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Alkaltham MF, Almansour AI, Arumugam N, Vagolu SK, Tønjum T, Alaqeel SI, Rajaratnam S, Sivaramakrishnan V. Activity against Mycobacterium tuberculosis of a new class of spirooxindolopyrrolidine embedded chromanone hybrid heterocycles. RSC Adv 2024; 14:11604-11613. [PMID: 38605893 PMCID: PMC11008671 DOI: 10.1039/d4ra01501k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/02/2024] [Indexed: 04/13/2024] Open
Abstract
A new class of structurally intriguing heterocycles embedded with spiropyrrolidine, oxindole and chromanones was prepared by regio- and stereoselectively in quantitative yields using an intermolecular tandem cycloaddition protocol. The compounds synthesized were assayed for their anti-mycobacterial activity against Mycobacterium tuberculosis (Mtb) H37Rv and isoniazid-resistant (katG and inhA promoter mutations) clinical Mtb isolates. Four compounds exhibited significant antimycobacterial activity against Mtb strains tested. In particular, a compound possessing a fluorine substituted derivative displayed potent activity at 0.39 μg mL-1 against H37Rv, while it showed 0.09 μg mL-1 and 0.19 μg mL-1 activity against inhA promoter and katG mutation isolates, respectively. A molecular docking study was conducted with the potent compound, which showed results that were consistent with the in vitro experiments.
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Affiliation(s)
- Manal Fahad Alkaltham
- Department of Chemistry, College of Science, King Saud University P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Abdulrahman I Almansour
- Department of Chemistry, College of Science, King Saud University P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Natarajan Arumugam
- Department of Chemistry, College of Science, King Saud University P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Siva Krishna Vagolu
- Department of Microbiology, University of Oslo N-0316 Oslo Norway
- Department of Microbiology, Oslo University Hospital N-0424 Oslo Norway
| | - Tone Tønjum
- Department of Microbiology, University of Oslo N-0316 Oslo Norway
- Department of Microbiology, Oslo University Hospital N-0424 Oslo Norway
| | - Shatha Ibrahim Alaqeel
- Department of Chemistry, College of Science, King Saud University (034) Riyadh 11495 Saudi Arabia
| | - Saiswaroop Rajaratnam
- Disease Biology Lab, Department of Biosciences, Sri Sathya Sai Institute of Higher Learning Prasanthi Nilayam Anantapur Andhra Pradesh India
| | - Venketesh Sivaramakrishnan
- Disease Biology Lab, Department of Biosciences, Sri Sathya Sai Institute of Higher Learning Prasanthi Nilayam Anantapur Andhra Pradesh India
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2
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Vasanthan RJ, Pradhan S, Thangamuthu MD. Emerging Aspects of Triazole in Organic Synthesis: Exploring its Potential as a Gelator. Curr Org Synth 2024; 21:456-512. [PMID: 36221871 DOI: 10.2174/1570179420666221010094531] [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: 05/19/2022] [Revised: 09/06/2022] [Accepted: 09/13/2022] [Indexed: 11/22/2022]
Abstract
Cu(I)-catalyzed azide-alkyne 1,3-dipolar cycloaddition (CuAAC) - commonly known as the "click reaction" - serves as the most effective and highly reliable tool for facile construction of simple to complex designs at the molecular level. It relates to the formation of carbon heteroatomic systems by joining or clicking small molecular pieces together with the help of various organic reactions such as cycloaddition, conjugate addition, ring-opening, etc. Such dynamic strategy results in the generation of triazole and its derivatives from azides and alkynes with three nitrogen atoms in the five-membered aromatic azole ring that often forms gel-assembled structures having gelating properties. These scaffolds have led to prominent applications in designing advanced soft materials, 3D printing, ion sensing, drug delivery, photonics, separation, and purification. In this review, we mainly emphasize the different mechanistic aspects of triazole formation, which includes the synthesis of sugar-based and non-sugar-based triazoles, and their gel applications reported in the literature for the past ten years, as well as the upcoming scope in different branches of applied sciences.
