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Guo M, Yu X, Zhu YZ, Yu Y. From Bench to Bedside: What Do We Know about Imidazothiazole Derivatives So Far? Molecules 2023; 28:5052. [PMID: 37446714 DOI: 10.3390/molecules28135052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/19/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
Imidazothiazole derivatives are becoming increasingly important in therapeutic use due to their outstanding physiological activities. Recently, applying imidazothiazole as the core, researchers have synthesized a series of derivatives with biological effects such as antitumor, anti-infection, anti-inflammatory and antioxidant effects. In this review, we summarize the main pharmacological effects and pharmacological mechanisms of imidazothiazole derivates; the contents summarized herein are intended to advance the research and rational development of imidazothiazole-based drugs in the future.
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Affiliation(s)
- Mu Guo
- School of Pharmacy, Fujian Medical University, Fuzhou 350122, China
- Fujian Center for New Drug Safety Evaluation, Fuzhou 350122, China
| | - Xiangbin Yu
- School of Pharmacy, Fujian Medical University, Fuzhou 350122, China
- Fujian Center for New Drug Safety Evaluation, Fuzhou 350122, China
| | - Yi Zhun Zhu
- School of Pharmacy, Macau University of Science and Technology, Macau 999078, China
| | - Yue Yu
- School of Pharmacy, Fujian Medical University, Fuzhou 350122, China
- Fujian Center for New Drug Safety Evaluation, Fuzhou 350122, China
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2
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Filippini L, Ortner NJ, Kaserer T, Striessnig J. Ca v 1.3-selective inhibitors of voltage-gated L-type Ca 2+ channels: Fact or (still) fiction? Br J Pharmacol 2023; 180:1289-1303. [PMID: 36788128 PMCID: PMC10953394 DOI: 10.1111/bph.16060] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/17/2022] [Accepted: 01/29/2023] [Indexed: 02/16/2023] Open
Abstract
Voltage-gated L-type Ca2+ -channels (LTCCs) are the target of Ca2+ -channel blockers (CCBs), which are in clinical use for the evidence-based treatment of hypertension and angina. Their cardiovascular effects are largely mediated by the Cav 1.2-subtype. However, based on our current understanding of their physiological and pathophysiological roles, Cav 1.3 LTCCs also appear as attractive drug targets for the therapy of various diseases, including treatment-resistant hypertension, spasticity after spinal cord injury and neuroprotection in Parkinson's disease. Since CCBs inhibit both Cav 1.2 and Cav 1.3, Cav 1.3-selective inhibitors would be valuable tools to validate the therapeutic potential of Cav 1.3 channel inhibition in preclinical models. Despite a number of publications reporting the discovery of Cav 1.3-selective blockers, their selectivity remains controversial. We conclude that at present no pharmacological tools exist that are suitable to confirm or refute a role of Cav 1.3 channels in cellular responses. We also suggest essential criteria for a small molecule to be considered Cav 1.3-selective.
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Affiliation(s)
- Ludovica Filippini
- Department of Pharmacology and Toxicology and Center of Molecular BiosciencesUniversity of InnsbruckInnsbruckAustria
- Department of Pharmaceutical Chemistry, Institute of PharmacyUniversity of InnsbruckInnsbruckAustria
| | - Nadine J. Ortner
- Department of Pharmacology and Toxicology and Center of Molecular BiosciencesUniversity of InnsbruckInnsbruckAustria
| | - Teresa Kaserer
- Department of Pharmaceutical Chemistry, Institute of PharmacyUniversity of InnsbruckInnsbruckAustria
| | - Jörg Striessnig
- Department of Pharmacology and Toxicology and Center of Molecular BiosciencesUniversity of InnsbruckInnsbruckAustria
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3
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Singh A, Malhotra D, Singh K, Chadha R, Bedi PMS. Thiazole derivatives in medicinal chemistry: Recent advancements in synthetic strategies, structure activity relationship and pharmacological outcomes. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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4
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Gomha SM, Muhammad ZA, Al-Hussain SA, Zaki MEA, Abdel-aziz HM. Synthesis, Characterization, and Antimicrobial Evaluation of Some New 1,4-Dihydropyridine Hybrid with 1,3,4-Thiadiazole. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2020.1804410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Sobhi M. Gomha
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
- Department of Chemistry, Faculty of Science, Islamic University in Almadinah Almonawara, Almadinah Almonawara, Saudi Arabia
| | - Zeinab A. Muhammad
- National Organization for Drug Control and Research (NODCAR), Giza, Egypt
| | - Sami A. Al-Hussain
- Department of Chemistry, Faculty of Science, Al-Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia
| | - Magdi E. A. Zaki
- Department of Chemistry, Faculty of Science, Al-Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia
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5
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Mahmoud HK, Sayed AR, Abdel-Aziz MM, Gomha SM. Synthesis of New Thiazole Clubbed Imidazo[2,1-b]thiazole Hybrid as Antimycobacterial Agents. Med Chem 2022; 18:1100-1108. [DOI: 10.2174/1573406418666220413095854] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 11/10/2021] [Accepted: 02/01/2022] [Indexed: 11/22/2022]
Abstract
Aims:
The study aims to synthesize bioactive hybrid pharmacophores (thiazole ring and imidazo[2,1-b]thiazole system) by incorporating them to one biological assessment molecular system.
Background:
Literature survey revealed that various imidazo[2,1-b]thiazoles, thiazoles and hydrazones have powerful anti-mycobacterial activity.
Objective:
This study demonstrates the effectiveness of molecular hybridization and the scope for imidazo[2,1-b]thiazole-hydrazone-thiazoles to develop as promising anti-mycobacterial agents.
