1
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Chowdhury MG, Kalmegh V, Kapoor S, Kamble V, Shard A. Imidazopyrimidine: from a relatively exotic scaffold to an evolving structural motif in drug discovery. RSC Med Chem 2024; 15:1488-1507. [PMID: 38784469 PMCID: PMC11110759 DOI: 10.1039/d3md00718a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 03/10/2024] [Indexed: 05/25/2024] Open
Abstract
Nitrogen-fused heterocycles are of immense importance in modern drug discovery and development. Among them, imidazopyrimidine is a highly versatile scaffold with vast pharmacological utility. These compounds demonstrate a broad spectrum of pharmacological actions, including antiviral, antifungal, anti-inflammatory, and anticancer. Their adaptable structure allows for extensive structural modifications, which can be utilized for optimizing pharmacological effects via structure-activity relationship (SAR) studies. Additionally, imidazopyrimidine derivatives are particularly noteworthy for their ability to target specific molecular entities, such as protein kinases, which are crucial components of various cellular signaling pathways associated with multiple diseases. Despite the evident importance of imidazopyrimidines in drug discovery, there is a notable lack of a comprehensive review that outlines their role in this field. This review highlights the ongoing interest and investment in exploring the therapeutic potential of imidazopyrimidine compounds, underscoring their pivotal role in shaping the future of drug discovery and clinical medicine.
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Affiliation(s)
- Moumita Ghosh Chowdhury
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER-A) Opposite Airforce Station, Palaj Gandhinagar Gujarat-382355 India
| | - Vaishnavi Kalmegh
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER-A) Opposite Airforce Station, Palaj Gandhinagar Gujarat-382355 India
| | - Saumya Kapoor
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER-A) Opposite Airforce Station, Palaj Gandhinagar Gujarat-382355 India
| | - Vaishnavi Kamble
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER-A) Opposite Airforce Station, Palaj Gandhinagar Gujarat-382355 India
| | - Amit Shard
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Ahmedabad (NIPER-A) Opposite Airforce Station, Palaj Gandhinagar Gujarat-382355 India
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2
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Javahershenas R. Application of phenacyl bromide analogs as a versatile organic intermediate for the synthesis of heterocyclic compounds via multicomponent reactions. Mol Divers 2023; 27:2399-2430. [PMID: 36229585 DOI: 10.1007/s11030-022-10544-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 10/04/2022] [Indexed: 10/17/2022]
Abstract
Due to the increased interest in heterocyclic compounds over the past decade, many pharmaceutical and organic chemists have explored the synthesis of various materials. Among the many organic compounds that can be synthesized in a wide range of chemical reactions, phenacyl bromide has proven to be a good, inexpensive, versatile, and efficient intermediate. This review presents an overview of the significant applications of phenacyl bromide, focusing on its role in recent synthetic advances and its utility in multicomponent reactions and literature reports for 2017 to the end of 2021.
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Affiliation(s)
- Ramin Javahershenas
- Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran.
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3
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Frecentese F, Sodano F, Corvino A, Schiano ME, Magli E, Albrizio S, Sparaco R, Andreozzi G, Nieddu M, Rimoli MG. The Application of Microwaves, Ultrasounds, and Their Combination in the Synthesis of Nitrogen-Containing Bicyclic Heterocycles. Int J Mol Sci 2023; 24:10722. [PMID: 37445897 DOI: 10.3390/ijms241310722] [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: 06/05/2023] [Revised: 06/20/2023] [Accepted: 06/24/2023] [Indexed: 07/15/2023] Open
Abstract
The use of alternative energy sources, such as microwaves (MW) or ultrasounds (US), and their mutual cross-combination have been widely described in the literature in the development of new synthetic methodologies in organic and medicinal chemistry. In this review, our attention is focused on representative examples, reported in the literature in the year range 2013-2023 of selected N-containing bicyclic heterocycles, with the aim to highlight the advantages of microwave- and ultrasound-assisted organic synthesis.
