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Elaaraj I, Raouan SER, Nakkabi A, Es-sounni B, Koraichi I, El moualij N, Fahim M. Synthesis, characterization and antioxidant, antibacterial activity Zn2+, Cu2+, Ni2+ and Co2+, complexes of ligand [2-(thiophen-2-yl)-1-(thiophen-2-ylmethyl)-1H-benzo[d]imidazole]. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Link S, Zhang Y, Heuser S. T3P-mediated microwave-assisted synthesis of oxazolopyridines. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Krause M, Foks H, Augustynowicz-Kopeć E, Napiórkowska A, Szczesio M, Gobis K. Synthesis and Tuberculostatic Activity Evaluation of Novel Benzazoles with Alkyl, Cycloalkyl or Pyridine Moiety. Molecules 2018; 23:molecules23040985. [PMID: 29690646 PMCID: PMC6017942 DOI: 10.3390/molecules23040985] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 04/18/2018] [Accepted: 04/20/2018] [Indexed: 11/21/2022] Open
Abstract
Compounds possessing benzimidazole system exhibit significant antituberculous activity. In order to examine how structure modifications affect tuberculostatic activity, a series of benzazole derivatives were synthesized and screened for their antitubercular activity. The compounds 1–20 were obtained by the reaction between o-diamine, o-aminophenol, or o-aminothiophenol with carboxylic acids or thioamides. The newly synthesized compounds were characterized by IR, 1H-NMR, 13C-NMR spectra, and elemental analysis. Synthesized benzazoles were evaluated for their tuberculostatic activity toward Mycobacterium tuberculosis strains. Quantum chemical calculations were performed to study the molecular geometry and the electronic structure of benzimidazoles GK-151B, 4, 6, and benzoxazole 11, using the Gaussian 03W software (Gaussian, Inc., Wallingford, CT, USA). Three-dimensional structure of benzimidazoles 1–3, MC-9, and GK-151B was determined by ab initio calculation using Gamess-US software. The activity of the received benzimidazoles was moderate or good. All of the benzoxazoles and benzothiazoles demonstrated much lower activity. Benzoxazoles were less active by about 50 times, and benzothiazole by 100 times than the benzimidazole analogs. Quantum chemical calculations showed differences in the distribution of electrostatic potential in the benzazole system of benzimidazoles and benzoxazoles. Three-dimensional structure calculations revealed how the parity of the alkyl substituent at the C2 position impacts the activity. Benzimidazole system is essential for the antituberculosis activity that is associated with the presence of the imine nitrogen atom in N-1 position. Its replacement by an oxygen or sulfur atom results in a decrease of the activity. The parity of the alkyl substituent at the C-2 position also modifies the activity.
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Affiliation(s)
- Malwina Krause
- Department of Organic Chemistry, Medical University of Gdańsk, 107 Gen. Hallera Ave., 80416 Gdańsk, Poland.
| | - Henryk Foks
- Department of Organic Chemistry, Medical University of Gdańsk, 107 Gen. Hallera Ave., 80416 Gdańsk, Poland.
| | - Ewa Augustynowicz-Kopeć
- Department of Microbiology, Institute of Tuberculosis and Pulmonary Diseases, 26 Płocka Str., 01138 Warsaw, Poland.
| | - Agnieszka Napiórkowska
- Department of Microbiology, Institute of Tuberculosis and Pulmonary Diseases, 26 Płocka Str., 01138 Warsaw, Poland.
| | - Małgorzata Szczesio
- Institute of General and Ecological Chemistry, Technical University of Łodź, Żeromskiego 116 Str., 90924 Łódź, Poland.
| | - Katarzyna Gobis
- Department of Organic Chemistry, Medical University of Gdańsk, 107 Gen. Hallera Ave., 80416 Gdańsk, Poland.
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Krause M, Foks H, Gobis K. Pharmacological Potential and Synthetic Approaches of Imidazo[4,5-b]pyridine and Imidazo[4,5-c]pyridine Derivatives. Molecules 2017; 22:molecules22030399. [PMID: 28273868 PMCID: PMC6155225 DOI: 10.3390/molecules22030399] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 03/02/2017] [Indexed: 12/23/2022] Open
Abstract
The structural resemblance between the fused imidazopyridine heterocyclic ring system and purines has prompted biological investigations to assess their potential therapeutic significance. They are known to play a crucial role in numerous disease conditions. The discovery of their first bioactivity as GABAA receptor positive allosteric modulators divulged their medicinal potential. Proton pump inhibitors, aromatase inhibitors, and NSAIDs were also found in this chemical group. Imidazopyridines have the ability to influence many cellular pathways necessary for the proper functioning of cancerous cells, pathogens, components of the immune system, enzymes involved in carbohydrate metabolism, etc. The collective results of biochemical and biophysical properties foregrounded their medicinal significance in central nervous system, digestive system, cancer, inflammation, etc. In recent years, new preparative methods for the synthesis of imidazopyridines using various catalysts have been described. The present manuscript to the best of our knowledge is the complete compilation on the synthesis and medicinal aspects of imidazo[4,5-b]pyridines and imidazo[4,5-c]pyridines reported from the year 2000 to date, including structure–activity relationships.
