1
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Acharya A, Yadav M, Nagpure M, Kumaresan S, Guchhait SK. Molecular medicinal insights into scaffold hopping-based drug discovery success. Drug Discov Today 2024; 29:103845. [PMID: 38013043 DOI: 10.1016/j.drudis.2023.103845] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/17/2023] [Accepted: 11/22/2023] [Indexed: 11/29/2023]
Abstract
In both academia and the pharmaceutical industry, innovative hypotheses, methodologies and technologies that can shorten the drug research and development, leading to higher success rates, are vital. In this review, we demonstrate how innovative variations of the scaffold-hopping strategy have been used to create new druggable molecular spaces, drugs, clinical candidates, preclinical candidates, and bioactive agents. We also analyze molecular modulations that enabled improvements of the pharmacodynamic (PD), physiochemical, and pharmacokinetic (PK) properties (P3 properties) of the drugs resulting from these scaffold-hopping strategies.
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Affiliation(s)
- Ayan Acharya
- National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Punjab 160062, India
| | - Mukul Yadav
- National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Punjab 160062, India
| | - Mithilesh Nagpure
- National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Punjab 160062, India
| | - Sanathanalaxmi Kumaresan
- National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Punjab 160062, India; National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Punjab 160062, India
| | - Sankar K Guchhait
- National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Punjab 160062, India.
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2
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Zhang Y, Fan W, Li Y, Huang D. Copper-Catalyzed Oxidative [3 + 2] Cycloaddition of N-Alkyl Pyridinium Salts to Imidazo[1,2- a]pyridines. J Org Chem 2023; 88:12244-12250. [PMID: 37606631 DOI: 10.1021/acs.joc.3c00728] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
A copper-catalyzed reaction of pyridinium salts and trimethylsilyl cyanide (TMSCN) in the presence of diethyl phosphite is developed. This reaction, which allows the single-step construction of biologically important 2-cyanoimidazo[1,2-a]pyridine from readily available starting materials, is realized for the first time and is feasible at the gram scale. The scope of the protocol is demonstrated with 27 examples. A consecutive double cyanation and cyclization can be achieved in this one-pot process. TMSCN plays a dual role not only as the "CN" source but also as the coupling partner for the cyclization of imidazo[1,2-a]pyridines.
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Affiliation(s)
- Yuan Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
| | - Weibin Fan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Yinghua Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Deguang Huang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
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3
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Kumar Mishra S, Parikh A, Rangan K, Sah AK. Synthesis of Catalyst Using Bio‐benign Precursors and Its Application in One‐Pot Catalytic Synthesis of Imidazo[1,2‐
a
]pyridines. ChemistrySelect 2023. [DOI: 10.1002/slct.202300129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Affiliation(s)
- Santosh Kumar Mishra
- Department of Chemistry Birla Institute of Technology and Science, Pilani Pilani Campus Rajasthan 333031 India
| | - Anuvasita Parikh
- Department of Chemistry Birla Institute of Technology and Science, Pilani Pilani Campus Rajasthan 333031 India
| | - Krishnan Rangan
- Department of Chemistry Birla Institute of Technology and Science, Pilani Hyderabad Campus Telangana 500078 India
| | - Ajay K. Sah
- Department of Chemistry Birla Institute of Technology and Science, Pilani Pilani Campus Rajasthan 333031 India
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4
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Bidusenko IA, Schmidt EY, Ushakov IA, Vashchenko AV, Protsuk NI, Orel VB, Vitkovskaya NM, Trofimov BA. Semistabilized Diazatrienyl Anions from Pyridine Imines and Acetylenes: An Access to ( Z)-Stilbene/Imidazopyridine Ensembles, Benzyl Imidazopyridines, and Beyond. J Org Chem 2022; 87:12225-12239. [PMID: 36044622 DOI: 10.1021/acs.joc.2c01372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Semistabilized diazatrienyl anions are generated by the reaction of 2-pyridylarylimines with arylacetylenes in superbase systems MOtBu (M = Li, Na, K)/DMSO at ambient temperature for 15 min. The initial intermediate N-centered propargyl-1,3-diaza-1,3,5-trienyl anions undergo intermolecular cyclization to benzyl imidazopyridine anions (formally [3 + 2] cycloaddition), further intercepting a second molecule of the starting pyridylimines or a proton of medium to afford (Z)-stilbene/imidazopyridine ensembles and benzyl imidazopyridines. The charge distribution in all intermediate anions and their synthetic evolution are consistent with quantum-chemical analysis (B2PLYPD/6-311+G**//B3LYP/6-31+G*).