Method:
Several imidazo[2,1-b]thiazole–hydrazine-thiazoles 5a-g, 7a,b, 9a,b, 11a,b, 13, and 15a,b were generated using a molecular hybridization strategy and assessed against Mycobacterium tuberculosis (ATCC 25618) for their in vitro antituberculous activity.
Result:
Derivative 7b (MIC = 0.98 μg/mL) has shown the most promising anti-mycobacterial activity among the series tested. Brief structure-activity relationship studies found that the thiazole of chlorophenyl or pyridine or coumarin had a significant relation with the anti-mycobacterial activity.
Conclusion:
Promising anti-mycobacterial activity of compound 7b compared with reference drug suggests that this compound may contribute as a lead compound in search of new potential anti-mycobacterial agents.
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Affiliation(s)
- Huda K. Mahmoud
- Department of Chemistry, Faculty of Science, University of Cairo, Giza, Egypt
| | - Abdelwahed R. Sayed
- Department of Chemistry, Faculty of Science, KFU, Hofuf, Saudi Arabia
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-suef, Egypt
| | - Marwa M. Abdel-Aziz
- Regional Center for Mycology and Biotechnology at Al-Azhar University, Egypt
| | - Sobhi M. Gomha
- Department of Chemistry, Faculty of Science, University of Cairo, Giza, Egypt
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah 42351, Saudi Arabia
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6
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Mineyeva IV, Faletrov YV, Starovoitova VA, Shkumatov VM. New 1,4-Dihydropyridines. Optimization of the Synthesis and In Silico Analysis of Biological Activity. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1070428022030034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Karthick R, Velraj G, Pachamuthu MP, Karthikeyan S. Synthesis, spectroscopic, DFT, and molecular docking studies on 1,4-dihydropyridine derivative compounds: a combined experimental and theoretical study. J Mol Model 2021; 28:5. [PMID: 34889990 DOI: 10.1007/s00894-021-04939-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 09/29/2021] [Indexed: 10/19/2022]
Abstract
Dihydropyridines are the most extensively used drugs in the treatment of hypertension. Nifedipine is the prototype of calcium channel blocker. The dihydropyridine derivative compounds of diethyl 4-(4-bromophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate (DHPB), diethyl 4-(furan-2yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate (DHPF), and diethyl-4-phenyl-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate (DHPP) were synthesized using the Hantzsch reaction. The DFT/B3LYP exchange-correlation function was employed to perform quantum chemical calculations such as molecular geometry optimization, vibrational analysis, frontier molecular orbital (FMO), molecular electrostatic potential (MEP), natural bond order (NBO), global reactive descriptors, and Fukui functions to determine the structural characteristics related to biological activity of the compounds. The molecular docking and molecular dynamics were employed to study the binding interaction and stability of protein-ligand complex in the docked site.
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Affiliation(s)
- R Karthick
- Department of Physics, CEG Campus, Anna University, Chennai, 600025, Tamil Nadu, India
| | - G Velraj
- Department of Physics, CEG Campus, Anna University, Chennai, 600025, Tamil Nadu, India.
| | - M P Pachamuthu
- Department of Chemistry, Bannari Amman Institute of Technology, Sathyamangalam, 638401, Tamil Nadu, India
| | - S Karthikeyan
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Samsung Medical Center, Suwon, Republic of Korea
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8
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Chen Z, Jin W, Xia Y, Zhang Y, Xie M, Ma S, Liu C. Aminothiolation of α-Bromocinnamaldehydes to Access Imidazo[2,1-b]thiazoles by Incorporation of Two Distinct Photoinduced Processes. Org Lett 2020; 22:8261-8266. [DOI: 10.1021/acs.orglett.0c02907] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ziren Chen
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Autonomous Region, College of Chemistry, Xinjiang University, Urumqi 830046, P.R. China
| | - Weiwei Jin
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Autonomous Region, College of Chemistry, Xinjiang University, Urumqi 830046, P.R. China
| | - Yu Xia
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Autonomous Region, College of Chemistry, Xinjiang University, Urumqi 830046, P.R. China
| | - Yonghong Zhang
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Autonomous Region, College of Chemistry, Xinjiang University, Urumqi 830046, P.R. China
| | - Mengwei Xie
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Autonomous Region, College of Chemistry, Xinjiang University, Urumqi 830046, P.R. China
| | - Shangchao Ma
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Autonomous Region, College of Chemistry, Xinjiang University, Urumqi 830046, P.R. China
| | - Chenjiang Liu
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Autonomous Region, College of Chemistry, Xinjiang University, Urumqi 830046, P.R. China
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9
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Gomha SM, Edrees MM, Muhammad ZA, Kheder NA, Abu- Melha S, Saad AM. Synthesis, Characterization, and Antimicrobial Evaluation of Some New 1,4-Dihydropyridines-1,2,4-Triazole Hybrid Compounds. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1720751] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Sobhi M. Gomha
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
- Department of Chemistry, Faculty of Science, Islamic University in Almadinah Almonawara, Almadinah Almonawara, Saudi Arabia
| | - Mastoura M. Edrees
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
- Department of Organic Chemistry, National Organization for Drug Control and Research (NODCAR), Giza, Egypt
| | - Zeinab A. Muhammad
- Department of Organic Chemistry, National Organization for Drug Control and Research (NODCAR), Giza, Egypt
| | - Nabila A. Kheder
- Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
| | - Sraa Abu- Melha
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Amirah M. Saad
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Khalid University, Abha, Saudi Arabia
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10
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Shareef MA, Khan I, Babu BN, Kamal A. A Comprehensive Review on the Therapeutic Versatility of Imidazo [2,1-b]thiazoles. Curr Med Chem 2019; 27:6864-6887. [PMID: 31362648 DOI: 10.2174/0929867326666190729152440] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 05/08/2019] [Accepted: 06/19/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Imidazo[2,1-b]thiazole, a well-known fused five-membered hetrocycle is one of the most promising and versatile moieties in the area of medicinal chemistry. Derivatives of imidazo[2,1-b]thiazole have been investigated for the development of new derivatives that exhibit diverse pharmacological activities. This fused heterocycle is also a part of a number of therapeutic agents. OBJECTIVE To review the extensive pharmacological activities of imidazo[2,1-b]thiazole derivatives and the new molecules developed between 2000-2018 and their usefulness. METHOD Thorough literature review of all relevant papers and patents was conducted. CONCLUSION The present review, covering a number of aspects, is expected to provide useful insights in the design of imidazo[2,1-b]thiazole-based compounds and would inspire the medicinal chemists for a comprehensive and target-oriented information to achieve a major breakthrough in the development of clinically viable candidates.