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Affiliation(s)
- Rabecca Jenifer Vasanthan
- Department of Chemistry, School of Basic and Applied Sciences, Central University of Tamil Nadu (CUTN), Thiruvarur, 610 005, India
| | - Sheersha Pradhan
- Department of Chemistry, School of Basic and Applied Sciences, Central University of Tamil Nadu (CUTN), Thiruvarur, 610 005, India
| | - Mohan Das Thangamuthu
- Department of Chemistry, School of Basic and Applied Sciences, Central University of Tamil Nadu (CUTN), Thiruvarur, 610 005, India
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3
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Qadir T, Kanth SA, Aasif M, Fadul AN, Yatoo GN, Jangid K, Mir MA, Shah WA, Sharma PK. Design, synthesis, and unraveling the antibacterial and antibiofilm potential of 2-azidobenzothiazoles: insights from a comprehensive in vitro study. Front Chem 2023; 11:1264747. [PMID: 37744062 PMCID: PMC10513370 DOI: 10.3389/fchem.2023.1264747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 08/25/2023] [Indexed: 09/26/2023] Open
Abstract
The present study reports the synthesis of 2-azidobenzothiazoles from substituted 2-aminobenzothiazoles using sodium nitrite and sodium azide under mild conditions. All the synthesized compounds were examined for their antibacterial activity against Gram (+) bacteria, Staphylococcus aureus (ATCC 25923), Enterococcus faecalis (ATCC 51299), Bacillus cereus (ATCC 10876) and Gram (-) bacteria, Escherichia coli (ATCC 10536), Pseudomonas aeruginosa (ATCC 10145), Klebsiella pneumonia (ATCC BAA-2146)and clinical isolates of Gram (+) Methicillin Resistant S. aureus (MRSA) and Multi Drug Resistant E. coli. The Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) values by broth dilution method revealed that compound 2d exhibited significant antibacterial potential against E. faecalis and S. aureus with MIC of 8 μg/mL, while other synthesized compounds had only moderate effects against all the tested species. The compound significantly inhibited the biofilm formation of the bacterial strains below its MIC. The selective cytotoxicity of Compound 2d towards bacterial cells was evidenced on extended exposure of Human Embryonic Kidney-293 cell line to higher concentrations of the compound. Hence, the present study confirmed that compound 2d can be a potential drug candidate for future development as an antibacterial drug.
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Affiliation(s)
- Tanzeela Qadir
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara, India
| | - Saadat A. Kanth
- Centre of Research for Development and P.G Programme in Microbiology, School of Biological Sciences, University of Kashmir, Srinagar, Jammu and Kashmir, India
| | - Mohammad Aasif
- Department of Chemistry, National Institute of Technology, Srinagar, Jammu and Kashmir, India
| | - Abdalla N. Fadul
- Department of Clinical Laboratory Sciences, College of Applied Medical Science, King Khalid University, Abha, Saudi Arabia
| | - Gulam N. Yatoo
- Department of Chemistry, National Institute of Technology, Srinagar, Jammu and Kashmir, India
| | - Kailash Jangid
- Department of Chemistry, Central University of Punjab, Bathinda, Punjab, India
| | - Mushtaq A. Mir
- Department of Clinical Laboratory Sciences, College of Applied Medical Science, King Khalid University, Abha, Saudi Arabia
| | - Wajahat A. Shah
- Laboratory of Natural Product and Designing Organic Synthesis, Department of Chemistry, University of Kashmir, Srinagar, Jammu and Kashmir, India
| | - Praveen K. Sharma
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara, India
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4
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Al-Hakim Badawi MA, Al-Zaben MI, Thomas R. DFT Studies on Mechanism of Organocatalytic Metal-Free Click 32CA Reaction for Synthesis of NH-1,2,3-triazoles. Catal Letters 2023. [DOI: 10.1007/s10562-023-04374-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 05/22/2023] [Indexed: 09/02/2023]
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5
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Kawamura MY, Alegre-Requena JV, Barbosa TM, Tormena CF, Paton RS, Ferreira MAB. Mechanistic Aspects on [3+2] Cycloaddition (32CA) Reactions of Azides to Nitroolefins: A Computational and Kinetic Study. Chemistry 2022; 28:e202202294. [PMID: 36074001 DOI: 10.1002/chem.202202294] [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: 07/21/2022] [Indexed: 12/14/2022]
Abstract
[3+2] cycloadditions of nitroolefins have emerged as a selective and catalyst-free alternative for the synthesis of 1,2,3-triazoles from azides. We describe mechanistic studies into the cycloaddition/rearomatization reaction sequence. DFT calculations revealed a rate-limiting cycloaddition step proceeding via an asynchronous TS with high kinetic selectivity for the 1,5-triazole. Kinetic studies reveal a second-order rate law, and 13 C kinetic isotopic effects at natural abundance were measured with a significant normal effect at the conjugated olefinic centers of 1.0158 and 1.0216 at the α and β-carbons of β-nitrostyrene. Distortion/interaction-activation strain and energy decomposition analyses revealed that the major regioisomeric pathway benefits from an earlier and less-distorted TS, while intermolecular interaction terms dominate the preference for 1,5- over 1,4-cycloadducts. In addition, the major regioisomer also has more favorable electrostatic and dispersion terms. Additionally, while static DFT calculations suggest a concerted but highly asynchronous Ei-type HNO2 elimination mechanism, quasiclassical direct-dynamics calculations reveal the existence of a dynamic intermediate.