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Affiliation(s)
- Ivan A Bidusenko
- E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, 1 Favorsky Str., 664033 Irkutsk, Russia
| | - Elena Yu Schmidt
- E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, 1 Favorsky Str., 664033 Irkutsk, Russia
| | - Igor A Ushakov
- E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, 1 Favorsky Str., 664033 Irkutsk, Russia
| | - Alexander V Vashchenko
- E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, 1 Favorsky Str., 664033 Irkutsk, Russia
| | - Nadezhda I Protsuk
- E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, 1 Favorsky Str., 664033 Irkutsk, Russia
| | - Vladimir B Orel
- E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, 1 Favorsky Str., 664033 Irkutsk, Russia.,Laboratory of Quantum-Chemical Modeling of Molecular Systems, Irkutsk State University, 1 K. Marx Street, 664003 Irkutsk, Russia
| | - Nadezhda M Vitkovskaya
- Laboratory of Quantum-Chemical Modeling of Molecular Systems, Irkutsk State University, 1 K. Marx Street, 664003 Irkutsk, Russia
| | - Boris A Trofimov
- E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, 1 Favorsky Str., 664033 Irkutsk, Russia
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5
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Das D, Jena AK, Pal CK, Bourda L, Van Hecke K. CuI Nanoparticles‐Catalyzed Regioselective Synthesis of 3‐Nitro‐2‐arylimidazo[1,2‐a]pyridines using Oxygen as Oxidant. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100776] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dibya Das
- Maharaja Sriram Chandra Bhanja Deo University Chemistry Department of ChemistryMaharaja Sriram Chandra Bhanjadeo University(Erstwhile North Orissa University) Sriram Chandra Vihar, Takatpur, Baripada, Od 757003 Baripada INDIA
| | - Ashis Kumar Jena
- North Orissa University Chemistry Sriram Chandra ViharTakatpur 757003 Baripada INDIA
| | - Chandan Kumar Pal
- Maharaja Sriram Chandra Bhanja Deo University Chemistry Department of ChemistryMaharaja Sriram Chandra Bhanjadeo University(Erstwhile North Orissa University) Sriram Chandra Vihar, Takatpur, Baripada, Od 757003 Baripada INDIA
| | - Laurens Bourda
- Ghent University: Universiteit Gent Chemistry 9000 Ghent BELGIUM
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6
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Dong R, Zhang C, Wang C, Zhou X, Li W, Zhang JY, Wang M, Xu Y, Sun LP. Design, synthesis and anticancer evaluation of 3-methyl-1H-indazole derivatives as novel selective bromodomain-containing protein 4 inhibitors. Bioorg Med Chem 2022; 55:116592. [PMID: 34999525 DOI: 10.1016/j.bmc.2021.116592] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 12/12/2021] [Accepted: 12/23/2021] [Indexed: 12/14/2022]
Abstract
Bromodomain-containing Protein 4 (BRD4), an 'epigenetic reader', regulates chromatin structure and gene expression via recognizing and binding acetylated lysine in histones. BRD4 has become a therapeutic target for cancers because it promotes the expression of the tumor genes, such as c-Myc, NF-κB, and Bcl-2. In this study, a new series of 3-methyl-1H-indazole derivatives were designed via virtual screening and structure-based optimization. All compounds were synthesized and evaluated for their inhibitory activities to BRD4-BD1 and their antiproliferative effects in cancer cell lines. Among them, several compounds (such as 9d, 9u and 9w) exhibited strong BRD4-BD1 affinities and inhibition activities, and potently suppressed MV4;11 cancer cell line proliferation. Among them, compound 9d showed excellent selectivity for BRD4 and effectively suppressed c-Myc, the downstream protein of BRD4. This study provided new lead compounds for further biological evaluation on BRD4.
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Affiliation(s)
- Ru Dong
- Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
| | - Cheng Zhang
- Institute of Chemical Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kai yuan Avenue, Guangzhou Science Park, Guangzhou, Guangdong 510530, China
| | - Chao Wang
- Institute of Chemical Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kai yuan Avenue, Guangzhou Science Park, Guangzhou, Guangdong 510530, China
| | - Xin Zhou
- Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
| | - Wen Li
- Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
| | - Jin-Yang Zhang
- Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
| | - Min Wang
- Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
| | - Yong Xu
- Institute of Chemical Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kai yuan Avenue, Guangzhou Science Park, Guangzhou, Guangdong 510530, China.
| | - Li-Ping Sun
- Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, PR China.
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7
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Panda J, Raiguru BP, Mishra M, Mohapatra S, Nayak S. Recent Advances in the Synthesis of Imidazo[1,2‐
a
]pyridines: A Brief Review. ChemistrySelect 2022. [DOI: 10.1002/slct.202103987] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jasmine Panda
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Bishnu P. Raiguru
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Mitali Mishra
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Seetaram Mohapatra
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Sabita Nayak
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
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8
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Pandya KM, Battula S, Patel NB. Design & Synthesis of InCl3 Catalyzed Novel Pyrazole Conjugates with 2°-Amines; Discover Their in Vitro Antimicrobial & DFT Studies. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2026986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Keyur M. Pandya
- Department of Chemistry, Veer Narmad South Gujarat University, Surat, Gujarat, India
- Department of Product Research & Development, Alexza Pharmaceuticals Inc, Mountain View, California, USA
| | | | - Navin B. Patel
- Department of Chemistry, Veer Narmad South Gujarat University, Surat, Gujarat, India
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9
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Zhou Z, Luo D, Li G, Yang Z, Cui L, Yang W. Copper-catalyzed three-component reaction to synthesize polysubstituted imidazo[1,2- a]pyridines. RSC Adv 2022; 12:20199-20205. [PMID: 35919587 PMCID: PMC9280286 DOI: 10.1039/d2ra02722d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 07/07/2022] [Indexed: 12/02/2022] Open
Abstract
An efficient three-component one-pot and operationally simple cascade of 2-aminopyridines with sulfonyl azides and terminal ynones is reported, providing a variety of polysubstituted imidazo[1,2-a]pyridine derivatives in moderate to excellent yields. In particular, the reaction goes a through CuAAC/ring-cleavage process and forms a highly active intermediate α-acyl-N-sulfonyl ketenimine with base free. Three-component one-pot synthesis of polysubstituted imidazo[1,2-a]pyridine derivatives through a base free CuAAC/ring-cleavage process.![]()
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Affiliation(s)
- Zitong Zhou
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China
| | - Danyang Luo
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China
| | - Guanrong Li
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China
| | - Zhongtao Yang
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China
| | - Liao Cui
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China
| | - Weiguang Yang
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, China
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, Guangdong, 524023, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang, Guangdong, 524023, China
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10
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Recent Advances in the Use of the Dimerization Strategy as a Means to Increase the Biological Potential of Natural or Synthetic Molecules. Molecules 2021; 26:molecules26082340. [PMID: 33920597 PMCID: PMC8073093 DOI: 10.3390/molecules26082340] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/12/2021] [Accepted: 04/14/2021] [Indexed: 02/07/2023] Open
Abstract
The design of C2-symmetric biologically active molecules is a subject of interest to the scientific community. It provides the possibility of discovering medicine with higher biological potential than the parent drugs. Such molecules are generally produced by classic chemistry, considering the shortness of reaction sequence and the efficacy for each step. This review describes and analyzes recent advances in the field and emphasizes selected C2-symmetric molecules (or axial symmetric molecules) made during the last 10 years. However, the description of the dimers is contextualized by prior work allowing its development, and they are categorized by their structure and/or by their properties. Hence, this review presents dimers composed of steroids, sugars, and nucleosides; known and synthetic anticancer agents; polyphenol compounds; terpenes, known and synthetic antibacterial agents; and natural products. A special focus on the anticancer potential of the dimers transpires throughout the review, notwithstanding their structure and/or primary biological properties.