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Affiliation(s)
- Mohd Adil Shareef
- Department of Fluoro-Agrochemicals, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad,
500007 India,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Irfan Khan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India,Organic Synthesis and Process Chemistry Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India
| | - Bathini Nagendra Babu
- Department of Fluoro-Agrochemicals, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad,
500007 India,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ahmed Kamal
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India,Organic Synthesis and Process Chemistry Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India,School of Pharmaceutical Education and Research (SPER), Jamia Hamdard, New Delhi
110062, India
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11
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4-Imidazo[2,1-b]thiazole-1,4-DHPs and neuroprotection: preliminary study in hits searching. Eur J Med Chem 2019; 169:89-102. [PMID: 30861492 DOI: 10.1016/j.ejmech.2019.02.075] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 02/21/2019] [Accepted: 02/27/2019] [Indexed: 12/25/2022]
Abstract
In the present work we describe the synthesis, characterization and evaluation of neuroprotective effects of a focused library of 4-imidazo[2,1-b]thiazole-1,4-dihydropyridines. Furthermore, the new dihydropyridines were subjected to functional in vitro assays in cardiac tissues and vascular smooth muscle to determine their possible selectivity in counteracting the effects of neurodegeneration. In particular the strategy adopted for designing the compounds involves the imidazo[2,1-b]thiazole nucleus. The observed properties show that substituents at C2 and C6 of the bicyclic scaffold are able to influence the cardiovascular parameters and the neuroprotective activity. In comparison to nifedipine, a set of derivatives such as compound 6, showed a neuroprotective profile of particular interest.
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12
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Luo Q, Huang R, Xiao Q, Kong LB, Lin J, Yan SJ. Cascade Reaction of 1,1-Enediamines with 2-Benzylidene-1 H-indene-1,3(2 H)-diones: Selective Synthesis of Indenodihydropyridine and Indenopyridine Compounds. ACS OMEGA 2019; 4:6637-6646. [PMID: 31459789 PMCID: PMC6648820 DOI: 10.1021/acsomega.9b00407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 03/04/2019] [Indexed: 06/10/2023]
Abstract
A concise and environmentally friendly route for the synthesis of diverse indenodihydropyridines (3) via a cascade reaction of 1,1-eneamines (1) with benzylidene-1H-indene-1,3(2H)-diones (BIDs) (2) in ethanol media was developed. The targeted compounds were efficiently obtained by only filtration without any further post-treatment. In the one-step cascade reaction, C-C and C-N bonds were constructed. In addition, when 1,4-dioxane was used as a solvent and the mixture of 1,1-eneamines (1) was refluxed with benzylidene-1H-indene-1,3(2H)-diones (BIDs) (2) for about 12 h, indenopyridine compounds (4) were produced. Two kinds of indenopyridine derivatives 3-4 resulted from alternative solvents and temperatures. The reaction had the following features: mild temperature, atom economy, high yields, and potential biological activity of the product.
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Affiliation(s)
| | | | | | | | - Jun Lin
- E-mail: . Tel/fax: +86 87165031633 (J.L.)
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13
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Evren AE, Yurttas L, Ekselli B, Akalin-Ciftci G. Synthesis and biological evaluation of 5-methyl-4-phenyl thiazole derivatives as anticancer agents. PHOSPHORUS SULFUR 2019. [DOI: 10.1080/10426507.2018.1550642] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Asaf E. Evren
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Anadolu University, Eskişehir, Turkey
| | - Leyla Yurttas
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Anadolu University, Eskişehir, Turkey
| | - Büşra Ekselli
- Faculty of Pharmacy, Department of Biochemistry, Anadolu University, Eskişehir, Turkey
| | - Gülşen Akalin-Ciftci
- Faculty of Pharmacy, Department of Biochemistry, Anadolu University, Eskişehir, Turkey
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14
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Kuang J, Xia Y, Yang A, Zhang H, Su C, Lee D. Copper-catalyzed aminothiolation of terminal alkynes with tunable regioselectivity. Chem Commun (Camb) 2019; 55:1813-1816. [DOI: 10.1039/c8cc09122f] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A simple, mild, and efficient catalytic aminothiolation of terminal alkynes for the synthesis of both 2- and 3-substituted thiazolo[3,2-a]benzimidazoles is established upon catalysis with copper(i), in which complementary regioselectivities could be achieved by using sterically different phenanthroline-based ligands.
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Affiliation(s)
- Jinqiang Kuang
- SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education
- College of Optoelectronic Engineering
- Shenzhen University
- Shenzhen 518060
| | - Yuanzhi Xia
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - An Yang
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Heng Zhang
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Chenliang Su
- SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education
- College of Optoelectronic Engineering
- Shenzhen University
- Shenzhen 518060
| | - Daesung Lee
- Department of Chemistry
- University of Illinois at Chicago
- Chicago
- USA
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15
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Li X, Wang T, Lu YJ, Ji S, Huo Y, Liu B. Copper-catalyzed oxidative multicomponent reaction: synthesis of imidazo fused heterocycles with molecular oxygen. Org Biomol Chem 2018; 16:7143-7151. [PMID: 30091779 DOI: 10.1039/c8ob01532e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An oxidative cascade that involves multicomponent reaction comprising a terminal alkyne, 2-amino N-heterocycle, benzyl or allylic bromide with molecular oxygen, delivering densely functionalized imidazo fused heterocycles, is described. This reaction features a cheap catalyst, a green oxidant, and readily available starting materials, which make the overall synthesis applicable in the quick access to relevant pharmaceutical molecules with imidazole derived heterocycles.
