐oxadiazoles
using 1‐(2‐oxo‐2‐arylethyl)pyridin‐1‐iums with benzamidines. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4354] [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)
- Yue Zhang
- School of Chemistry and Chemical Engineering Yangzhou University Yangzhou China
| | - Chengjun Wu
- School of Chemistry and Chemical Engineering Yangzhou University Yangzhou China
| | - Xinyi Wan
- School of Chemistry and Chemical Engineering Yangzhou University Yangzhou China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering Yangzhou University Yangzhou China
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2
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Kara YS, Ünsal M, Tekin N, Eşme A. Synthesis of 4-(4-ethyl-phenyl)-3-(4-methyl-phenyl)-1,2,4-oxadiazol-5(4H)-one and 4-(4-ethyl-phenyl)-3-(4-methyl-phenyl)-1,2,4-oxadiazole-5(4H)-thione and solvent effects on their infrared spectra in organic solvents. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 251:119424. [PMID: 33461130 DOI: 10.1016/j.saa.2020.119424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/23/2020] [Accepted: 12/30/2020] [Indexed: 06/12/2023]
Abstract
In the present study novel 4-(4-ethyl-phenyl)-3-(4-methyl-phenyl)-1,2,4-oxadiazol-5(4H)-one (compound (4)) and 4-(4-ethyl-phenyl)-3-(4-methyl-phenyl)-1,2,4-oxadiazole-5(4H)-thione (compound (5)) were synthesized. These oxadiazole ring derivatives were characterized by IR, 1H NMR, 13C NMR and HRMS analyses. The solvent effects on CO, CN and CS stretching vibrational frequencies (ν(CO), ν(CN) and ν(CS)) of synthesized compounds were investigated experimentally using attenuated total reflection (ATR) infrared spectroscopy and compared with the theoretical results assigned using the potential energy distribution (PED) contributions. Furthermore, the ν(CO), ν(CN) and ν(CS) of compound (4) and compound (5) were correlated with empirical solvent parameters such as the solvent acceptor numbers, the Swain equation, the Kirkwood-Bauer-Magat equation, and the linear solvation energy relationships. Apart from the linear effects investigated in similar studies, solvent-induced vibrational shifts were investigated using the quadratic equation. The prediction capabilities of empirical solvent parameters were statistically compared. It was found that the linear solvation energy relationships show better correlation than the other empirical solvent parameters. Additionally, the quadratic equation provided more accurate predictions for the vibrational frequency locations than the Swain and the linear solvation energy relationships equations.
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Affiliation(s)
- Yesim S Kara
- Kocaeli University, Science and Art Faculty, Department of Chemistry, Umuttepe Campus, 41001 Kocaeli, Turkey.
| | - Mustafa Ünsal
- Kocaeli University, Science and Art Faculty, Department of Chemistry, Umuttepe Campus, 41001 Kocaeli, Turkey
| | - Nalan Tekin
- Kocaeli University, Science and Art Faculty, Department of Chemistry, Umuttepe Campus, 41001 Kocaeli, Turkey
| | - Aslı Eşme
- Kocaeli University, Department of Elementary Science Education, Umuttepe Campus, 41001 Kocaeli, Turkey
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3
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Vinaya K, Chandrashekara GK, Shivaramu PD. One-pot synthesis of 3,5-diaryl substituted-1,2,4-oxadiazoles using gem-dibromomethylarenes. CAN J CHEM 2019. [DOI: 10.1139/cjc-2018-0333] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
1,2,4-Oxadiazole is one of the most promising heterocyclic ring systems in medicinal chemistry. In the present paper, we report the method for an efficient one-pot synthesis of 3,5-diaryl substituted 1,2,4-oxadiazoles using a two-component reaction of gem-dibromomethylarenes with amidoximes in good yields. In this method, gem-dibromomethylarenes are used as benzoic acid equivalents for the efficient synthesis of aryl-substituted 1,2,4-oxadiazoles. It is anticipated that this methodology will have versatile applications in the practical syntheses of various molecules of both medicinal and material chemistry importance.