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11
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Guchhait SK, Saini M, Khivsara VJ, Giri SK. Annulation of Conjugated Azine-Imine with a Sulfoxonium Ylide in a Noncarbenoid Route to Synthesize Multisubstituted Imidazole-Fused Heterocycles. J Org Chem 2021; 86:5380-5387. [PMID: 33759525 DOI: 10.1021/acs.joc.1c00052] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A new [4+1]-annulation of in situ generated heterocyclic azine-aldimines with β-keto sulfoxonium ylides has been developed. The reaction constructs N-fused imidazole rings. In the reaction, the ylides play a dual-functional role of a nucleophilic 1,1-dipolar one-carbon synthon and a source of an internal oxidant, dimethyl sulfoxide, that promotes in situ dehydrogenation to product scaffolds. The method enables access to imidazo-pyridine, pyrazine, and pyrimidine heteroaromatics.
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Affiliation(s)
- Sankar K Guchhait
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, SAS Nagar, Mohali, Punjab 160062, India
| | - Meenu Saini
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, SAS Nagar, Mohali, Punjab 160062, India
| | - Viren J Khivsara
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, SAS Nagar, Mohali, Punjab 160062, India
| | - Santosh K Giri
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, SAS Nagar, Mohali, Punjab 160062, India
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12
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Imtiaz S, Ahmad War J, Banoo S, Khan S. α-Aminoazoles/azines: key reaction partners for multicomponent reactions. RSC Adv 2021; 11:11083-11165. [PMID: 35423648 PMCID: PMC8695948 DOI: 10.1039/d1ra00392e] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 02/23/2021] [Indexed: 12/28/2022] Open
Abstract
Aromatic α-aminoazaheterocycles are the focus of significant investigations and exploration by researchers owing to their key role in diverse biological and physiological processes. The existence of their derivatives in numerous drugs and alkaloids is due to their heterocyclic nitrogenous nature. Therefore, the synthesis of a structurally diverse range of their derivatives through simple and convenient methods represents a vital field of synthetic organic chemistry. Multicomponent reactions (MCRs) provide a platform to introduce desirable structure diversity and complexity into a molecule in a single operation with a significant reduction in the use of harmful organic waste, and hence have attracted particular attention as an excellent tool to access these derivatives. This review covers the advances made from 2010 to the beginning of 2020 in terms of the utilization of α-aminoazaheterocycles as synthetic precursors in MCRs.
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Affiliation(s)
- Shah Imtiaz
- Department of Chemistry, Aligarh Muslim University Aligarh India-202002
| | - Jahangir Ahmad War
- Department of Chemistry, National Institute of Technology Kashmir India-190006
| | - Syqa Banoo
- Department of Chemistry, Mangalayatan University Beswan Aligarh India-202146
| | - Sarfaraz Khan
- Department of Chemistry, Aligarh Muslim University Aligarh India-202002
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13
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Sree Uppalapati D, Sekhara Reddy Dachuru R, Veni Sunkara S. Metal-Free Regioselective Synthesis of 2-Nitro-3-arylimidazo[1,2-a]pyridines via Oxidative Amination under Air Using Silica Sulfuric Acid as an Effective Heterogeneous Catalyst. HETEROCYCLES 2021. [DOI: 10.3987/com-21-14464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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14
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Volkova Y, Baranin S, Zavarzin I. A
3
Coupling Reaction in the Synthesis of Heterocyclic Compounds. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000866] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Yulia Volkova
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences 47 Leninsky prosp. Moscow 119991
| | - Sergey Baranin
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences 47 Leninsky prosp. Moscow 119991
| | - Igor Zavarzin
- N. D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences 47 Leninsky prosp. Moscow 119991
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15
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First biocatalytic Groebke-Blackburn-Bienaymé reaction to synthesize imidazo[1,2-a]pyridine derivatives using lipase enzyme. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131643] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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16
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Azizi S, Shadjou N, Soleymani J. CuI/Fe
3
O
4
NPs@Biimidazole IL‐KCC‐1 as a leach proof nanocatalyst for the synthesis of imidazo[1,2‐
a
]pyridines in aqueous medium. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.6031] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Sajjad Azizi
- Pharmaceutical Analysis Research Center Tabriz University of Medical Sciences Tabriz Iran
| | - Nasrin Shadjou
- Nanotechnology Research Group, Faculty of Science and Chemistry Urmia University Urmia Iran
| | - Jafar Soleymani
- Pharmaceutical Analysis Research Center Tabriz University of Medical Sciences Tabriz Iran
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17
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Watanabe K, Takagi M, Watanabe A, Murata S, Takita R. Cu(I)/sucrose-catalyzed hydroxylation of arenes in water: the dual role of sucrose. Org Biomol Chem 2020; 18:7827-7831. [PMID: 32990294 DOI: 10.1039/d0ob01683g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A protocol for the hydroxylation of aryl halides catalyzed by copper(i) and sucrose in neat water has been developed. The dual role of sucrose, the reaction pathway, and the high selectivity for hydroxylation were investigated using a combination of experimental and theoretical techniques.