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Affiliation(s)
- Xianwei Li
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center, Guangzhou, 510006, China.
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16
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Santos KS, Sandagorda EMA, Cargnelutti R, Barcellos T, Jacob RG, Alves D, Schumacher RF. Copper-Catalyzed Selective Synthesis of 5-Selanyl-imidazo[2,1-b
]thiazoles. ChemistrySelect 2017. [DOI: 10.1002/slct.201702371] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Kelvin S. Santos
- LASOL - CCQFA -; Universidade Federal de Pelotas - UFPel - P.O. Box; 354 - 96010-310 Pelotas, RS Brazil
| | - Eduardo M. A. Sandagorda
- LASOL - CCQFA -; Universidade Federal de Pelotas - UFPel - P.O. Box; 354 - 96010-310 Pelotas, RS Brazil
| | - Roberta Cargnelutti
- LMI - Departamento de Química; Universidade Federal de Santa Maria - UFSM; 97105-900 Santa Maria, RS Brazil
| | - Thiago Barcellos
- Institute of Biotechnology; University of Caxias do Sul - UCS -; Caxias do Sul, RS Brazil
| | - Raquel G. Jacob
- LASOL - CCQFA -; Universidade Federal de Pelotas - UFPel - P.O. Box; 354 - 96010-310 Pelotas, RS Brazil
| | - Diego Alves
- LASOL - CCQFA -; Universidade Federal de Pelotas - UFPel - P.O. Box; 354 - 96010-310 Pelotas, RS Brazil
| | - Ricardo F. Schumacher
- LASOL - CCQFA -; Universidade Federal de Pelotas - UFPel - P.O. Box; 354 - 96010-310 Pelotas, RS Brazil
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17
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Maurya MR, Rana L, Jangra N, Avecilla F. Bis{cis-[MoO2]} Complexes of 4,6-Diacetyl Resorcinol Bis(hydrazone)and Their Catalytic Application for the Three Components Dynamic Covalent Assembly via Hantzsch Reaction. ChemistrySelect 2017. [DOI: 10.1002/slct.201701629] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mannar R. Maurya
- Department of Chemistry; Indian Institute of Technology Roorkee; Roorkee 247667 India
| | - Lata Rana
- Department of Chemistry; Indian Institute of Technology Roorkee; Roorkee 247667 India
| | - Nancy Jangra
- Department of Chemistry; Indian Institute of Technology Roorkee; Roorkee 247667 India
| | - Fernando Avecilla
- Grupo Xenomar; Centro de Investigacións Científicas Avanzadas (CICA); Departamento de Química; Facultade de Ciencias; Universidade da Coruña, Campus de A Coruña; 15071 A Coruña Spain
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18
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Bin Sayeed I, Garikapati KR, Makani VKK, Nagarajan A, Shareef MA, Alarifi A, Pal-Bhadra M, Kamal A. Development and Biological Evaluation of Imidazothiazole propenones as Tubulin Inhibitors that Effectively Triggered Apoptotic Cell Death in Alveolar Lung Cancer Cell Line. ChemistrySelect 2017. [DOI: 10.1002/slct.201701563] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ibrahim Bin Sayeed
- Medicinal Chemistry and Pharmacology Division; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500007 India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-Indian Institute of Chemical Technology; Hyderabad- 500007 India
| | - Koteswara Rao Garikapati
- Chemical Biology Division; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500007 India
| | | | - Apoorva Nagarajan
- Medicinal Chemistry and Pharmacology Division; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500007 India
| | - Mohd Adil Shareef
- Medicinal Chemistry and Pharmacology Division; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500007 India
| | - Abdullah Alarifi
- Catalytic Chemistry Research Chair; Chemistry Department; College of Science; King Saud University; Riyadh 11451 Saudi Arabia
| | - Manika Pal-Bhadra
- Chemical Biology Division; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500007 India
| | - Ahmed Kamal
- Medicinal Chemistry and Pharmacology Division; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500007 India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-Indian Institute of Chemical Technology; Hyderabad- 500007 India
- Catalytic Chemistry Research Chair; Chemistry Department; College of Science; King Saud University; Riyadh 11451 Saudi Arabia
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19
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Microwave-assisted green synthesis of new imidazo[2,1-b]thiazole derivatives and their antimicrobial, antimalarial, and antitubercular activities. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-2985-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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20
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Rezvanian A. An expedient synthesis strategy to the 1,4-dihydropyridines and pyrido[1,2-a]quinoxalines: iodine catalyzed one-pot four-component domino reactions. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.08.049] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Design and synthesis of novel 4-substituted 1,4-dihydropyridine derivatives as hypotensive agents. JOURNAL OF SAUDI CHEMICAL SOCIETY 2016. [DOI: 10.1016/j.jscs.2012.08.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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22
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Kishore KG, Islas-Jácome A, Rentería-Gómez A, Conejo AS, Basavanag UM, Wrobel K, Gámez-Montaño R. Synthesis of unsymmetrical bis-heterocycles containing the imidazo[2,1-b]thiazole framework and their benzo[d]fused analogues by an acid-free Groebke–Blackburn–Bienaymé reaction. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.120] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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23
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Shi B, Zhu Z, Zhu YS, Zhou D, Wang J, Zhou P, Jing H. Approach for 2-(arylthio)imidazoles and imidazo[2,1-b]thiazoles from imidazo[2,1-b][1,3,4]thiadiazoles by ring-opening and -reconstruction. Org Biomol Chem 2016; 14:2978-84. [DOI: 10.1039/c6ob00102e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Useful heterocyclic synthons of imidazo[2,1-b][1,3,4]thiadiazoles were developed to synthesize imidazo[2,1-b]thiazoles and 2-(arylthio)-1H-imidazoles under mild reaction conditions.