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Affiliation(s)
- Meire Y Kawamura
- Department of Chemistry, Federal University of São Carlos - UFSCar, Rodovia Washington Luís, km 235, SP-310, São Carlos, 13565-905, São Paulo, Brazil
| | - Juan V Alegre-Requena
- Department of Chemistry, Colorado State University, 1301 Center Ave, Ft. Collins, CO 80523-1872, USA.,Dpto. de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) CSI, Universidad de Zaragoza., C/ Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Thaís M Barbosa
- Chemistry Institute, University of Campinas - UNICAMP, P.O. Box. 6154, 13083-970, Campinas, SP, Brazil.,Nanalysis Corp, Bay 4, 4500 5 Street NE, Calgary, Alberta, Canada
| | - Cláudio F Tormena
- Chemistry Institute, University of Campinas - UNICAMP, P.O. Box. 6154, 13083-970, Campinas, SP, Brazil
| | - Robert S Paton
- Department of Chemistry, Colorado State University, 1301 Center Ave, Ft. Collins, CO 80523-1872, USA
| | - Marco A B Ferreira
- Department of Chemistry, Federal University of São Carlos - UFSCar, Rodovia Washington Luís, km 235, SP-310, São Carlos, 13565-905, São Paulo, Brazil
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6
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1,3‐Dipolar Cycloaddition of Alkanone Enolates with Azides in Deep Eutectic Solvents for the Metal‐free Regioselective Synthesis of Densely Functionalized 1,2,3‐Triazoles. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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7
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Chiavegatti Neto A, Soares KC, Santos MDS, Aímola TJ, Ferreira AG, Jardim GAM, Tormena CF, Paixão MW, Ferreira MAB. Mechanistic investigation of enolate/stabilized vinylogous carbanion-mediated organocatalytic azide (3 + 2) cycloaddition reactions for the synthesis of 1,2,3-triazoles. Org Biomol Chem 2022; 20:6019-6026. [PMID: 35411906 DOI: 10.1039/d2ob00391k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Herein, we report a fully detailed mechanistic study involving an organocatalyzed 1,3-dipolar cycloaddition via enolate or stabilized vinylogous carbanion intermediates and azide for the synthesis of 1,2,3-triazoles. A detailed investigation of the elementary steps, intermediates, and transition states of the two organocatalyzed metal-free click reactions is supported by DFT calculations and 1H NMR monitoring experiments, providing detailed profiles for both reaction mechanisms. Distortion-interaction activation-strain (DIAS) analysis was also employed to further elucidate the regioselectivity in both reactions.
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Affiliation(s)
- Attilio Chiavegatti Neto
- Department of Chemistry, Federal University of São Carlos - UFSCar, Rodovia Washington Luís, km 235, SP-310, São Carlos, São Paulo, Brazil, 13565-905.
| | - Kelly Cintra Soares
- Department of Chemistry, Federal University of São Carlos - UFSCar, Rodovia Washington Luís, km 235, SP-310, São Carlos, São Paulo, Brazil, 13565-905.
| | - Maiara da Silva Santos
- Department of Chemistry, Federal University of São Carlos - UFSCar, Rodovia Washington Luís, km 235, SP-310, São Carlos, São Paulo, Brazil, 13565-905.
| | - Túlio Jardini Aímola
- Department of Chemistry, Federal University of São Carlos - UFSCar, Rodovia Washington Luís, km 235, SP-310, São Carlos, São Paulo, Brazil, 13565-905.
| | - Antonio Gilberto Ferreira
- Department of Chemistry, Federal University of São Carlos - UFSCar, Rodovia Washington Luís, km 235, SP-310, São Carlos, São Paulo, Brazil, 13565-905.