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Affiliation(s)
| | - Federica Sodano
- Department of Pharmacy, "Federico II" University of Naples, 80131 Naples, Italy
| | - Angela Corvino
- Department of Pharmacy, "Federico II" University of Naples, 80131 Naples, Italy
| | | | - Elisa Magli
- Department of Pharmacy, "Federico II" University of Naples, 80131 Naples, Italy
| | - Stefania Albrizio
- Department of Pharmacy, "Federico II" University of Naples, 80131 Naples, Italy
| | - Rosa Sparaco
- Department of Pharmacy, "Federico II" University of Naples, 80131 Naples, Italy
| | - Giorgia Andreozzi
- Department of Pharmacy, "Federico II" University of Naples, 80131 Naples, Italy
| | - Maria Nieddu
- Department of Medicine, Surgery and Pharmacy, University of Sassari, 07100 Sassari, Italy
| | - Maria Grazia Rimoli
- Department of Pharmacy, "Federico II" University of Naples, 80131 Naples, Italy
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4
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Murugesan T, Elikkottil A, Kaliyamoorthy A. Palladium-Catalyzed Regioselective C3-Allylic Alkylation of 2-Aryl Imidazopyridines with MBH Carbonates. J Org Chem 2023; 88:2655-2665. [PMID: 36719167 DOI: 10.1021/acs.joc.2c03001] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Imidazopyridine is an important framework that constitutes several pharmaceutical drugs and biologically active molecules. Herein, we present the palladium-catalyzed regioselective C3-allylic alkylation of 2-aryl imidazopyridines with MBH carbonates. This strategy furnishes a broad spectrum of C3-allylated imidazopyridines, and their structures have been unequivocally established using X-ray analysis. Besides, the reaction can be easily scaled up on a gram scale, and the ensuing product can be smoothly manipulated into synthetically useful entities.
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Affiliation(s)
- Tamilarasu Murugesan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
| | - Afna Elikkottil
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
| | - Alagiri Kaliyamoorthy
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
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5
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Simple and efficient PET and AIEE mechanism-based fluorescent probes for sensing Tabun mimic DCNP. Anal Chim Acta 2023; 1239:340727. [PMID: 36628772 DOI: 10.1016/j.aca.2022.340727] [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: 10/01/2022] [Revised: 12/11/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
The highly sensitive, selective, easy-to-prepare, aqueous media based on two novel probes 2-(pyren-1-yl)imidazo[1,2-a]pyridine (IMP-Py) and (2-(pyren-1-yl)imidazo[1,2-a]pyridin-3-yl)methanol (IMP-Py-OH) are synthesized for the detection of toxic chemical warfare nerve agent mimic diethylcyanochlorophosphonate (DCNP). Both probes are found effective in the detection of DCNP but comparatively, IMP-Py shows better properties in terms of instantaneous response, specificity, selectivity and a low detection limit of 16.9 nM. A significant enhancement of fluorescence intensity of IMP-Py due to aggregation-induced emission enhancement (AIEE) and photoinduced electron transfer (PET) phenomenon was inhibited due to phosphorylation of the hydroxy group of IMP-Py-OH in presence of DCNP has been observed. Taking the advantages of good sensitivity and fast response, probe IMP-Py has been fabricated into a viable paper strips portable product, tested for its potential for the detection of DCNP in tap water as well as with its vapor and response is visible under a UV lamp of 365 nm wavelength.
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6
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Synthesis and cytotoxic/antimicrobial screening of 2-alkenylimidazo[1,2-a]pyrimidines. Med Chem Res 2022. [DOI: 10.1007/s00044-022-02997-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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7
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Padmaja P, Reddy PN, Reddy BS, Tiwari AK, Ugale VG, Komati A, Sridhar B. Design, synthesis, in vitro α-glucosidase inhibitory, antioxidant activity and molecular docking studies of novel pyridine linked imidazo[1,2-a]pyridine derivatives. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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8
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Choudhary D, Garg S, Kaur M, Sohal HS, Malhi DS, Kaur L, Verma M, Sharma A, Mutreja V. Advances in the Synthesis and Bio-Applications of Pyrazine Derivatives: A Review. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2092873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Dimple Choudhary
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
| | - Sonali Garg
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
| | - Manvinder Kaur
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
| | - Harvinder Singh Sohal
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
| | - Dharambeer Singh Malhi
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
| | - Loveleen Kaur
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
| | - Meenakshi Verma
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
| | - Ajay Sharma
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
| | - Vishal Mutreja
- Medicinal and Natural Product Laboratory, Department of Chemistry, Chandigarh University, Mohali, India
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9
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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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10
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Li W, Zhang J, Wang M, Dong R, Zhou X, Zheng X, Sun L. Pyrimidine-fused Dinitrogenous Penta-heterocycles as a Privileged Scaffold for Anti-Cancer Drug Discovery. Curr Top Med Chem 2022; 22:284-304. [PMID: 35021973 DOI: 10.2174/1568026622666220111143949] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 12/30/2021] [Accepted: 12/30/2021] [Indexed: 11/22/2022]
Abstract
Pyrimidine-fused derivatives that are the inextricable part of DNA and RNA play a key role in the normal life cycle of cells. Pyrimidine-fused dinitrogenous penta-heterocycles including pyrazolopyrimidines and imidazopyrimidines is a special class of pyrimidine-fused compounds contributing to an important portion in anti-cancer drug discovery, which have been discovered as core structure for promising anti-cancer agents used in clinic or clinical evaluations. Pyrimidine-fused dinitrogenous penta-heterocycles have become one privileged scaffold for anti-cancer drug discovery. This review consists of the recent progress of pyrimidine-fused dinitrogenous penta-heterocycles as anti-cancer agents and their synthetic strategies. In addition, this review also summarizes some key structure-activity relationships (SARs) of pyrimidine-fused dinitrogenous penta-heterocycle derivatives as anti-cancer agents.