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Affiliation(s)
- Benyi Shi
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Zhouhe Zhu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yi-Shuo Zhu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Dagang Zhou
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Jinyuan Wang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Panpan Zhou
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Huanwang Jing
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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24
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Liu W, Wang S, Jiang Y, He P, Zhang Q, Cao H. Copper-Catalyzed Regioselective C5 Sulfenylation of Imidazo[2,1-b]thiazoles with Thiols. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201402289] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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25
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Fascio ML, Errea MI, D'Accorso NB. Imidazothiazole and related heterocyclic systems. Synthesis, chemical and biological properties. Eur J Med Chem 2014; 90:666-83. [PMID: 25499987 DOI: 10.1016/j.ejmech.2014.12.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Revised: 12/04/2014] [Accepted: 12/06/2014] [Indexed: 10/24/2022]
Abstract
Fused heterobicyclic systems have gained much importance in the field of medicinal chemistry because of their broad spectrum of physiological activities. Among the heterocyclic rings containing bridgehead nitrogen atom, imidazothiazoles derivatives are especially attractive because of their different biological activities. Since many imidazothiazoles derivatives are effective for treating several diseases, is interesting to analyze the behavior of some isosteric related heterocycles, such as pirrolothiazoles, imidazothiadiazoles and imidazotriazoles. In this context, this review summarizes the current knowledge about the syntheses and biological behavior of these families of heterocycles. Traditional synthetic methodologies as well as alternative synthetic procedures are described. Among these last methodologies, the use of multicomponent reaction, novel and efficient coupling reagents, and environmental friendly strategies, like microwave assistance and solvent-free condition in ionic liquids are also summarized. This review includes the biological assessments, docking research and studies of mechanism of action performed in order to obtain the compounds leading to the development of new drugs.
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Affiliation(s)
- Mirta L Fascio
- CIHIDECAR-CONICET-Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2 - Ciudad Universitaria, 1428 Buenos Aires, Argentina
| | - María Inés Errea
- Departamento de Ingeniería Química, Instituto Tecnológico de Buenos Aires, Av. Eduardo Madero 399, 1106 Buenos Aires, Argentina
| | - Norma Beatriz D'Accorso
- CIHIDECAR-CONICET-Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2 - Ciudad Universitaria, 1428 Buenos Aires, Argentina.
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26
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Omar MA, Frey W, Conrad J, Beifuss U. Transition-Metal-Free Synthesis of Imidazo[2,1-b]thiazoles and Thiazolo[3,2-a]benzimidazoles via an S-Propargylation/5-exo-dig Cyclization/Isomerization Sequence Using Propargyl Tosylates as Substrates. J Org Chem 2014; 79:10367-77. [DOI: 10.1021/jo501980w] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Mohamed A. Omar
- Bioorganische
Chemie, Institut für Chemie, Universität Hohenheim, Garbenstraße
30, D-70599 Stuttgart, Germany
| | - Wolfgang Frey
- Institut
für Organische Chemie, Universität Stuttgart, Pfaffenwaldring
55, D-70569 Stuttgart, Germany
| | - Jürgen Conrad
- Bioorganische
Chemie, Institut für Chemie, Universität Hohenheim, Garbenstraße
30, D-70599 Stuttgart, Germany
| | - Uwe Beifuss
- Bioorganische
Chemie, Institut für Chemie, Universität Hohenheim, Garbenstraße
30, D-70599 Stuttgart, Germany
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27
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Kamal A, Balakrishna M, Nayak VL, Shaik TB, Faazil S, Nimbarte VD. Design and synthesis of imidazo[2,1-b]thiazole-chalcone conjugates: microtubule-destabilizing agents. ChemMedChem 2014; 9:2766-80. [PMID: 25313981 DOI: 10.1002/cmdc.201402310] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Indexed: 01/09/2023]
Abstract
A series of chalcone conjugates featuring the imidazo[2,1-b]thiazole scaffold was designed, synthesized, and evaluated for their cytotoxic activity against five human cancer cell lines (MCF-7, A549, HeLa, DU-145 and HT-29). These new hybrid molecules have shown promising cytotoxic activity with IC50 values ranging from 0.64 to 30.9 μM. Among them, (E)-3-(6-(4-fluorophenyl)-2,3-bis(4-methoxyphenyl)imidazo[2,1-b]thiazol-5-yl)-1-(pyridin-2-yl)prop-2-en-1-one (11 x) showed potent antiproliferative activity with IC50 values ranging from 0.64 to 1.44 μM in all tested cell lines. To investigate the mechanism of action, the detailed biological aspects of this promising conjugate (11 x) were carried out on the A549 lung cancer cell line. The tubulin polymerization assay and immunofluoresence analysis results suggest that this conjugate effectively inhibits microtubule assembly in A549 cells. Flow cytometric analysis revealed that this conjugate induces cell-cycle arrest in the G2/M phase and leads to apoptotic cell death. This was further confirmed by Hoechst staining, activation of caspase-3, DNA fragmentation analysis, and Annexin V-FITC assay. Moreover, molecular docking studies indicated that this conjugate (11 x) interacts and binds efficiently with the tubulin protein.
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Affiliation(s)
- Ahmed Kamal
- Medicinal Chemistry & Pharmacology, Council of Science and Industrial Research, Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007 (India); Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad-500 037 (India).