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Affiliation(s)
- Kohei Watanabe
- One-stop Sharing Facility Center for Future Drug Discoveries, Graduate School of Pharmaceutical Sciences, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, Japan.
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18
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Wołos A, Roszak R, Żądło-Dobrowolska A, Beker W, Mikulak-Klucznik B, Spólnik G, Dygas M, Szymkuć S, Grzybowski BA. Synthetic connectivity, emergence, and
self-regeneration in the network of prebiotic
chemistry. Science 2020; 369:369/6511/eaaw1955. [DOI: 10.1126/science.aaw1955] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 03/28/2020] [Accepted: 07/24/2020] [Indexed: 12/13/2022]
Abstract
The challenge of prebiotic chemistry is to
trace the syntheses of life’s key building blocks
from a handful of primordial substrates. Here we
report a forward-synthesis algorithm that
generates a full network of prebiotic chemical
reactions accessible from these substrates under
generally accepted conditions. This network
contains both reported and previously unidentified
routes to biotic targets, as well as plausible
syntheses of abiotic molecules. It also exhibits
three forms of nontrivial chemical emergence, as
the molecules within the network can act as
catalysts of downstream reaction types; form
functional chemical systems, including
self-regenerating cycles; and produce surfactants
relevant to primitive forms of biological
compartmentalization. To support these claims,
computer-predicted, prebiotic syntheses of several
biotic molecules as well as a multistep,
self-regenerative cycle of iminodiacetic acid were
validated by experiment.
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Affiliation(s)
- Agnieszka Wołos
- Institute of Organic Chemistry,
Polish Academy of Sciences, Warsaw,
Poland
- Allchemy, Inc., Highland, IN,
USA
| | - Rafał Roszak
- Institute of Organic Chemistry,
Polish Academy of Sciences, Warsaw,
Poland
- Allchemy, Inc., Highland, IN,
USA
| | | | - Wiktor Beker
- Institute of Organic Chemistry,
Polish Academy of Sciences, Warsaw,
Poland
- Allchemy, Inc., Highland, IN,
USA
| | - Barbara Mikulak-Klucznik
- Institute of Organic Chemistry,
Polish Academy of Sciences, Warsaw,
Poland
- Allchemy, Inc., Highland, IN,
USA
| | - Grzegorz Spólnik
- Institute of Organic Chemistry,
Polish Academy of Sciences, Warsaw,
Poland
| | - Mirosław Dygas
- Institute of Organic Chemistry,
Polish Academy of Sciences, Warsaw,
Poland
| | - Sara Szymkuć
- Institute of Organic Chemistry,
Polish Academy of Sciences, Warsaw,
Poland
- Allchemy, Inc., Highland, IN,
USA
| | - Bartosz A. Grzybowski
- Institute of Organic Chemistry,
Polish Academy of Sciences, Warsaw,
Poland
- Allchemy, Inc., Highland, IN,
USA
- Center for Soft and Living Matter of
Korea’s Institute for Basic Science (IBS), Ulsan,
South Korea
- Department of Chemistry, Ulsan
National Institute of Science and Technology,
Ulsan, South Korea
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19
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Gudimella SK, Kaur A, Kumar R, Samanta S. CuCl2-catalyzed N O bond cleavage of oxime esters: Approach to imidazoheterocycles and furo[3,2-c]chromenyl fused imidazoles. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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20
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Mutkule N, Bugad N, Mokale S, Choudhari V, Ubale M. Novel approach in the synthesis of imidazo [1, 2‐
a
] pyridine from phenyl acrylic acids. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Nilesh Mutkule
- Department of ChemistryVasantrao Naik Mahavidyalya, Dr.Babasaheb Ambedkar Marathwada University Aurangabad India
| | - Nageshprasad Bugad
- Department of ChemistryVasantrao Naik Mahavidyalya, Dr.Babasaheb Ambedkar Marathwada University Aurangabad India
| | - Santosh Mokale
- Department of Pharmaceutical ChemistryY. B. Chavan College of Pharmacy, Dr.Babasaheb Ambedkar Marathwada University Aurangabad India
| | - Vilas Choudhari
- Department of Chemistry, Yogeshwari Mahavidyalya, AmbejogaiDr.Babasaheb Ambedkar Marathwada University Beed India
| | - Milind Ubale
- Department of ChemistryVasantrao Naik Mahavidyalya, Dr.Babasaheb Ambedkar Marathwada University Aurangabad India
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21
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Bhutia Z, Panjikar PC, Iyer S, Chatterjee A, Banerjee M. Iodine Promoted Efficient Synthesis of 2-Arylimidazo[1,2- a]pyridines in Aqueous Media: A Comparative Study between Micellar Catalysis and an "On-Water" Platform. ACS OMEGA 2020; 5:13333-13343. [PMID: 32548520 PMCID: PMC7288711 DOI: 10.1021/acsomega.0c01478] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 05/12/2020] [Indexed: 05/12/2023]
Abstract
In a new and environmentally sustainable approach, a series of 2-arylimidazo[1,2-a]pyridine derivatives were synthesized in aqueous media in the presence of iodine as a catalyst. The reaction proceeded by condensation of various aryl methyl ketones with 2-aminopyridines to afford 2-arylimidazo[1,2-a]pyridines in good overall yields. Although several of the reactions were efficiently performed "on water", the addition of a surfactant, namely, sodium dodecyl sulphate , was found effective in terms of substrate scope and yield enhancement. Both methods were successfully used for the gram-scale synthesis of a marketed drug, zolimidine. The simple experimental setup, water as "green" media, and inexpensive catalyst are some of the merits of this protocol.