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Affiliation(s)
- Wen Li
- Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
| | - Jinyang 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
| | - Ru Dong
- Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
| | - Xin Zhou
- Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
| | - Xin Zheng
- Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
| | - Liping Sun
- Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
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11
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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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12
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Abstract
2-Aminopyridine is a simple, low molecular weight and perfectly functionalised moiety known for the synthesis of diverse biological molecules. Many pharmaceutical companies across the globe aim to synthesise low-molecular weight molecules for use as pharmacophores against various biological targets. 2-Aminopyridine can serve as a perfect locomotive in the synthesis and pulling of such molecules towards respective pharmacological goals. The major advantage of this moiety is its simple design, which can be used to produce single products with minimum side reactions. Moreover, the exact weight of synthesised compounds is low, which enables facile identification of toxicity-causing metabolites in drug discovery programmes. This manuscript is a quick review of such pharmacophores derived from 2-aminopyridine.
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Affiliation(s)
- Ramdas Nishanth Rao
- Department of Chemistry, School of Advanced Science, Vellore Institute of Technology, Vellore 632014, India.
| | - Kaushik Chanda
- Department of Chemistry, School of Advanced Science, Vellore Institute of Technology, Vellore 632014, India.
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13
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Kumar K. Microwave‐assisted diversified synthesis of pyrimidines: An overview. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4376] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kapil Kumar
- School of Pharmacy and Technology Management SVKM'S NMIMS (deemed to be University) Jadcherla India
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14
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Rao RN, Chanda K. An expeditious microwave assisted one-pot sequential route to pyrido fused imidazo[4,5- c] quinolines in green media. NEW J CHEM 2021. [DOI: 10.1039/d0nj05835a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A novel one-pot sequential route for the synthesis of pyrido[2′,1′:2,3]imidazo[4,5-c]quinolines via microwave-assisted sequential reaction of 2-aminopyridines, 2-bromophenacyl bromides, and aldehydes has been developed in green media.
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Affiliation(s)
- Ramdas Nishanth Rao
- Department of Chemistry
- School of Advanced Science
- Vellore Institute of Technology
- Vellore-632014
- India
| | - Kaushik Chanda
- Department of Chemistry
- School of Advanced Science
- Vellore Institute of Technology
- Vellore-632014
- India
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15
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Lambat TL, Chopra PKPG, Mahmood SH. Microwave: A Green Contrivance for the Synthesis of N-Heterocyclic Compounds. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999200622114919] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Microwave Mediated Organic Synthesis (MMOS) is typical on the proficient heat
shift carried out by dielectric heating, which in turn, is primarily dependent on the capability
of the reagent or solvent to take up microwave energy. The employment of microwave energy
has witnessed a fast expansion in the past two decades, with novel and pioneering
applications in peptide and organic synthesis, material sciences, polymer chemistry, biochemical
processes and nanotechnology. This review summarizes current MW- mediated
catalytic reactions in use for the synthesis of a diversity of N-heterocycles by Multi-
Component Reactions (MCRs) and a variety of miscellaneous reactions. In addition, the
review addresses some aspects of the use of nanoparticles for a diversity of applications in
microwave chemistry.