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28
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Zhu YS, Shi B, Fang R, Wang X, Jing H. Palladium-catalyzed microwave-assisted direct arylation of imidazo[2,1-b]thiazoles with aryl bromides: synthesis and mechanistic study. Org Biomol Chem 2014; 12:5773-80. [DOI: 10.1039/c4ob00600c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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29
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Šačkus A, Bričkutė D, Paliulis O, Sløk FA. Synthesis of Heterocyclic Analogs of α-aminoadipic Acid and its Esters Based on Imidazo[2,1-b][1,3]Thiazole. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.2090] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Algirdas Šačkus
- Department of Organic Chemistry; Kaunas University of Technology; Kaunas LT-50254 Lithuania
- Institute of Synthetic Chemistry; Kaunas University of Technology; Kaunas LT-50254 Lithuania
| | - Diana Bričkutė
- Department of Organic Chemistry; Kaunas University of Technology; Kaunas LT-50254 Lithuania
| | - Osvaldas Paliulis
- Institute of Synthetic Chemistry; Kaunas University of Technology; Kaunas LT-50254 Lithuania
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30
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Gao J, Zhu J, Chen L, Shao Y, Zhu J, Huang Y, Wang X, Lv X. Synthesis of benzimidazo[2,1-b]benzothiazole derivatives through sequential Cu-catalyzed domino coupling and Pd-catalyzed Suzuki reaction. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.04.070] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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31
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Akkurt M, Mague JT, Mohamed SK, Hassan AA, Albayati MR. 2-((1E)-1-{2-[(2Z)-3,4-Diphenyl-2,3-di-hydro-1,3-thia-zol-2-yl-idene]hydrazin-1-yl-idene}eth-yl)pyridin-1-ium bromide monohydrate. Acta Crystallogr Sect E Struct Rep Online 2014; 70:o478-9. [PMID: 24826173 PMCID: PMC3998596 DOI: 10.1107/s1600536814006229] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 03/20/2014] [Indexed: 11/24/2022]
Abstract
In the title compound, C22H19N4S+·Br−·H2O, the dihedral angles between the phenyl groups and the mean plane of the thiazolylidene ring are 34.69 (13) and 64.27 (13)°, respectively, while that between the thiazolylidene and pyridinium rings is 14.73 (13)°. In the crystal, zigzag chains of alternating bromide ions and water molecules associate through O—H⋯Br interactions run in channels approximately parallel to the b axis. These chains help form parallel chains of cations through N—H⋯O, C—H⋯N and C—H⋯Br hydrogen bonds.
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Affiliation(s)
- Mehmet Akkurt
- Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
| | - Joel T Mague
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA
| | - Shaaban K Mohamed
- Chemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD, England ; Chemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt
| | - Alaa A Hassan
- Chemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt
| | - Mustafa R Albayati
- Kirkuk University, College of Science, Department of Chemistry, Kirkuk, Iraq
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32
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Searching for new antiarrhythmic agents: Evaluation of meta-hydroxymexiletine enantiomers. Eur J Med Chem 2013; 65:511-6. [DOI: 10.1016/j.ejmech.2013.05.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 05/02/2013] [Accepted: 05/10/2013] [Indexed: 11/23/2022]
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33
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Andzans Z, Krauze A, Adlere I, Krasnova L, Duburs G. Synthesis and enantioselective lipase-catalyzed kinetic resolution of methyl 6-(methoxycarbonyl-methyl)sulfanyl-1,4-dihydropyridine-3-carboxylates. Chem Heterocycl Compd (N Y) 2013. [DOI: 10.1007/s10593-013-1263-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Locatelli A, Cosconati S, Micucci M, Leoni A, Marinelli L, Bedini A, Ioan P, Spampinato SM, Novellino E, Chiarini A, Budriesi R. Ligand based approach to L-type calcium channel by imidazo[2,1-b]thiazole-1,4-dihydropyridines: from heart activity to brain affinity. J Med Chem 2013; 56:3866-77. [PMID: 23586669 DOI: 10.1021/jm301839q] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The synthesis, characterization, and functional in vitro assay in cardiac and smooth muscle (vascular and nonvascular) of a series of 4-imidazo[2,1-b]thiazole-1,4-dihydropyridines are reported. To define the calcium blocker nature of the imidazo[2,1-b]thiazole-1,4-DHPs and their selectivity on Cav1.2 and Cav1.3 isoforms, we performed binding studies on guinea pig atrial and ventricular membranes on intact cells expressing the cloned Cav1.2a subunit and on rat brain cortex. To get major insights into the reasons for the affinity for Cav1.2 and/or Cav1.3, molecular modeling studies were also undertaken. Some physicochemical and pharmacokinetic properties of selected compounds were calculated and compared. All the biological data collected and reported herein allowed us to rationalize the structure-activity relationship of the 4-imidazo[2,1-b]thiazole-1,4-DHPs and to identify which of these enhanced the activity at the central level.