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Affiliation(s)
- Zigmee
T. Bhutia
- Department
of Chemistry, BITS Pilani-K. K. Birla Goa
Campus, NH 17 B Bypass
Road, Zuarinagar, Sancoale 403726, Goa, India
| | - Padmini C. Panjikar
- Department
of Chemistry, BITS Pilani-K. K. Birla Goa
Campus, NH 17 B Bypass
Road, Zuarinagar, Sancoale 403726, Goa, India
- Parvatibai
Chowgule College of Arts & Science (Autonomous), Margao 403602, Goa, India
| | - Shruti Iyer
- Department
of Chemistry, BITS Pilani-K. K. Birla Goa
Campus, NH 17 B Bypass
Road, Zuarinagar, Sancoale 403726, Goa, India
| | - Amrita Chatterjee
- Department
of Chemistry, BITS Pilani-K. K. Birla Goa
Campus, NH 17 B Bypass
Road, Zuarinagar, Sancoale 403726, Goa, India
- . Phone: +91-832-2580-320. Fax: +91-832-255-7031
| | - Mainak Banerjee
- Department
of Chemistry, BITS Pilani-K. K. Birla Goa
Campus, NH 17 B Bypass
Road, Zuarinagar, Sancoale 403726, Goa, India
- . Phone: +91-832-2580-347. Fax: +91-832-255-7031
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22
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Copper Iodide Nanoparticles Immobolized Porous Polysulfonamide: An Effective Nanocatalyst for Synthesis of Imidazo [1,2-a] Pyridines. Catal Letters 2020. [DOI: 10.1007/s10562-020-03265-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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23
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Ashok D, Ram Reddy M, Ramakrishna K, Nagaraju N, Dharavath R, Sarasija M. Iodine mediated synthesis of some new imidazo[1,2‐a]pyridine derivatives and evaluation of their antimicrobial activity. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3967] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dongamanti Ashok
- Green and Medicinal Chemistry Laboratory, Department of ChemistryOsmania University Hyderabad Telangana India
| | - M. Ram Reddy
- Green and Medicinal Chemistry Laboratory, Department of ChemistryOsmania University Hyderabad Telangana India
| | - Katta Ramakrishna
- Green and Medicinal Chemistry Laboratory, Department of ChemistryOsmania University Hyderabad Telangana India
| | - Nalaparaju Nagaraju
- Green and Medicinal Chemistry Laboratory, Department of ChemistryOsmania University Hyderabad Telangana India
| | - Ravinder Dharavath
- Green and Medicinal Chemistry Laboratory, Department of ChemistryOsmania University Hyderabad Telangana India
| | - Madderla Sarasija
- Department of ChemistrySatavahana University Karimnagar Telangana India
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24
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Pathan SI, Chundawat NS, Chauhan NPS, Singh GP. A review on synthetic approaches of heterocycles via insertion-cyclization reaction. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1712609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | | | | | - Girdhar Pal Singh
- Department of Chemistry, Bhupal Nobles’ University, Udaipur, Rajasthan, India
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25
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Li X, Wang S, Zang J, Liu M, Jiang G, Ji F. Copper- and DMF-mediated switchable oxidative C–H cyanation and formylation of imidazo[1,2-a]pyridines using ammonium iodide. Org Biomol Chem 2020; 18:9100-9108. [DOI: 10.1039/d0ob01838d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The cyanation and formylation of imidazo[1,2-a]pyridines were developed under copper-mediated oxidative conditions using ammonium iodide and DMF as a nontoxic combined cyano-group source and DMF as a formylation reagent.
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Affiliation(s)
- Xuan Li
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
| | - Shoucai Wang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
| | - Jiawang Zang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
| | - Meichen Liu
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
| | - Guangbin Jiang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
| | - Fanghua Ji
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
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26
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Wang S, Zhang S, Liu M, Zang J, Jiang G, Ji F. Palladium-catalyzed C3-selective C–H oxidative carbonylation of imidazo[1,2-a]pyridines with CO and alcohols: a way to access esters. Org Chem Front 2020. [DOI: 10.1039/d0qo00003e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A palladium-catalyzed C3-selective C–H oxidative carbonylation for the synthesis of various esters from imidazo[1,2-a]pyridines and CO with high efficiency and high atom economy has been developed.
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Affiliation(s)
- Shoucai Wang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
| | - Siyu Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
| | - Meichen Liu
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
| | - Jiawang Zang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
| | - Guangbin Jiang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
| | - Fanghua Ji
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
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27
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Ghanbarian M, Beheshtiha SYS, Heravi MM. A Facile and Effective Four-Component Synthesis of Benzo[4,5]imidazo[1,2-a]-pyrimidine-3-carboxamides Based on Diketene. Polycycl Aromat Compd 2019. [DOI: 10.1080/10406638.2019.1695217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Manizheh Ghanbarian
- Department of Chemistry, School of Science, Alzahra University, Vanak, Tehran, Iran
| | | | - Majid M. Heravi
- Department of Chemistry, School of Science, Alzahra University, Vanak, Tehran, Iran
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28
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Ebenezer O, Awolade P, Koorbanally N, Singh P. New library of pyrazole–imidazo[1,2‐α]pyridine molecular conjugates: Synthesis, antibacterial activity and molecular docking studies. Chem Biol Drug Des 2019; 95:162-173. [DOI: 10.1111/cbdd.13632] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/29/2019] [Accepted: 08/26/2019] [Indexed: 11/30/2022]
Affiliation(s)
| | - Paul Awolade
- School of Chemistry University of KwaZulu‐Natal Durban South Africa
| | - Neil Koorbanally
- School of Chemistry University of KwaZulu‐Natal Durban South Africa
| | - Parvesh Singh
- School of Chemistry University of KwaZulu‐Natal Durban South Africa
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29
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Meenakshisundaram S, Manickam M, Pillaiyar T. Exploration of imidazole and imidazopyridine dimers as anticancer agents: Design, synthesis, and structure-activity relationship study. Arch Pharm (Weinheim) 2019; 352:e1900011. [PMID: 31596021 DOI: 10.1002/ardp.201900011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 09/02/2019] [Accepted: 09/07/2019] [Indexed: 11/07/2022]
Abstract
Dimerization of proteins/receptors plays a critical role in various cellular processes, including cell proliferation and differentiation. Therefore, targeting such dimeric proteins/receptors by dimeric small molecules could be a potential therapeutic approach to treating various diseases, including inflammation-associated diseases like cancer. A novel series of bis-imidazoles (13-18) and bis-imidazo[1,2-a]pyridines (19-28) were designed and synthesized from Schiff base dimers (1-12) for their anticancer activities. All the synthesized compounds were screened for anticancer activities against three cancer cell lines, including cervical (HeLa), breast (MDA-MB-231), and renal cancer (ACHN). From structure-activity relationship studies, imidazo[1,2-a]pyridines (19-28) showed remarkable cytotoxic activities, with compounds 19 and 24 showing the best inhibitory activities against all three cell lines. Especially, both 19 and 24 were very effective against the breast cancer cell line (19, GI50 = 0.43 µM; 24, GI50 = 0.3 µM), exceeding the activity of the control adriamycin (GI50 = 0.51 µM). The in vivo anticancer activity results of compounds 19 and 24 were comparable with those of the animals treated with the standard drug tamoxifen. Therefore, the dimeric imidazo[1,2-a]pyridine scaffold could serve as a potential lead for the development of novel anticancer agents.