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Affiliation(s)
- Trimurti L. Lambat
- Department of Chemistry, Manoharbhai Patel College of Arts, Commerce & Science, Deori, Gondia 441901, Maharashtra, India
| | - Paavan Kavi Param Gaitry Chopra
- Department of Chemistry, Government Institute of Science, Civil lines, Rabindranath Tagore Road, Nagpur 440001, Maharashtra, India
| | - Sami H. Mahmood
- Department of Physics, The University of Jordan, Amman 11942, Jordan
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16
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Saikia AA, Rao RN, Maiti B, Balamurali MM, Chanda K. Diversity-Oriented Synthesis of Thiazolidine-2-imines via Microwave-Assisted One-Pot, Telescopic Approach and Its Interaction with Biomacromolecules. ACS COMBINATORIAL SCIENCE 2020; 22:630-640. [PMID: 32820896 DOI: 10.1021/acscombsci.0c00083] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In this work, a one-pot, telescopic approach is described for the combinatorial library of thiazolidine-2-imines. The synthetic manipulation proceeds smoothly via the reaction of 2-aminopyridine/pyrazine/pyrimidine with substituted isothiocyanates followed by base catalyzed ring closure with 1,2-dibromoethane to obtain thiazolidine-2-imines with broad substrate scope and high functional group tolerance. The synthetic strategy merges well with the thiourea formation followed by base catalyzed ring closure reaction for the thiazolidine-2-imine synthesis in a more modular and straightforward approach. The synthetic procedure reported herein represents a cleaner route toward thiazolidine-2-imines as compared to traditional methodologies. Moreover, the biological significance of combinatorially synthesized thiazolidin-2-imines has been investigated for their use as possible inhibitors for acetyl cholinesterase through molecular docking studies.
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Affiliation(s)
- Ananya Anubhav Saikia
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, India
| | - Ramdas Nishanth Rao
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, India
| | - Barnali Maiti
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, India
| | | | - Kaushik Chanda
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, India
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17
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Godugu K, Nallagondu CGR. Solvent and catalyst‐free synthesis of imidazo[1,2‐a]pyridines by grindstone chemistry. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4164] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Kumar Godugu
- Department of Chemistry, Green and Sustainable Synthetic Organic Chemistry Laboratory Yogi Vemana University Kadapa India
| | - Chinna Gangi Reddy Nallagondu
- Department of Chemistry, Green and Sustainable Synthetic Organic Chemistry Laboratory Yogi Vemana University Kadapa India
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18
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Huang X, Zhang L, Wei L, Wang M, Li B, Guo B, Ma M. One-Pot Derivatization for Wide-Scope Detection of Nucleobases and Deoxyribosides in Natural Medicinal Foods with Liquid Chromatography-Tandem Mass Spectrometry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:10200-10212. [PMID: 32853523 DOI: 10.1021/acs.jafc.0c03328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A new chemical labeling-based LC-MS/MS approach was developed for quantitative profiling of nine canonical bases and deoxynucleosides (dNs) in natural products. Using 2-bromo-1-(4-dimethylamino-phenyl)-ethaone (BrDPE) as the tagging reagent, a previously unexploited N-alkylpyrimidine derivative (Nad) was created for one-pot labeling of widescope nucleobases via a flexible bromophilic substitution under mild conditions. The derivatization notably improved the LC-MS detection sensitivity by 31-107 fold, enabling a fast dilute-and-shoot analysis of highly diluted samples. The optimized and validated method demonstrated satisfactory accuracy (87-107%), precision (RSDs < 7.5%), and recovery (89-105%) for matrix-matched standard addition. The method was applied to simultaneously determine all target analytes and four uncanonical analogues and base-modified species in seven traditional health foods, which differ in contents by up to 600-fold for discrimination among samples. Further, the base-labeled Nads exhibit a unique fragmentation signature that could be used for untargeted screening of nucleobase-containing metabolites by simplified LC-MS/MS workflow to improve quality evaluation of natural medicinal products.