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Affiliation(s)
- Kambappa Vinaya
- Department of Chemistry, Government First Grade College, Kadur — 577548, India
| | | | - Prasanna D. Shivaramu
- Department of Nanotechnology, Visvesvaraya Technological University, Bengaluru Region, Muddenahalli, Chikkaballapur — 562101, India
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4
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Cao X, Yao Z, Dou F, Zhang Y, Qiu Y, Zhao S, Xu X, Liu X, Liu BF, Chen Y, Zhang G. Synthesis and Biological Evaluation of Sigma-1 (σ 1 ) Receptor Ligands Based on Phenyl-1,2,4-oxadiazole Derivatives. Chem Biodivers 2019; 16:e1800599. [PMID: 30549193 DOI: 10.1002/cbdv.201800599] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 12/10/2018] [Indexed: 12/17/2023]
Abstract
In this study, a series of phenyl-1,2,4-oxadiazole derivatives were synthesized and evaluated for anti-allodynic activity. Structure-activity relationship studies identified 1-{4-[3-(2,4-dichlorophenyl)-1,2,4-oxadiazol-5-yl]butyl}piperidine (39) with excellent affinity for the σ1 receptor and selectivity for the σ2 receptor, with poor activity to other central nervous system neurotransmitter receptors and transporters associated with pain. Compound 39 exhibited dose-dependent efficacy in suppressing the formalin-induced flinching and attenuating mechanical allodynia in chronic constriction injury-induced neuropathic rats. These results suggest that compound 39 exerts potent antihyperalgesic activity and could be considered as a promising candidate for treating neuropathic pain.
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Affiliation(s)
- Xudong Cao
- Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Zhongyuan Yao
- Jiangsu Nhwa Pharmaceutical Co., Ltd., 69 Democratic South Road, Xuzhou, 221116, P. R. China
| | - Fei Dou
- Jiangsu Nhwa Pharmaceutical Co., Ltd., 69 Democratic South Road, Xuzhou, 221116, P. R. China
| | - Yifang Zhang
- Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Yinli Qiu
- Jiangsu Nhwa Pharmaceutical Co., Ltd., 69 Democratic South Road, Xuzhou, 221116, P. R. China
| | - Song Zhao
- Jiangsu Nhwa Pharmaceutical Co., Ltd., 69 Democratic South Road, Xuzhou, 221116, P. R. China
| | - Xiangqing Xu
- Jiangsu Nhwa Pharmaceutical Co., Ltd., 69 Democratic South Road, Xuzhou, 221116, P. R. China
| | - Xin Liu
- Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Bi-Feng Liu
- Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Yin Chen
- Jiangsu Nhwa Pharmaceutical Co., Ltd., 69 Democratic South Road, Xuzhou, 221116, P. R. China
- Jiangsu Marine Resources Development Research Institute, Lianyungang, 222005, P. R. China
| | - Guisen Zhang
- Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
- Jiangsu Nhwa Pharmaceutical Co., Ltd., 69 Democratic South Road, Xuzhou, 221116, P. R. China
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5
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Bharadwaj SS, Poojary B, Madan Kumar S, Byrappa K, Nagananda GS, Chaitanya AK, Zaveri K, Yarla NS, Shiralgi Y, Kudva AK, Dhananjaya BL. Design, synthesis and pharmacological studies of some new quinoline Schiff bases and 2,5-(disubstituted-[1,3,4])-oxadiazoles. NEW J CHEM 2017. [DOI: 10.1039/c6nj03913h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
G6P-Ligand (4f) and (5b) interactions as visualized using Chimera (Version 1.8).