| | - Guilherme A M Jardim
- Department of Chemistry, Federal University of São Carlos - UFSCar, Rodovia Washington Luís, km 235, SP-310, São Carlos, São Paulo, Brazil, 13565-905.
| | - Cláudio Francisco Tormena
- Institute of Chemistry, University of Campinas (UNICAMP), PO BOX 6154, Campinas, São Paulo CEP 13083-970, Brazil
| | - Márcio Weber Paixão
- Department of Chemistry, Federal University of São Carlos - UFSCar, Rodovia Washington Luís, km 235, SP-310, São Carlos, São Paulo, Brazil, 13565-905.
| | - Marco Antonio Barbosa Ferreira
- Department of Chemistry, Federal University of São Carlos - UFSCar, Rodovia Washington Luís, km 235, SP-310, São Carlos, São Paulo, Brazil, 13565-905.
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8
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Gomes CB, Corrêa CL, Cabrera DC, D'Oca MGM, Ruiz M, Collares T, Savegnago L, Seixas FK, Alves D. Organocatalytic synthesis and antitumor activity of novel 1,2,3-triazoles derived from fatty β-ketoesters. Med Chem 2022; 18:463-472. [DOI: 10.2174/1573406417666210921143646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 03/18/2021] [Accepted: 05/12/2021] [Indexed: 11/22/2022]
Abstract
Background:
Developing methods to synthesize highly functionalized and complex 1,2,3-triazoles from various combinations of substrates remains a significant challenge in organic synthesis. Thus, to the best of our knowledge, an organocatalytic approach to synthesize 1,2,3-triazoles derived from fatty acids has not been explored.
Objective:
In this sense, we describe here the organocatalyzed synthesis and preliminary results of antitumor and cytotoxic activity of a range of 1,2,3-triazoles derived from fatty esters.
Methods:
To synthesize 1,2,3-triazoles 3 derived from fatty β-ketoesters, we performed the reaction of appropriate aryl azides 2a-j with β-ketoesters 1a-c in the presence of 5 mol% of DBU using DMSO as a solvent at 70 °C for 24 h. The viability of 5637 cells was determined by measuring the reduction of soluble MTT to water-insoluble formazan. The IC50 concentration that inhibits 50% of cell growth and the results were obtained by at least three independent experiments in triplicate for each test.
Results:
Through enolate-mediated organocatalysis, 1,2,3-triazoles 3 derived from fatty β-ketoesters were synthesized in moderate to excellent yields by reacting fatty esters 1 with aryl azides 2 in the presence of a catalytic amount of 1,8-diazabicyclo[5.4.0]undec-7-ene (5 mol%). All compounds derived from palmitic acetoacetate 1a were evaluated regarding induced cytotoxicity in vitro in a human bladder cancer cell line, and compounds 3a, 3d, 3e, and 3g were shown to be promising alternatives for bladder cancer treatment and presented the lowest inhibitory concentration of IC50.
Conclusion:
We described a synthetic procedure to prepare 1,2,3-triazoles derived from fatty β-ketoesters by DBU-catalyzed 1,3-dipolar cycloaddition reactions of fatty esters with different aryl azides. Compounds derived from palmitic acetoacetate were screened for antitumor and cytotoxic activity in vitro in human bladder cancer cell lines, and compounds 3a, 3d, 3e, and 3g showed potential to treat bladder cancer.