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Affiliation(s)
- Xingrong Huang
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, China
| | - Lu Zhang
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, China
| | - Lijuan Wei
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, China
| | - Meiling Wang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Bowen Li
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, China
| | - Bin Guo
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, China
| | - Ming Ma
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, China
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19
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Saikia AA, Nishanth Rao R, Das S, Jena S, Rej S, Maiti B, Chanda K. Sequencing [3+2]-cycloaddition and multicomponent reactions: A regioselective microwave-assisted synthesis of 1,4-disubstituted 1,2,3-triazoles using ionic liquid supported Cu(II) precatalysts in methanol. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152273] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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20
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Rao RN, Panchangam RL, Manickam V, Balamurali MM, Chanda K. Synthesis and Antitumor Activity Evaluation of Cyclometalated
2H‐
Indazole Ruthenium(II) and Iridium(III) Complexes. Chempluschem 2020; 85:1800-1812. [DOI: 10.1002/cplu.202000516] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 07/29/2020] [Indexed: 01/07/2023]
Affiliation(s)
- Ramdas Nishanth Rao
- Department of ChemistrySchool of Advanced ScienceVellore Institute of Technology Vellore 632014 India
| | - Rajeeva Lochana Panchangam
- Department of BiosciencesSchool of Biosciences and TechnologyVellore Institute of Technology Vellore 632014 India
| | - Venkatraman Manickam
- Department of BiosciencesSchool of Biosciences and TechnologyVellore Institute of Technology Vellore 632014 India
| | - Musuvathi Motilal Balamurali
- Chemistry DivisionSchool of Advanced SciencesVellore Institute of Technology Chennai Campus Chennai 600127 India
| | - Kaushik Chanda
- Department of ChemistrySchool of Advanced ScienceVellore Institute of Technology Vellore 632014 India
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21
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Ali TE, Bakhotmah DA, Assiri MA. Synthesis of some new functionalized pyrano[2,3-c]pyrazoles and pyrazolo[4′,3′:5,6] pyrano[2,3-d]pyrimidines bearing a chromone ring as antioxidant agents. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1800744] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Tarik E. Ali
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
- Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Egypt
| | - Dina A. Bakhotmah
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohammed A. Assiri
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
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22
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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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23
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Rodríguez JC, Maldonado RA, Ramírez‐García G, Díaz Cervantes E, Cruz FN. Microwave‐assisted synthesis and luminescent activity of imidazo[1,2‐
a
]pyridine derivatives. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3950] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Juan C. Rodríguez
- Departamento de Química Orgánica, Facultad de Ciencias QuímicasUniversidad Autónoma de Coahuila, Ing. J. Cárdenas Valdez S/N Saltillo Mexico
| | - Rony A. Maldonado
- Departamento de Química Orgánica, Facultad de Ciencias QuímicasUniversidad Autónoma de Coahuila, Ing. J. Cárdenas Valdez S/N Saltillo Mexico
| | - Gonzalo Ramírez‐García
- Cátedras CONACYT, Departamento de Biociencias y Agrotecnología, Centro de Investigación en Química Aplicada Saltillo Mexico
| | - Erik Díaz Cervantes
- Departamento de Alimentos, Centro Interdisciplinario del Noreste (CINUG)Universidad de Guanajuato Guanajuato Mexico
| | - Fabiola N. Cruz
- Departamento de Química Orgánica, Facultad de Ciencias QuímicasUniversidad Autónoma de Coahuila, Ing. J. Cárdenas Valdez S/N Saltillo Mexico
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24
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Singh I, Luxami V, Paul K. Synthesis, cytotoxicity, pharmacokinetic profile, binding with DNA and BSA of new imidazo[1,2-a]pyrazine-benzo[d]imidazol-5-yl hybrids. Sci Rep 2020; 10:6534. [PMID: 32300169 PMCID: PMC7162861 DOI: 10.1038/s41598-020-63605-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 04/02/2020] [Indexed: 11/13/2022] Open
Abstract
Novel derivatives possessing imidazo[1,2-a]pyrazine and 1H-benzo[d]imidazole scaffolds were synthesized using Suzuki-Miyaura cross-coupling reactions. In vitro anticancer activities against NCI-60 cancer cell panels were tested at 10 µM concentration. The best results were obtained from substitution of two 1-cyclohexyl-1H-benzo[d]imidazole groups present at C-6 and C-8 positions of imidazo[1,2-a]pyrazine (31). Compound 31 was found to be cytotoxic against 51 cell lines and cytostatic against 8 cell lines with broad range of growth inhibitions (−98.48 to 98.86%). GI50 value of compound 31 was found in the range of 0.80–2.87 µM for 59 human cancer cell lines at five-dose concentration levels. DNA binding study of potent compound 31 was suggested that this compound was intercalated into DNA base pairs with binding constant of 1.25 × 104 M−1. Compound 31 showed effective binding with bovine serum albumin (BSA) and presented binding constant value of 3.79 ×104 M-1. Pharmacokinetic studies revealed that all compounds are following Lipinski’s rule of five and expected to be orally active.