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Affiliation(s)
- Malwina Krause
- Department of Organic Chemistry, Medical University of Gdańsk, 107 Gen. Hallera Ave., 80-416 Gdańsk, Poland.
| | - Henryk Foks
- Department of Organic Chemistry, Medical University of Gdańsk, 107 Gen. Hallera Ave., 80-416 Gdańsk, Poland.
| | - Katarzyna Gobis
- Department of Organic Chemistry, Medical University of Gdańsk, 107 Gen. Hallera Ave., 80-416 Gdańsk, Poland.
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Wang L, Yang Z, Yang M, Zhang R, Kuai C, Cui X. Iridium-catalyzed direct C–H amidation of anilines with sulfonyl azides: easy access to 1,2-diaminobenzenes. Org Biomol Chem 2017; 15:8302-8307. [DOI: 10.1039/c7ob01899a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The Ir(iii)-catalyzed C–H amidation of anilines with azides is achieved, and the 2-pyrimidyl and sulfonyl moieties could be removed, offeringortho-diaminobenzenes.
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Affiliation(s)
- Lianhui Wang
- Engineering Research Center of Molecular Medicine
- Ministry of Education
- Key Laboratory of Xiamen Marine and Gene Drugs
- Institute of Molecular Medicine and School of Biomedical Sciences
- Huaqiao University
| | - Zi Yang
- Engineering Research Center of Molecular Medicine
- Ministry of Education
- Key Laboratory of Xiamen Marine and Gene Drugs
- Institute of Molecular Medicine and School of Biomedical Sciences
- Huaqiao University
| | - Mengqi Yang
- Engineering Research Center of Molecular Medicine
- Ministry of Education
- Key Laboratory of Xiamen Marine and Gene Drugs
- Institute of Molecular Medicine and School of Biomedical Sciences
- Huaqiao University
| | - Rongyi Zhang
- Engineering Research Center of Molecular Medicine
- Ministry of Education
- Key Laboratory of Xiamen Marine and Gene Drugs
- Institute of Molecular Medicine and School of Biomedical Sciences
- Huaqiao University
| | - Changsheng Kuai
- Engineering Research Center of Molecular Medicine
- Ministry of Education
- Key Laboratory of Xiamen Marine and Gene Drugs
- Institute of Molecular Medicine and School of Biomedical Sciences
- Huaqiao University
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine
- Ministry of Education
- Key Laboratory of Xiamen Marine and Gene Drugs
- Institute of Molecular Medicine and School of Biomedical Sciences
- Huaqiao University
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Kaur N. Insight into Microwave-Assisted Synthesis of Benzo Derivatives of Five-Membered N,N-Heterocycles. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2013.827725] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali University, Banasthali, Rajasthan, India
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Affiliation(s)
- Navjeet Kaur
- a Department of Chemistry , Banasthali University , Banasthali , Rajasthan , India
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Dallinger D, Lehmann H, Moseley JD, Stadler A, Kappe CO. Scale-Up of Microwave-Assisted Reactions in a Multimode Bench-Top Reactor. Org Process Res Dev 2011. [DOI: 10.1021/op200090k] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Doris Dallinger
- Christian Doppler Laboratory for Microwave Chemistry (CDLMC) and Institute of Chemistry, Karl-Franzens University Graz, Heinrichstrasse 28, A-80010 Graz, Austria
| | - Hansjörg Lehmann
- Preparation Laboratories, Global Discovery Chemistry, Novartis Institute for BioMedical Research, Basel, Switzerland
| | - Jonathan D. Moseley
- AstraZeneca, Process Research and Development, Avlon Works, Severn Road, Hallen, Bristol BS10 7ZE, U.K
| | | | - C. Oliver Kappe
- Christian Doppler Laboratory for Microwave Chemistry (CDLMC) and Institute of Chemistry, Karl-Franzens University Graz, Heinrichstrasse 28, A-80010 Graz, Austria
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Santos AFLOM, Ribeiro da Silva MAV. Diaminobenzenes: An Experimental and Computational Study. J Phys Chem B 2011; 115:4939-48. [DOI: 10.1021/jp200670s] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ana Filipa L. O. M. Santos
- Centro de Investigação em Química, Department of Chemistry and Biochemistry, Faculty of Science, University of Porto, Rua do Campo Alegre, 687, P-4169-007 Porto, Portugal