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Affiliation(s)
- Alessandra Locatelli
- Dipartimento di Farmacia e Biotecnologie, Università degli Studi di Bologna, Via Belmeloro 6, 40126 Bologna, Italy
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35
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Eftekhari-Sis B, Zirak M, Akbari A. Arylglyoxals in Synthesis of Heterocyclic Compounds. Chem Rev 2013; 113:2958-3043. [DOI: 10.1021/cr300176g] [Citation(s) in RCA: 228] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Bagher Eftekhari-Sis
- Department of Chemistry, Faculty
of Science, University of Maragheh, Golshahr,
P.O. Box. 55181-83111, Maragheh, Iran
| | - Maryam Zirak
- Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran,
Iran
| | - Ali Akbari
- Department of Chemistry, Faculty
of Science, University of Maragheh, Golshahr,
P.O. Box. 55181-83111, Maragheh, Iran
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36
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Diethyl 4-(6-Chloroimidazo[2,1-b]thiazol-5-yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate and Ethyl 4-(6-Chloroimidazo[2,1-b]thiazol-5-yl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate. MOLBANK 2012. [DOI: 10.3390/m787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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37
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Mukherjee C, Watanabe KT, Biehl ER. Microwave assisted synthesis of novel imidazo [2,1-b]thiazole derivative attached to quinoxalinones. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.093] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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38
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Kamila S, Mendoza K, Biehl ER. Microwave-assisted Hantzsch thiazole synthesis of N-phenyl-4-(6-phenylimidazo[2,1-b]thiazol-5-yl)thiazol-2-amines from the reaction of 2-chloro-1-(6-phenylimidazo[2,1-b]thiazol-5-yl)ethanones and thioureas. Tetrahedron Lett 2012; 53:4921-4924. [PMID: 23175584 PMCID: PMC3501130 DOI: 10.1016/j.tetlet.2012.06.116] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
N-Phenyl-4-(6-phenylimidazo[2,1-b]thiazol-5-yl)thiazol-2-amines (6a-q) have been synthesized by the Hantzsch thiazole reaction of 2-chloro-1-(6-phenylimidazo[2,1-b]thiazol-5-yl)ethanones (4a-e) with suitably substituted thioureas using microwave heating. The ethanones (4a-e) were prepared by the reaction of 6-phenylimidazo[2,1-b]thiazoles (3a-e) with chloroacetylchloride in refluxing 1,4-dioxane whereas the thiazoles (3a-e) were synthesized by the reaction of 2-bromo-1-phenylethanones (2a-e) with thiazol-2-amine in refluxing acetone.
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Affiliation(s)
- Sukanta Kamila
- Department of Chemistry, Southern Methodist University, Dallas, Texas-75275, USA
| | - Kimberly Mendoza
- Department of Chemistry, Southern Methodist University, Dallas, Texas-75275, USA
| | - Edward R. Biehl
- Department of Chemistry, Southern Methodist University, Dallas, Texas-75275, USA
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39
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Affiliation(s)
- Hanan A. Mohamed
- a Applied Organic Chemistry Department , National Research Centre , Dokki , 12622 , Giza , Egypt
| | - Bakr F. Abdel-Wahab
- a Applied Organic Chemistry Department , National Research Centre , Dokki , 12622 , Giza , Egypt
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40
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Barradas JS, Errea MI, D’Accorso NB. Synthesis of imidazo[2,1-b]thiazoles linked to an unprotected carbohydrate moiety. Carbohydr Res 2012; 355:79-86. [DOI: 10.1016/j.carres.2012.04.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2012] [Revised: 04/10/2012] [Accepted: 04/12/2012] [Indexed: 11/16/2022]
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41
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Synthesis and cytotoxic activity of some novel N-pyridinyl-2-(6-phenylimidazo[2,1-b]thiazol-3-yl)acetamide derivatives. Molecules 2012; 17:4703-16. [PMID: 22525437 PMCID: PMC6268833 DOI: 10.3390/molecules17044703] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Revised: 04/01/2012] [Accepted: 04/13/2012] [Indexed: 11/30/2022] Open
Abstract
A series of novel compounds bearing imidazo[2,1-b]thiazole scaffolds were designed and synthesized based on the optimization of the virtual screening hit compound N-(6-morpholinopyridin-3-yl)-2-(6-phenylimidazo[2,1-b]thiazol-3-yl)acetamide (5a), and tested for their cytotoxicity against human cancer cell lines, including HepG2 and MDA-MB-231. The results indicated that the compound 2-(6-(4-chlorophenyl)imidazo[2,1-b]thiazol-3-yl)-N-(6-(4-(4-methoxybenzyl)piperazin-1-yl)pyridin-3-yl)acetamide (5l), with slightly higher inhibition on VEGFR2 than 5a (5.72% and 3.76% inhibitory rate at 20 μM, respectively), was a potential inhibitor against MDA-MB-231 (IC50 = 1.4 μM) compared with sorafenib (IC50 = 5.2 μM), and showed more selectivity against MDA-MB-231 than HepG2 cell line (IC50 = 22.6 μM).
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42
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Andreani A, Granaiola M, Locatelli A, Morigi R, Rambaldi M, Varoli L, Calonghi N, Cappadone C, Farruggia G, Stefanelli C, Masotti L, Nguyen TL, Hamel E, Shoemaker RH. Substituted 3-(5-imidazo[2,1-b]thiazolylmethylene)-2-indolinones and analogues: synthesis, cytotoxic activity, and study of the mechanism of action. J Med Chem 2012; 55:2078-88. [PMID: 22283430 PMCID: PMC3297693 DOI: 10.1021/jm2012694] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis of substituted 3-(5-imidazo[2,1-b]thiazolylmethylene)-2-indolinones and analogues is reported. Their cytotoxic activity was evaluated according to protocols available at the National Cancer Institute (NCI), Bethesda, MD. The action of selected compounds was examined for potential inhibition of tubulin assembly in comparison with the potent colchicine site agent combretastatin A-4. The most potent compounds also strongly and selectively inhibited the phosphorylation of the oncoprotein kinase Akt in cancer cells. The effect of the most interesting compounds was examined on the growth of HT-29 colon cancer cells. These compounds caused the cells to arrest in the G2/M phase of the cell cycle, as would be expected for inhibitors of tubulin assembly.
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Affiliation(s)
- Aldo Andreani
- Dipartimento di Scienze Farmaceutiche, Università di Bologna, Via Belmeloro 6, 40126 Bologna, Italy.