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Affiliation(s)
- Iqubal Singh
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, 147001, India
| | - Vijay Luxami
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, 147001, India
| | - Kamaldeep Paul
- School of Chemistry and Biochemistry, Thapar Institute of Engineering and Technology, Patiala, 147001, India.
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25
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Rao RN, Chanda K. An assessment study of known pyrazolopyrimidines: Chemical methodology and cellular activity. Bioorg Chem 2020; 99:103801. [PMID: 32278206 DOI: 10.1016/j.bioorg.2020.103801] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 03/22/2020] [Accepted: 03/24/2020] [Indexed: 10/24/2022]
Abstract
Heterocyclic compounds with nitrogen atom play a key role in the normal life cycle of a cell. Pyrazolopyrimidine is a privileged class of nitrogen containing fused heterocyclic compound contributing to a major portion of all lead molecules in medicinal chemistry. The thumbprint of pyrazolopyrimidine as a pharmacophore is always noticeable due to its analogy with the adenine base in DNA. Pyrazolopyrimidines are divided into five types [I, II, III, IV, V] based on the mechanism of action on the specific target conferring a wide scope of research which has accelerated the interest of researchers to investigate its biological profile. In 1956, the anti-cancer activity of pyrazolopyrimidine was evaluated for the first time with appreciable results. Since then, medicinal chemists centered their work on various methods of synthesis and evaluating the biological profile of pyrazolopyrimidine isomers. This report consists of novel methodologies followed to synthesize pyrazolopyrimidine isomers along with a note on their biological significance. To the best of our knowledge, this review article will be first of its kind to encompass different synthetic procedures along with anti-cancer, kinase inhibition, phosphodiesterase inhibition and receptor blocking activity of pyrazolopyrimidine moieties. IC50 values of potent compounds are added wherever necessary to understand the suitability of pyrazolopyrimidine skeletons for a specific biological activity.
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Affiliation(s)
- R Nishanth Rao
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, India
| | - Kaushik Chanda
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, India
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26
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Mukku N, Maiti B. On water catalyst-free synthesis of benzo[ d]imidazo[2,1- b] thiazoles and novel N-alkylated 2-aminobenzo[ d]oxazoles under microwave irradiation. RSC Adv 2020; 10:770-778. [PMID: 35494448 PMCID: PMC9047639 DOI: 10.1039/c9ra08929b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 12/10/2019] [Indexed: 12/15/2022] Open
Abstract
A highly efficient unprecedented catalyst-free microwave-assisted procedure for synthesizing benzo[d]imidazo[2,1-b]thiazoles and N-alkylated 2-aminobenzo[d]oxazol in green media was developed. The transformation provided rapid access to functionalized benzo[d]imidazo[2,1-b]thiazoles from 2-aminobenzothiazole and N-alkylated 2-aminobenzo[d]oxazole from 2-aminobenzoxazole scaffolds under mild transition-metal-free conditions. This synthetic manipulation is expected to greatly expand the repertoire of reaction types in heterocyclic chemistry and pave the way for new syntheses of bioactive compounds. A highly efficient unprecedented catalyst-free microwave-assisted procedure for synthesizing benzo[d]imidazo[2,1-b]thiazoles and N-alkylated 2-aminobenzo[d]oxazol in green media was developed.![]()
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Affiliation(s)
- Narasimharao Mukku
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology Vellore-632014 India
| | - Barnali Maiti
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology Vellore-632014 India
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27
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Soni JP, Chemitikanti KS, Joshi SV, Shankaraiah N. The microwave-assisted syntheses and applications of non-fused single-nitrogen-containing heterocycles. Org Biomol Chem 2020; 18:9737-9761. [PMID: 33211792 DOI: 10.1039/d0ob01779e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Microwave technology has emerged as a great tool for the efficient synthesis of organic compounds and it provides opportunities for chemists to achieve chemical transformations that tend to be challenging using classical approaches. Additionally, N-heterocycles are well-known for their medicinal/biological significance, along with their applications as excellent building blocks in chemical synthesis. The dominance of N-heterocycles in drug molecules and other pharmacological agents makes them attractive scaffolds, which encourages chemists to develop a wide range of strategies towards the greener synthesis and functionalization of these heterocycles. In this regard, we have collated and discussed literature relating to the microwave-assisted synthesis and the modification of non-(benzo)fused single-nitrogen-containing N-heterocycles from the past decade. The role of the microwave technique and its benefits over the conventional approach have also been emphasized in terms of overall reaction efficiency, reaction time, yield, reduced side-product generation, neat and clean reactions, chemo-/regio-/enantio-selectivity, and the use of mild reagents/reaction conditions to achieve the objectives of green and sustainable chemistry.