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Affiliation(s)
| | - Manoj Manickam
- Polymer Engineering Laboratory, PSG Institute of Technology and Applied Research, Coimbatore, Tamil Nadu, India
| | - Thanigaimalai Pillaiyar
- Department of Pharmaceutical and Medicinal Chemistry, PharmaCenter Bonn, Pharmaceutical Institute, University of Bonn, Bonn, Germany
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30
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Khalafy J, Etivand N, Poursattar Marjani A, Khalillou N. Synthesis of 4‐Hydroxy‐3‐(2‐arylimidazo[1,2‐
a
]pyridin‐3‐yl)quinolin‐2(1
H
)‐ones in the Presence of DABCO as an Efficient Organocatalyst. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3571] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jabbar Khalafy
- Department of Organic Chemistry, Faculty of ChemistryUrmia University Urmia Iran
| | - Nasser Etivand
- Department of Organic Chemistry, Faculty of ChemistryUrmia University Urmia Iran
| | | | - Neda Khalillou
- Department of Organic Chemistry, Faculty of ChemistryUrmia University Urmia Iran
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31
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Niu B, You C, Huang B, Cai M. Heterogeneous copper-catalyzed three-component reaction of 2-aminopyridines, acetophenones and benzyl cyanide towards 3-cyanoimidazo[1,2-a]pyridines. CATAL COMMUN 2019. [DOI: 10.1016/j.catcom.2019.01.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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32
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Bhutia Z, Das D, Chatterjee A, Banerjee M. Efficient and "Green" Synthetic Route to Imidazo[1,2- a]pyridine by Cu(II)-Ascorbate-Catalyzed A 3-Coupling in Aqueous Micellar Media. ACS OMEGA 2019; 4:4481-4490. [PMID: 31459643 PMCID: PMC6647986 DOI: 10.1021/acsomega.8b03581] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 02/19/2019] [Indexed: 05/26/2023]
Abstract
An efficient and environmentally sustainable method for the synthesis of imidazo[1,2-a]pyridine derivatives by domino A3-coupling reaction catalyzed by Cu(II)-ascorbate was developed in aqueous micellar media in the presence of sodium dodecyl sulfate (SDS). The catalyst, a dynamic combination of Cu(II)/Cu(I), was generated in situ in the reaction mixture by mixing CuSO4 with sodium ascorbate and aided a facile 5-exo-dig cycloisomerization of alkynes with the condensation products of 2-aminopyridines and aldehydes to afford a variety of imidazo[1,2-a]pyridines in good overall yields. A simple experimental setup, water as the "green" medium, and inexpensive catalyst and auxiliary are some of the merits of this protocol.
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Affiliation(s)
| | | | | | - Mainak Banerjee
- E-mail: . Phone: +91-832-2580-347. Fax: +91-832-255-7031 (M.B.)
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33
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He QX, Liang YF, Xu C, Yao XK, Cao H, Yao HG. Highly Regioselective, Acid-Catalyzed, Three-Component Cascade Reaction for the Synthesis of 2-aminopyridine-Decorated Imidazo[1,2- a]pyridine. ACS COMBINATORIAL SCIENCE 2019; 21:149-153. [PMID: 30653293 DOI: 10.1021/acscombsci.8b00149] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A highly regioselective acid-catalyzed three-component reaction of 2-aminopyridine and 3-phenylpropiolaldehyde for the construction of imidazo[1,2- a]pyridine has been developed. This strategy provides a broad range of substrates and represents an efficient approach to give various 2-aminopyridine-decorated imidazo[1,2- a]pyridine in good yields.
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Affiliation(s)
- Qiu-Xing He
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Yao-Feng Liang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Chang Xu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Xiao-Kun Yao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Hua-Gang Yao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, China
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34
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Hosseini H, Bayat M. An efficient synthesis of new imidazo[1,2- a]pyridine-6-carbohydrazide and pyrido[1,2- a]pyrimidine-7-carbohydrazide derivatives via a five-component cascade reaction. RSC Adv 2019; 9:7218-7227. [PMID: 35519992 PMCID: PMC9061117 DOI: 10.1039/c9ra00350a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 02/26/2019] [Indexed: 11/30/2022] Open
Abstract
A highly efficient and straightforward synthesis of N-fused heterocyclic compounds including N'-(1-(4-nitrophenyl)ethylidene)imidazo[1,2-a]pyridine-6-carbohydrazide and N'-(1-(4-nitrophenyl)ethylidene)pyrido[1,2-a]pyrimidine-7-carbohydrazide derivatives is successfully achieved via a five-component cascade reaction utilizing cyanoacetohydrazide, 4-nitroacetophenone, 1,1-bis(methylthio)-2-nitroethylene and various diamines in a mixture of water and ethanol. The new efficient domino protocol involving a sequence of N,N-acetal formation, Knoevenagel condensation, Michael reaction, imine-enamine tautomerization and N-cyclization as key steps. The merit of this catalyst free approach is highlighted by its easily available starting materials, operational simplicity, clean reaction profile, the use of environmentally benign solvents and tolerance of a wide variety of functional groups.