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Affiliation(s)
- Carolina B. Gomes
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel - P.O. Box 354
- 96010-900, Pelotas, RS, Brazil
| | - Caroline L. Corrêa
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel - P.O. Box 354
- 96010-900, Pelotas, RS, Brazil
| | - Diego C. Cabrera
- Laboratory Organic Synthesis Kolbe- Federal University of Rio Grande - FURG. Rio Grande, RS, Brazil
| | - Marcelo G. M. D'Oca
- Laboratory Organic Synthesis Kolbe- Federal University of Rio Grande - FURG. Rio Grande, RS, Brazil
| | - Martha Ruiz
- Grupo de Pesquisa em Oncologia Celular e Molecular - GPO, CDTec, Universidade Federal de
Pelotas, UFPel, Pelotas, RS, Brazil
| | - Tiago Collares
- Grupo de Pesquisa em Oncologia Celular e Molecular - GPO, CDTec, Universidade Federal de
Pelotas, UFPel, Pelotas, RS, Brazil
| | - Lucielli Savegnago
- Grupo de Pesquisa em Neurobiotecnologia - GPN, CDTec, Universidade Federal
de Pelotas, UFPel, Pelotas, RS, Brazil
| | - Fabiana K. Seixas
- Grupo de Pesquisa em Oncologia Celular e Molecular - GPO, CDTec, Universidade Federal de
Pelotas, UFPel, Pelotas, RS, Brazil
| | - Diego Alves
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel - P.O. Box 354
- 96010-900, Pelotas, RS, Brazil
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9
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Wahan SK, Sharma S, Chawla PA. Synthesis of quinazolinone and quinazoline derivatives using green chemistry approach. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Green chemistry has been most compelling area of research. Green chemistry is vital to long-term sustainability, not only because of its fundamental notion of reducing the use and manufacture of hazardous materials, but also because of its broad applicability as one of the most efficient and problem-solving pathways for the synthesis of new materials. Various chemists have studied a plethora of strategies to lessen the release of hazardous chemical waste, waste material recyclization and reuse. New techniques have been created based on a green chemistry strategy that includes the utilization of catalysts, nanosized materials and composites, such as metal and non-metal nanoparticles, their oxides and salts, and different heterocyclic rings. Quinazolines and quinazolinones are biologically significant heterocyclic rings with a wide range of characteristics. In a summary, this chapter focuses on recent novel synthesis methods for quinazoline and quinazolinone derivatives, which are vital to humanity.
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Affiliation(s)
- Simranpreet K. Wahan
- Department of Pharmaceutical Chemistry , ISF College of Pharmacy , Moga , Punjab 142001 , India
| | - Sangeeta Sharma
- Department of Applied Science & Humanities , Shaheed Bhagat Singh State University , Ferozepur , Punjab 152004 , India
| | - Pooja A. Chawla
- Department of Pharmaceutical Chemistry , ISF College of Pharmacy , Moga , Punjab 142001 , India
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10
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Abd Al-Hakim Badawi M. Mechanism of Diethylamine/DBU-Catalyzed Cycloaddition of Azides to Unsaturated Aldehydes: A Quantum Mechanical Investigation. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113593] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Ali A, Kuznetsov A, Ashfaq M, Tahir MN, Khalid M, Imran M, Irfan A. Synthesis, single-crystal exploration, and theoretical insights of arylsulfonylated 2-amino-6-methylpyrimidin derivatives. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130789] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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12
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Varala R, Bollikolla HB, Kurmarayuni CM. Synthesis of Pharmacological Relevant 1,2,3-Triazole and its Analogues-A Review. Curr Org Synth 2021; 18:101-124. [DOI: 10.2174/1570179417666200914142229] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/28/2020] [Accepted: 08/06/2020] [Indexed: 11/22/2022]
Abstract
In this review, authors focus mostly on the various synthetic strategies developed so far for 1,2,3-
triazole scaffold and its derivatives via different approaches such as metal-free, metal assisted or bimetallic. A
brief overview of applications of the very important 1,2,3-triazole scaffold along with pharmacological activity is
also discussed. Synthetic strategies are updated until June 2020.