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Affiliation(s)
- Jay Prakash Soni
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad - 500037, India.
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28
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Padmaja RD, Chanda K. A robust and recyclable ionic liquid-supported copper(II) catalyst for the synthesis of 5-substituted-1H-tetrazoles using microwave irradiation. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-04035-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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29
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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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30
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Zhang M, Chen MN, Li JM, Liu N, Zhang ZH. Visible-Light-Initiated One-Pot, Three-Component Synthesis of 2-Amino-4 H-pyran-3,5-dicarbonitrile Derivatives. ACS COMBINATORIAL SCIENCE 2019; 21:685-691. [PMID: 31433619 DOI: 10.1021/acscombsci.9b00124] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A novel approach for the visible-light-initiated synthesis of 2-amino-4H-pyran-3,5-dicarbonitrile derivatives via a one-pot, three-component reaction of aldehydes or isatins, malononitrile, and α-cyano ketones has been developed. The reaction was carried out at room temperature in ethanol/water to give the corresponding products with a wide range of functional groups in high yields. This process did not require any additives or chromatographic separation and could be applied for gram-scale synthesis.
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Affiliation(s)
- Mo Zhang
- National Demonstration Center for Experimental Chemistry Education, Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University, No. 20 South Second Ring East Road, Shijiazhuang 050024, P. R. China
| | - Meng-Nan Chen
- National Demonstration Center for Experimental Chemistry Education, Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University, No. 20 South Second Ring East Road, Shijiazhuang 050024, P. R. China
| | - Jiao-Mian Li
- National Demonstration Center for Experimental Chemistry Education, Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University, No. 20 South Second Ring East Road, Shijiazhuang 050024, P. R. China
| | - Nan Liu
- National Demonstration Center for Experimental Chemistry Education, Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University, No. 20 South Second Ring East Road, Shijiazhuang 050024, P. R. China
| | - Zhan-Hui Zhang
- National Demonstration Center for Experimental Chemistry Education, Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University, No. 20 South Second Ring East Road, Shijiazhuang 050024, P. R. China
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31
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Padmaja RD, Balamurali MM, Chanda K. One-Pot, Telescopic Approach for the Chemoselective Synthesis of Substituted Benzo[e]pyrido/pyrazino/pyridazino[1,2-b][1,2,4]thiadiazine dioxides and Their Significance in Biological Systems. J Org Chem 2019; 84:11382-11390. [DOI: 10.1021/acs.joc.9b00869] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | | | - Kaushik Chanda
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, India
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32
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Gholivand K, Mohammadpanah F, Pooyan M, Valmoozi AAE, Sharifi M, Mani-Varnosfaderani A, Hosseini Z. Synthesis, crystal structure, insecticidal activities, molecular docking and QSAR studies of some new phospho guanidines and phospho pyrazines as cholinesterase inhibitors. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2019; 157:122-137. [PMID: 31153459 DOI: 10.1016/j.pestbp.2019.03.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 03/10/2019] [Accepted: 03/14/2019] [Indexed: 06/09/2023]
Abstract
Novel phospho guanidine and phospho pyrazine derivatives were synthesized and characterized by 31P, 13C, 1HNMR and IR spectroscopy to obtain novel and human-safe insecticides. Compound 35 [(C4H4N2NH)2P(O)(C6H6)] was investigated by X-ray crystallography. The inhibitory effects of synthesized compounds were evaluated on human and insect acetylcholinesterase (AChE) using in vitro Ellman method. A few of these compounds, which had low human toxicity, were selected for assessing the killing effects (in vivo) on the elm leaf beetle (X.luteola). The in vitro and in vivo results indicated that compounds bearing both phosphoryl groups and aromatic systems were found to possess a good selectivity for the inhibition of insect AChE over human AChE; up to 550-fold selectivity was achieved for compound 19. Docking studies were performed to explain reasons for the selective behavior of AChE inhibitors. Additionally, the quantitative structure-activity relationship (QSAR) and density functional theory (DFT) results of AChEs demonstrated that the size, shape, dipole moment, and ability to form hydrogen bond played the main role in both models. In addition, the aromatic π - π interactions and charge of the amide nitrogen had a major effect on insecticidal activity of the compounds. The present research can be helpful to gain a better understanding of the interactions between the insect AChE and its inhibitors and introduces compounds which are capable of becoming human-safe insecticides.