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Affiliation(s)
- Hajar Hosseini
- Department of Chemistry, Faculty of Science, Imam Khomeini International University Qazvin Iran +98 28 33780040
| | - Mohammad Bayat
- Department of Chemistry, Faculty of Science, Imam Khomeini International University Qazvin Iran +98 28 33780040
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35
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Liao Y, Huang B, Huang X, Cai M. Heterogeneous Copper-Catalyzed Cascade Three-Component Reaction Towards Imidazo[1,2-a]pyridines: Efficient and Practical One-Pot Synthesis of Alpidem. ChemistrySelect 2019. [DOI: 10.1002/slct.201900128] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yang Liao
- Key Laboratory of Functional Small Organic Molecule; Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 China
| | - Bin Huang
- Key Laboratory of Functional Small Organic Molecule; Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 China
| | - Xue Huang
- Key Laboratory of Functional Small Organic Molecule; Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule; Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 China
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36
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Wu J, Luo H, Wang T, Sun H, Zhang Q, Chai Y. Diverse synthesis of pyrimido[1,2-a]benzimidazoles and imidazo[2,1-b]benzothiazoles via CuI-catalyzed decarboxylic multicomponent reactions of heterocyclic azoles, aldehydes and alkynecarboxylic acids. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.01.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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37
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Roslan II, Ng KH, Jaenicke S, Chuah GK. Photocatalytic regeneration of brominating agent in the visible light-mediated synthesis of imidazo[1,2-a]pyridines. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00141g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Regenerating the brominating agent by erythrosine B closes a catalytic cycle for the construction of the imidazo[1,2-a]pyridine framework.
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Affiliation(s)
| | - Kian-Hong Ng
- Department of Chemistry
- National University of Singapore
- Singapore 117543
| | - Stephan Jaenicke
- Department of Chemistry
- National University of Singapore
- Singapore 117543
| | - Gaik-Khuan Chuah
- Department of Chemistry
- National University of Singapore
- Singapore 117543
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38
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Murlykina MV, Morozova AD, Zviagin IM, Sakhno YI, Desenko SM, Chebanov VA. Aminoazole-Based Diversity-Oriented Synthesis of Heterocycles. Front Chem 2018; 6:527. [PMID: 30555815 PMCID: PMC6282055 DOI: 10.3389/fchem.2018.00527] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 10/11/2018] [Indexed: 02/02/2023] Open
Abstract
The comprehensive review contains the analysis of literature data concerning reactions of heterocyclization of aminoazoles and demonstrates the application of these types of transformations in diversity-oriented synthesis. The review is oriented to wide range of chemists working in the field of organic synthesis and both experimental and theoretical studies of nitrogen-containing heterocycles.
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Affiliation(s)
- Maryna V Murlykina
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine
| | - Alisa D Morozova
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine
| | - Ievgen M Zviagin
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine
| | - Yana I Sakhno
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine
| | - Sergey M Desenko
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine.,Chemistry Faculty, Karazin Kharkiv National University, Kharkiv, Ukraine
| | - Valentyn A Chebanov
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals", National Academy of Sciences of Ukraine (NAS), Kharkiv, Ukraine.,Chemistry Faculty, Karazin Kharkiv National University, Kharkiv, Ukraine
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39
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Taherinia Z, Ghorbani-Choghamarani A, Hajjami M. Peptide Nanofiber Templated Zinc Oxide Nanostructures as Non-precious Metal Catalyzed N-Arylation of Amines, One-Pot Synthesis of ImidazoHeterocycles and Fused Quinazolines. Catal Letters 2018. [DOI: 10.1007/s10562-018-2580-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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40
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Sun W, Jiang W, Zhu G, Li Y. Magnetic Cu0@HAP@γ-Fe2O3 nanoparticles: An efficient catalyst for one-pot three-component reaction for the synthesis of imidazo[1,2-a]pyridines. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.07.039] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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41
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Tatsumi K, Fujihara T, Terao J, Tsuji Y. Copper-Catalyzed [4+2] Cycloaddition Using N
-(2-Pyridyl)ketimines and Terminal Alkynes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800704] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kenta Tatsumi
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering; Kyoto University; Nishikyo-ku Kyoto 615-8510 Japan
| | - Tetsuaki Fujihara
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering; Kyoto University; Nishikyo-ku Kyoto 615-8510 Japan
| | - Jun Terao
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering; Kyoto University; Nishikyo-ku Kyoto 615-8510 Japan
- Present address: Department of Basic Science, Graduate School of Arts and Sciences; The University of Tokyo; Tokyo 153-8902 Japan
| | - Yasushi Tsuji
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering; Kyoto University; Nishikyo-ku Kyoto 615-8510 Japan
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In Situ Generation of Cu0 Supported on TiO2 Aerogel as a Catalyst for the Vapour Phase Hydrogenation of Nitrobenzene to Aniline. Catal Letters 2018. [DOI: 10.1007/s10562-018-2481-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Maity P, Chaudhuri T, Mukhopadhyay C. A Facile, Convenient and Catalyst-Free One-Pot Route to Fluorescent Pyrrolo[3, 4-c]pyridines via Multicomponent Strategy in Aqueous Medium. ChemistrySelect 2018. [DOI: 10.1002/slct.201702677] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pampa Maity
- Department of Chemistry; University of Calcutta; 92 APC Road Kolkata-700009 India
| | - Tandrima Chaudhuri
- Department of Chemistry; Dr. B. N. Dutta Smriti Mahavidyalaya; Burdwan-713407 India
| | - Chhanda Mukhopadhyay
- Department of Chemistry; University of Calcutta; 92 APC Road Kolkata-700009 India
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44
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The Chemistry of Sulfur-Containing [5,5]-Fused Ring Systems With a Bridgehead Nitrogen. ADVANCES IN HETEROCYCLIC CHEMISTRY 2018. [DOI: 10.1016/bs.aihch.2017.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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45
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Kour D, Gupta A, Kapoor KK, Gupta VK, Rajnikant R, Singh D, Das P. Iodine–NH4OAc mediated regioselective synthesis of 2-aroyl-3-arylimidazo[1,2-a]pyridines from 1,3-diaryl-prop-2-en-1-ones. Org Biomol Chem 2018; 16:1330-1336. [DOI: 10.1039/c7ob02750h] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient, metal-free regioselective synthesis of 2-aroyl-3-arylimidazo[1,2-a]pyridines from 1,3-diaryl-prop-2-en-1-ones has been developed by their reaction with 2-aminopyridine in the presence of I2/NH4OAc.