| | - Manuel A. V. Ribeiro da Silva
- Centro de Investigação em Química, Department of Chemistry and Biochemistry, Faculty of Science, University of Porto, Rua do Campo Alegre, 687, P-4169-007 Porto, Portugal
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Ojha B, Das G. Role of hydrophobic and polar interactions for BSA–amphiphile composites. Chem Phys Lipids 2011; 164:144-50. [DOI: 10.1016/j.chemphyslip.2010.12.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2010] [Revised: 08/27/2010] [Accepted: 12/17/2010] [Indexed: 11/30/2022]
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Sirko SM, Gorobets NY, Musatov VI, Desenko SM. Generation of 500-member library of 10-alkyl-2-R(1),3-R(2)-4,10-dihydrobenzo[4,5]imidazo[1,2-alpha]pyrimidin-4-ones. Molecules 2009; 14:5223-34. [PMID: 20032888 PMCID: PMC6254725 DOI: 10.3390/molecules14125223] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2009] [Revised: 12/03/2009] [Accepted: 12/14/2009] [Indexed: 11/16/2022] Open
Abstract
Representative benzimidazopyrimidinones were previously reported to be intercalating antitumor agents. In this work, we used 2-substituted 4,10-dihydrobenzo [4,5]imidazo[1,2-alpha]pyrimidin-4-ones for their diversification by regioselective alkylation. Under the conditions established, the alkylation gave 10-alkyl derivatives which permitted the parallel generation of a 500-member library of the title compounds.
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Affiliation(s)
| | - Nikolay Yu. Gorobets
- Department of Chemistry of Heterocyclic Compounds, SSI “Institute for Single Crystals” of National Academy of Sciences of Ukraine, Lenin Ave. 60, Kharkiv 61001,Ukraine
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Damm M, Glasnov TN, Kappe CO. Translating High-Temperature Microwave Chemistry to Scalable Continuous Flow Processes. Org Process Res Dev 2009. [DOI: 10.1021/op900297e] [Citation(s) in RCA: 115] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Markus Damm
- Christian Doppler Laboratory for Microwave Chemistry (CDLMC) and Institute of Chemistry, Karl-Franzens-University Graz, Heinrichstrasse 28, A-8010 Graz, Austria
| | - Toma N. Glasnov
- Christian Doppler Laboratory for Microwave Chemistry (CDLMC) and Institute of Chemistry, Karl-Franzens-University Graz, Heinrichstrasse 28, A-8010 Graz, Austria
| | - C. Oliver Kappe
- Christian Doppler Laboratory for Microwave Chemistry (CDLMC) and Institute of Chemistry, Karl-Franzens-University Graz, Heinrichstrasse 28, A-8010 Graz, Austria
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Likhanova NV, Martínez-Palou R, Veloz MA, Matías DJ, Reyes-Cruz VE, Höpfl H, Olivares O. Microwave-assisted synthesis of 2-(2-pyridyl)azoles. Study of their corrosion inhibiting properties. J Heterocycl Chem 2007. [DOI: 10.1002/jhet.5570440123] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Martínez-Palou R. Advances in Microwave-Assisted Combinatorial Chemistry Without Polymer-Supported Reagents. Mol Divers 2006; 10:435-62. [PMID: 16896542 DOI: 10.1007/s11030-006-9021-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2005] [Accepted: 01/19/2006] [Indexed: 11/28/2022]
Abstract
Combinatorial methodologies have dramatically changed the chemical research and discovery process, offering an unlimited source of new molecule entities to be screened for activity. The application of microwave irradiation in Combinatorial Chemistry and high-throughput synthesis has become increasingly popular. By taking advantage of this energy source, compound libraries for lead generation can be assembled in a fraction of time required by conventional thermal heating. This review focuses on the advances in developing synthetic methodologies in microwave without polymer-supported reagents suitable for combinatorial chemistry, including the advances in microwave-assisted fluorous synthesis technology.
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Affiliation(s)
- Rafael Martínez-Palou
- Programa de Ingeniería Molecular, Instituto Mexicano del Petróleo, México, DF, México.
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