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Affiliation(s)
- Ravi Varala
- Scrips Pharma, Mallapur, Hyderabad, Telangana-500 076, India
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13
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Reddy GS, Reddy LM, Kumar AS, Ramachary DB. Organocatalytic Selective [3 + 2] Cycloadditions: Synthesis of Functionalized 5-Arylthiomethyl-1,2,3-triazoles and 4-Arylthio-1,2,3-triazoles. J Org Chem 2020; 85:15488-15501. [DOI: 10.1021/acs.joc.0c02247] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- G. Surendra Reddy
- Catalysis Laboratory, School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
| | - L. Mallikarjuna Reddy
- Catalysis Laboratory, School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
| | - A. Suresh Kumar
- Catalysis Laboratory, School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
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14
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Gomes CB, Balaguez RA, Larroza A, Smaniotto TA, Domingues M, Casaril AM, Silva MS, Rodrigues OED, Savegnago L, Alves D. Organocatalysis in the Synthesis of 1,2,3‐Triazoyl‐zidovudine Derivatives: Synthesis and Preliminary Antioxidant Activity. ChemistrySelect 2020. [DOI: 10.1002/slct.202003355] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Carolina B. Gomes
- LASOL-CCQFA Universidade Federal de Pelotas - UFPel P.O. Box 354 96010-900 Pelotas RS Brazil
| | - Renata A. Balaguez
- LASOL-CCQFA Universidade Federal de Pelotas - UFPel P.O. Box 354 96010-900 Pelotas RS Brazil
| | - Allya Larroza
- LASOL-CCQFA Universidade Federal de Pelotas - UFPel P.O. Box 354 96010-900 Pelotas RS Brazil
| | - Thiago A. Smaniotto
- Programa de Pós-Graduação em Biotecnologia (PPGB) Universidade Federal de Pelotas - UFPel Pelotas RS Brazil
| | - Micaela Domingues
- Programa de Pós-Graduação em Biotecnologia (PPGB) Universidade Federal de Pelotas - UFPel Pelotas RS Brazil
| | - Angela M. Casaril
- Programa de Pós-Graduação em Biotecnologia (PPGB) Universidade Federal de Pelotas - UFPel Pelotas RS Brazil
| | - Márcio S. Silva
- LASOL-CCQFA Universidade Federal de Pelotas - UFPel P.O. Box 354 96010-900 Pelotas RS Brazil
| | - Oscar E. D. Rodrigues
- LabSelen-NanoBio - Departamento de Química Universidade Federal de Santa Maria UFSM 97115-900 Santa Maria RS Brazil
| | - Lucielli Savegnago
- Programa de Pós-Graduação em Biotecnologia (PPGB) Universidade Federal de Pelotas - UFPel Pelotas RS Brazil
| | - Diego Alves
- LASOL-CCQFA Universidade Federal de Pelotas - UFPel P.O. Box 354 96010-900 Pelotas RS Brazil
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15
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Costa GP, Bach MF, Moraes MC, Barcellos T, Lenardão EJ, Silva MS, Alves D. Sequential Organocatalytic Synthesis of [1,2,3]Triazolo[1,5‐
a
]quinolines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000887] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Gabriel P. Costa
- LASOL – CCQFA – Universidade Federal de Pelotas – UFPel – P.O. Box 354 – 96010-900 Pelotas, RS Brazil
| | - Mariana F. Bach
- LASOL – CCQFA – Universidade Federal de Pelotas – UFPel – P.O. Box 354 – 96010-900 Pelotas, RS Brazil
| | - Maiara C. Moraes
- Laboratory of Biotechnology of Natural and Synthetic Products Universidade de Caxias do Sul Caxias do Sul, RS Brazil
| | - Thiago Barcellos
- Laboratory of Biotechnology of Natural and Synthetic Products Universidade de Caxias do Sul Caxias do Sul, RS Brazil
| | - Eder J. Lenardão
- LASOL – CCQFA – Universidade Federal de Pelotas – UFPel – P.O. Box 354 – 96010-900 Pelotas, RS Brazil
| | - Márcio S. Silva
- LASOL – CCQFA – Universidade Federal de Pelotas – UFPel – P.O. Box 354 – 96010-900 Pelotas, RS Brazil
| | - Diego Alves
- LASOL – CCQFA – Universidade Federal de Pelotas – UFPel – P.O. Box 354 – 96010-900 Pelotas, RS Brazil
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16
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Dantas JA, Echemendía R, Santos MS, Paixão MW, Ferreira MAB, Corrêa AG. Green Approach for Visible-Light-Induced Direct Functionalization of 2-Methylquinolines. J Org Chem 2020; 85:11663-11678. [PMID: 32852210 DOI: 10.1021/acs.joc.0c01203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A transition metal- and oxidant-free visible light-photoinduced protocol for direct functionalization of 2-methylquinolines has been developed. This protocol enabled the C-H functionalization of substituted 2-methylquinolines with diacetyl or ethyl pyruvate, under environmentally friendly conditions. A mechanistic investigation based on density functional theory (DFT) calculations provided details about the origins of reactivity and selectivity.