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Affiliation(s)
- Dilpreet Kour
- Department of Chemistry
- University of Jammu
- Jammu-180006
- India
| | - Annah Gupta
- Department of Chemistry
- University of Jammu
- Jammu-180006
- India
| | | | - Vivek K. Gupta
- X-ray Crystallographic Group
- Department of Physics
- University of Jammu
- Jammu-180006
- India
| | - Rajnikant Rajnikant
- X-ray Crystallographic Group
- Department of Physics
- University of Jammu
- Jammu-180006
- India
| | - Deepika Singh
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu-180001
- India
| | - Parthasarathi Das
- Medicinal Chemistry Division
- CSIR-Indian Institute of Integrative Medicine
- Jammu-180001
- India
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46
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Ramya PS, Angapelly S, Digwal CS, Yadav U, Babu BN, Kamal A. An efficient RuCl 3 ·H 2 O/I 2 catalytic system: A facile access to 3-aroylimidazo[1,2- a ]pyridines from 2-aminopyridines and chalcones. JOURNAL OF SAUDI CHEMICAL SOCIETY 2018. [DOI: 10.1016/j.jscs.2017.07.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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47
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Hosseini H, Bayat M. Synthesis of 5-amino-N′-(9H-fluoren-9-ylidene)-8-nitro-7-aryl-1,2,3,7-tetrahydroimidazo[1,2-a]pyridine-6-carbohydrazide derivatives based on heterocyclic ketene aminals. RSC Adv 2018; 8:41218-41225. [PMID: 35559289 PMCID: PMC9091710 DOI: 10.1039/c8ra09308c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Accepted: 12/04/2018] [Indexed: 11/28/2022] Open
Abstract
A new class of tetrahydroimidazo[1,2-a]pyridine derivatives has been successfully prepared via a five-component domino reaction using cyanoacetohydrazide, 9-fluorenone, aromatic aldehydes, 1,1-bis(methylthio)-2-nitroethene and ethylenediamine in ethanol at reflux. The new efficient cascade approach involves a sequence of N,N-acetal formation, Knoevenagel condensation, Michael addition, imine–enamine tautomerization and N-cyclization as key steps. The merit of this protocol is highlighted by its available and economical starting compounds, operational simplicity, clean reaction profile and tolerance of a wide diversity of functional groups. A new class of tetrahydroimidazo[1,2-a]pyridine derivatives has been successfully prepared via a five-component domino reaction using cyanoacetohydrazide, 9-fluorenone, aromatic aldehydes, 1,1-bis(methylthio)-2-nitroethene and ethylenediamine in ethanol at reflux.![]()
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Affiliation(s)
- Hajar Hosseini
- Department of Chemistry
- Faculty of Science
- Imam Khomeini International University
- Qazvin
- Iran
| | - Mohammad Bayat
- Department of Chemistry
- Faculty of Science
- Imam Khomeini International University
- Qazvin
- Iran
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48
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Beerappa M, Shivashankar K. Four component synthesis of highly functionalized pyrano[2,3-c]pyrazoles from benzyl halides. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1386788] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Mallappa Beerappa
- Department of Chemistry, Bangalore University, Bangalore, Karnataka, India
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49
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Zhang B, Shan G, Ma Q, Xu Q, Lei X. An improved and scalable synthesis of zolpidem via a CuI/BINOL-mediated tandem reaction of imine and alkyne. HETEROCYCL COMMUN 2017. [DOI: 10.1515/hc-2017-0152] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
AbstractAn improved and scalable method for the synthesis of zolpidem (
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50
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Liu D, Guo W, Wu W, Jiang H. Base-Mediated Three-Component Tandem Reactions for the Synthesis of Multisubstituted Pyrimidines. J Org Chem 2017; 82:13609-13616. [DOI: 10.1021/acs.joc.7b02113] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dongqing Liu
- Key
Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, Key Laboratory of Functional
Molecular Engineering of Guangdong Province, South China University of Technology, Guangzhou 510640, China
| | - Wei Guo
- Key
Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, Key Laboratory of Functional
Molecular Engineering of Guangdong Province, South China University of Technology, Guangzhou 510640, China
- Key
Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Wanqing Wu
- Key
Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, Key Laboratory of Functional
Molecular Engineering of Guangdong Province, South China University of Technology, Guangzhou 510640, China
| | - Huanfeng Jiang
- Key
Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, Key Laboratory of Functional
Molecular Engineering of Guangdong Province, South China University of Technology, Guangzhou 510640, China
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