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Affiliation(s)
| | | | - Mahsa Pooyan
- Department of Chemistry, Tarbiat Modares University, Tehran, Iran
| | | | - Mahboobeh Sharifi
- Department of plant protection, Agricultural and Natural Resources Research Center, ARREO, Gorgan, Iran
| | | | - Zahra Hosseini
- Department of Chemistry, Tarbiat Modares University, Tehran, Iran
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33
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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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34
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Panchangam RL, Manickam V, Chanda K. Assembly of Fully Substituted 2H-Indazoles Catalyzed by Cu 2 O Rhombic Dodecahedra and Evaluation of Anticancer Activity. ChemMedChem 2018; 14:262-272. [PMID: 30422389 DOI: 10.1002/cmdc.201800707] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Indexed: 11/06/2022]
Abstract
Simultaneous C-N, and N-N bond-forming methods for one-pot transformations are highly challenging in synthetic organic chemistry. In this study, the Cu2 O rhombic dodecahedra-catalyzed synthesis of 2H-indazoles is demonstrated with good to excellent yields from readily available chemicals. This one-pot procedure involves Cu2 O nanoparticle-catalyzed consecutive C-N, and N-N bond formation followed by cyclization to yield 2H-indazoles with broad substrate scope and high functional group tolerance. Various cell-based bioassay studies demonstrated that 2H-indazoles inhibit the growth of cancer cells, typically through induction of apoptosis in a dose-dependent manner. Moreover, 2H-indazoles tested in the MDA-MB-468 cell line were capable of inhibiting cancer cell migration and invasion. Thus, it is shown that 2H-indazoles have potent in vitro anticancer activity that warrant further investigation of this compound class.
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Affiliation(s)
- Rajeeva Lochana Panchangam
- Department of Biosciences, School of Bioscience and Technology, Vellore Institute of Technology, Vellore, 632014, India
| | - Venkatraman Manickam
- Department of Biosciences, School of Bioscience and Technology, Vellore Institute of Technology, Vellore, 632014, India
| | - Kaushik Chanda
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, 632014, India
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35
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Berrino E, Supuran CT. Advances in microwave-assisted synthesis and the impact of novel drug discovery. Expert Opin Drug Discov 2018; 13:861-873. [DOI: 10.1080/17460441.2018.1494721] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Emanuela Berrino
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche, University of Florence, Sesto Fiorentino (Florence), Italy
| | - Claudiu T. Supuran
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche, University of Florence, Sesto Fiorentino (Florence), Italy
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36
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Padmaja RD, Devi C. V, Mukku N, Chanda K, Maiti B. Rapid Construction of an Imidazo[4,5- b]pyridine Skeleton from 2-Chloro-3-nitropyridine via Tandem Reaction in H 2O-IPA Medium. ACS OMEGA 2018; 3:4583-4590. [PMID: 31458681 PMCID: PMC6641603 DOI: 10.1021/acsomega.8b00426] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 04/13/2018] [Indexed: 05/05/2023]
Abstract
A highly efficient, clean, and simple procedure for the synthesis of a privilege imidazo[4,5-b]pyridine scaffold from 2-chloro-3-nitropyridine in combination with environmentally benign H2O-IPA as a green solvent is presented. The scope of the novel method has been demonstrated through the tandem sequence of SNAr reaction with substituted primary amines followed by the in situ nitro group reduction and subsequent heteroannulation with substituted aromatic aldehydes to obtain functionalized imidazo[4,5-b]pyridines with only one chromatographic purification step. The synthesis pathway appears to be green, simple, and superior compared with other already reported procedures, with the high abundance of reagents and great ability in expanding the structural diversity.
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37
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Padmaja RD, Chanda K. A Short Review on Synthetic Advances toward the Synthesis of Rufinamide, an Antiepileptic Drug. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.7b00373] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- R. D. Padmaja
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore-632014, India
| | - Kaushik Chanda
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore-632014, India
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