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Affiliation(s)
- Juliana A Dantas
- Centre of Excellence for Research in Sustainable Chemistry, Chemistry Department, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Radell Echemendía
- Centre of Excellence for Research in Sustainable Chemistry, Chemistry Department, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Marilia S Santos
- Centre of Excellence for Research in Sustainable Chemistry, Chemistry Department, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Márcio W Paixão
- Centre of Excellence for Research in Sustainable Chemistry, Chemistry Department, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Marco Antonio B Ferreira
- Centre of Excellence for Research in Sustainable Chemistry, Chemistry Department, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Arlene G Corrêa
- Centre of Excellence for Research in Sustainable Chemistry, Chemistry Department, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
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17
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Çapcı A, Lorion MM, Mai C, Hahn F, Hodek J, Wangen C, Weber J, Marschall M, Ackermann L, Tsogoeva SB. (Iso)Quinoline-Artemisinin Hybrids Prepared through Click Chemistry: Highly Potent Agents against Viruses. Chemistry 2020; 26:12019-12026. [PMID: 32485071 PMCID: PMC7540715 DOI: 10.1002/chem.202001803] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Indexed: 12/19/2022]
Abstract
Viral infections cause life-threatening diseases in millions of people worldwide every year and there is an urgent need for new, effective antiviral drugs. Hybridization of two chemically diverse compounds into a new bioactive effector product is a successful concept to improve the properties of a hybrid drug relative to the parent compounds. In this study, (iso)quinoline-artemisinin hybrids, obtained through copper-catalyzed azide-alkyne cycloaddition or metal-free click reactions (in organic solvents or in the presence of water), were analyzed in vitro, for the first time, for their inhibitory activity against human cytomegalovirus (HCMV), relative to their parent compounds and the reference drug ganciclovir. EC50 (HCMV) values were obtained in a range 0.22-1.20 μm, which indicated highly potent antiviral properties in the absence of cytotoxic effects on normal cells (CC50 >100 μm). The most active hybrid, 1 (EC50 =0.22 μm), is 25 times more potent than its parent compound artesunic acid (EC50 =5.41 μm) and 12 times more efficient than the standard drug ganciclovir (EC50 =2.6 μm). Interestingly, hybrid 1 also shows inhibitory activity against hepatitis B virus in vitro (EC50 (HBeAg)=2.57 μm).
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Affiliation(s)
- Aysun Çapcı
- Organic Chemistry Chair I and Interdisciplinary Center for, Molecular Materials (ICMM)Friedrich-Alexander University of, Erlangen–NürnbergNikolaus Fiebiger-Straße 1091058ErlangenGermany
| | - Mélanie M. Lorion
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Christina Mai
- Organic Chemistry Chair I and Interdisciplinary Center for, Molecular Materials (ICMM)Friedrich-Alexander University of, Erlangen–NürnbergNikolaus Fiebiger-Straße 1091058ErlangenGermany
| | - Friedrich Hahn
- Institute for Clinical and Molecular VirologyFriedrich-Alexander University of Erlangen-NürnbergSchlossgarten 491054ErlangenGermany
| | - Jan Hodek
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of SciencesFlemingovo namesti 216610PragueCzech Republic
| | - Christina Wangen
- Institute for Clinical and Molecular VirologyFriedrich-Alexander University of Erlangen-NürnbergSchlossgarten 491054ErlangenGermany
| | - Jan Weber
- Institute of Organic Chemistry and Biochemistry of the, Czech Academy of SciencesFlemingovo namesti 216610PragueCzech Republic
| | - Manfred Marschall
- Institute for Clinical and Molecular VirologyFriedrich-Alexander University of Erlangen-NürnbergSchlossgarten 491054ErlangenGermany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
- German Center for Cardiovascular Research (DZHK)Potsdamer Str. 5810785BerlinGermany
| | - Svetlana B. Tsogoeva
- Organic Chemistry Chair I and Interdisciplinary Center for, Molecular Materials (ICMM)Friedrich-Alexander University of, Erlangen–NürnbergNikolaus Fiebiger-Straße 1091058ErlangenGermany
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18
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Shu M, Ran L, Liu K, Yang W, Wang Q. An efficient and regiospecific synthesis of 1,5-diaryl-4-benzothiazolyl-1,2,3-triazoles by organocatalytic 1,3-dipolar cycloaddition reactions. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1758144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Miaomiao Shu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
| | - Liqiong Ran
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
| | - Kexiong Liu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
| | - Wen Yang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
| | - Qiuan Wang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
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19
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Surendra Reddy G, Suresh Kumar A, Ramachary DB. Organocatalytic enone-azide [3 + 2]-cycloaddition: synthesis of functionally rich C/N-double vinyl 1,2,3-triazoles. Org Biomol Chem 2020; 18:4470-4478. [PMID: 32490474 DOI: 10.1039/d0ob00848f] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
An enolate-mediated organocatalytic [3 + 2]-cycloaddition of enones with less reactive vinyl/alkyl/aryl azides is reported at room temperature for short reaction times. The metal-free amine-mediated catalytic conditions of this [3 + 2]-cycloaddition allowed us to synthesize a collection of C/N-double vinyl-1,2,3-triazoles and C-vinyl-1,2,3-triazoles through functionalized enones as quality azidophiles with various azides. It is an efficient catalytic [3 + 2]-cycloaddition for the synthesis of biologically important fully decorated C/N-double vinyl-1,2,3-triazoles with excellent outcomes with reference to the reaction rate, selectivity, operation simplicity, substrate scope, yields, and synthetic applications as demonstrated in the paper. Herein, we illustrated the importance of enolate reactivity with azides compared to enamines by correlation with previous enamine-mediated click reactions in the reaction mechanism section.