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43
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Revelant G, Hesse S, Kirsch G. Synthesis of novel 2-aminothieno[3,2-d]thiazoles and selenolo[3,2-d]thiazoles. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.09.134] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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44
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Budriesi R, Ioan P, Leoni A, Pedemonte N, Locatelli A, Micucci M, Chiarini A, Galietta LJV. Cystic fibrosis: a new target for 4-Imidazo[2,1-b]thiazole-1,4-dihydropyridines. J Med Chem 2011; 54:3885-94. [PMID: 21568323 PMCID: PMC3108470 DOI: 10.1021/jm200199r] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The pharmacology of the cystic fibrosis transmembrane conductance regulator (CFTR) Cl(-) channel has attracted significant interest in recent years with the aim to search for rational new therapies for diseases caused by CFTR malfunction. Mutations that abolish the function of CFTR cause the life-threatening genetic disease cystic fibrosis (CF). The most common cause of CF is the deletion of phenylalanine 508 (ΔF508) in the CFTR chloride channel. Felodipine, nifedipine, and other antihypertensive 1,4-dihydropyridines (1,4-DHPs) that block L-type Ca(2+) channels are also effective potentiators of CFTR gating, able to correct the defective activity of ΔF508 and other CFTR mutants ( Mol. Pharmacol. 2005 , 68 , 1736 ). For this purpose, we evaluated the ability of the previously and newly synthesized 4-imidazo[2,1-b]thiazoles-1,4-dihydropyridines without vascular activity and inotropic and/or chronotropic cardiac effects ( J. Med. Chem. 2008 , 51 , 1592 ) to enhance the activity of ΔF508-CFTR. Our studies indicate compounds 17, 18, 20, 21, 38, and 39 as 1,4-DHPs with an interesting profile of activity.
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Affiliation(s)
- Roberta Budriesi
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Bologna, 40126 Bologna, Italy
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Tasso B, Budriesi R, Vazzana I, Ioan P, Micucci M, Novelli F, Tonelli M, Sparatore A, Chiarini A, Sparatore F. Novel Quinolizidinyl Derivatives as Antiarrhythmic Agents: 2. Further Investigation. J Med Chem 2010; 53:4668-77. [DOI: 10.1021/jm100298d] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bruno Tasso
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Genova, V.le Benedetto XV 3, 16132 Genova, Italy
| | - Roberta Budriesi
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Iana Vazzana
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Genova, V.le Benedetto XV 3, 16132 Genova, Italy
| | - Pierfranco Ioan
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Matteo Micucci
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Federica Novelli
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Genova, V.le Benedetto XV 3, 16132 Genova, Italy
| | - Michele Tonelli
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Genova, V.le Benedetto XV 3, 16132 Genova, Italy
| | - Anna Sparatore
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, 20133 Milano, Italy
| | - Alberto Chiarini
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Fabio Sparatore
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Genova, V.le Benedetto XV 3, 16132 Genova, Italy
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46
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Regioselective synthesis of new 2-(E)-cyano(thiazolidin-2-ylidene)thiazoles. Molecules 2009; 14:4849-57. [PMID: 20032863 PMCID: PMC6255026 DOI: 10.3390/molecules14114849] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2009] [Revised: 11/04/2009] [Accepted: 11/25/2009] [Indexed: 11/25/2022] Open
Abstract
Cyclocondensation of 2-[bis(methylthio)methylene]malononitrile (1) and cysteamine (2) afforded 2-(thiazolidin-2-ylidene)malononitrile (3). This compound on treatment with NaSH gave the corresponding thioamide derivative 4a in a regioselective manner on the basis of its single crystal X-ray diffraction analysis. Reaction of this compound with several α-bromocarbonyl compounds gave new 2-(E)-cyano(thiazolidin-2-ylidene)thiazoles 5a-g.
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Viale M, Cordazzo C, de Totero D, Budriesi R, Rosano C, Leoni A, Ioan P, Aiello C, Croce M, Andreani A, Rambaldi M, Russo P, Chiarini A, Spinelli D. Inhibition of MDR1 activity and induction of apoptosis by analogues of nifedipine and diltiazem: an in vitro analysis. Invest New Drugs 2009; 29:98-109. [DOI: 10.1007/s10637-009-9340-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2009] [Accepted: 09/28/2009] [Indexed: 11/29/2022]
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48
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Thomae D, Perspicace E, Xu Z, Henryon D, Schneider S, Hesse S, Kirsch G, Seck P. One-pot synthesis of new 2,4,5-trisubstituted 1,3-thiazoles and 1,3-selenazoles. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.01.104] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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49
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Khilifi A, Raouafi N, Tapsoba I, Boujlel K, Lamine Benkhoud M. Reactivity of N-thioamido amidines with halogenated alkyl derivatives: synthesis of 4,5-disubstituted 2-alkylaminothiazoles. J Sulphur Chem 2008. [DOI: 10.1080/17415990802346002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Akila Khilifi
- a Laboratoire de Chimie Analytique et Electrochimie, Faculté des Sciences de Tunis , Campus Universitaire Tunis El-Manar 2092, Tunis, Tunisia
| | - Noureddine Raouafi
- a Laboratoire de Chimie Analytique et Electrochimie, Faculté des Sciences de Tunis , Campus Universitaire Tunis El-Manar 2092, Tunis, Tunisia
| | - Issa Tapsoba
- b Laboratoire de Chimie Organique: Structure et Réactivité , Université de Ouagadougou, UFR-SEA , Ouagadougou, Burkina Faso
| | - Khaled Boujlel
- a Laboratoire de Chimie Analytique et Electrochimie, Faculté des Sciences de Tunis , Campus Universitaire Tunis El-Manar 2092, Tunis, Tunisia
| | - Mohamed Lamine Benkhoud
- a Laboratoire de Chimie Analytique et Electrochimie, Faculté des Sciences de Tunis , Campus Universitaire Tunis El-Manar 2092, Tunis, Tunisia
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