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Affiliation(s)
| | - Boja Poojary
- Department of Studies in Chemistry
- Mangalore University
- Mangalagangotri – 574 199
- India
| | - S. Madan Kumar
- PURSE Lab
- Mangalore University
- Mangalagangotri – 574 199
- India
| | - K. Byrappa
- Department of Materials Science
- Mangalore University
- Mangalagangotri – 574 199
- India
| | | | | | - Kunal Zaveri
- Department of Biochemistry/Bioinformatics
- Institute of Science
- GITAM University
- Visakhapatnam
- India
| | - Nagendra Sastry Yarla
- Department of Biochemistry/Bioinformatics
- Institute of Science
- GITAM University
- Visakhapatnam
- India
| | - Yallappa Shiralgi
- BMS R and D Centre
- BMS College of Engineering
- Bangalore – 560 019
- India
| | - Avinash K. Kudva
- Department of Biochemistry
- Mangalore University
- Mangalagangotri – 574 199
- India
| | - B. L. Dhananjaya
- Toxicology and Drug Discovery Unit
- Centre for Emerging Technologies (CET)
- Jain University
- Ramanagara – 562 112
- India
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6
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Synthesis and Cytotoxic Activity of (4-Substituted-benzylidene)-(3-Phenyl-1,2,4-Oxadiazol-5-YL)Methylamines. Pharm Chem J 2016. [DOI: 10.1007/s11094-016-1429-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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7
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Taha M, Ismail NH, Imran S, Selvaraj M, Rahim A, Ali M, Siddiqui S, Rahim F, Khan KM. Synthesis of novel benzohydrazone–oxadiazole hybrids as β-glucuronidase inhibitors and molecular modeling studies. Bioorg Med Chem 2015; 23:7394-404. [DOI: 10.1016/j.bmc.2015.10.037] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 10/22/2015] [Accepted: 10/24/2015] [Indexed: 11/27/2022]
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8
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9
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10
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dos Anjos JV, Neves Filho RA, do Nascimento SC, Srivastava RM, de Melo SJ, Sinou D. Synthesis and cytotoxic profile of glycosyl–triazole linked to 1,2,4-oxadiazole moiety at C-5 through a straight-chain carbon and oxygen atoms. Eur J Med Chem 2009; 44:3571-6. [DOI: 10.1016/j.ejmech.2009.03.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2008] [Revised: 02/27/2009] [Accepted: 03/06/2009] [Indexed: 12/01/2022]
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11
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Drehsen G, Engel J. Structure-Activity Relationships of Thiophene Derivatives of Biological Interest. ACTA ACUST UNITED AC 2007. [DOI: 10.1080/01961778308082453] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Ahmad S, Ngu K, Combs DW, Wu SC, Weinstein DS, Liu W, Chen BC, Chandrasena G, Dorso CR, Kirby M, Atwal KS. Aminoimidazoles as bioisosteres of acylguanidines: novel, potent, selective and orally bioavailable inhibitors of the sodium hydrogen exchanger isoform-1. Bioorg Med Chem Lett 2004; 14:177-80. [PMID: 14684323 DOI: 10.1016/j.bmcl.2003.09.066] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Inhibition of the sodium hydrogen exchanger isoform-1 (NHE-1) has been shown to limit damage to the myocardium under ischemic conditions in animals. While most known NHE-1 inhibitors are acylguanidines, this report describes the design and synthesis of a series of heterocyclic inhibitors of NHE-1 including aminoimidazoles with undiminished in vitro activity and oral bioavailability.
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Affiliation(s)
- Saleem Ahmad
- Bristol-Myers Squibb Pharmaceutical Research Institute, PO Box 4000, Princeton, NJ 08543, USA.
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13
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Gaber AEAM, El-Emary TI, Atalla AA. Thermolysis of 3-phenyl-5-arylamino-1,2,4-oxadiazole and thiadiazole derivatives. HETEROATOM CHEMISTRY 1997; 8:287-291. [DOI: 10.1002/(sici)1098-1071(1997)8:4<287::aid-hc1>3.0.co;2-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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14
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Vikrishchuk NI, Suzdalev KF, Korol'chenko GA, Ryabukhin YI. Synthesis of derivatives of 1,2,4-oxadiazole, 1,2,4-triazole, and 1,3,5-triazine. Pharm Chem J 1995. [DOI: 10.1007/bf02220004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Oussaid B, Moeini L, Garrigues B, Villemin D. SYNTHESE D'OXADIAZOLES ET D'OXAZOLES THIOPHENIQUES. PHOSPHORUS SULFUR 1993. [DOI: 10.1080/10426509308038178] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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17
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Kinast G. Kondensationen mit Oxim-O-sulfonaten, I. Synthese von 2-Amino-4,5-dihydro-4,5-diimino-1H-pyrrol-3-carbonsäureestern. European J Org Chem 1981. [DOI: 10.1002/jlac.198119810906] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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