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Affiliation(s)
- G Surendra Reddy
- Catalysis Laboratory, School of Chemistry, University of Hyderabad, Hyderabad-500 046, India.
| | - A Suresh Kumar
- Catalysis Laboratory, School of Chemistry, University of Hyderabad, Hyderabad-500 046, India.
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20
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da Silva AF, Leonarczyk IA, Ferreira MAB, Jurberg ID. Diastereodivergent aminocatalyzed spirocyclization strategies using 4-alkylideneisoxazol-5-ones and methyl vinyl ketones. Org Chem Front 2020. [DOI: 10.1039/d0qo00779j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Diasterodivergent aminocatalyzed approaches starting from 4-alkylideneisoxazol-5-ones and methyl vinyl ketones have been developed for the synthesis of racemic 6,10-cis-spiroisoxazol-5-ones and highly enantioenriched 6,10-trans-spiroisoxazol-5-ones.
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Affiliation(s)
| | - Ives A. Leonarczyk
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem)
- Department of Chemistry
- Federal University of São Carlos
- São Carlos
- Brazil
| | - Marco A. B. Ferreira
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem)
- Department of Chemistry
- Federal University of São Carlos
- São Carlos
- Brazil
| | - Igor D. Jurberg
- Institute of Chemistry
- State University of Campinas
- Campinas
- Brazil
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21
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Wan Q, Li S, Kang Q, Yuan Y, Du Y. Chiral-at-Metal Rh(III) Complex Catalyzed Cascade Reduction-Michael Addition Reaction. J Org Chem 2019; 84:15201-15211. [PMID: 31661265 DOI: 10.1021/acs.joc.9b02243] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An enantioselective three-component cascade reduction-Michael addition reaction catalyzed by chiral-at-metal Rh(III) complexes has been developed. With a Hantzsch ester as the hydride source, a number of malononitrile derivatives were prepared in good yields and excellent enantioselectivities. A model that accounts for the origin and influence factors of the stereoselectivity has been proposed based on experiments.
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Affiliation(s)
- Qian Wan
- College of Chemistry , Fuzhou University , Fuzhou 350108 , P. R. China
| | - Shiwu Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , 155 Yangqiao Road West , Fuzhou 350002 , P. R. China
| | - Qiang Kang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , 155 Yangqiao Road West , Fuzhou 350002 , P. R. China
| | - Yaofeng Yuan
- College of Chemistry , Fuzhou University , Fuzhou 350108 , P. R. China
| | - Yu Du
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , 155 Yangqiao Road West , Fuzhou 350002 , P. R. China
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22
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An Efficient Approach to Phosphorylated Isoindoline Fused with Triazoles via Zn-Catalyzed Cascade Cyclization of 2-Propynol Benzyl Azides and Diarylphosphine Oxides. Molecules 2019; 24:molecules24193526. [PMID: 31569519 PMCID: PMC6803861 DOI: 10.3390/molecules24193526] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 09/22/2019] [Accepted: 09/27/2019] [Indexed: 12/19/2022] Open
Abstract
An efficient approach for the synthesis of phosphorylated isoindoline fused with triazoles via Zn(OTf)2-catalyzed cascade cyclization of easily prepared ortho-propynol benzyl azides and diarylphosphine oxides is developed. The transformation occurred smoothly in moderate to excellent yields and tolerated various propargylic alcohol substrates.
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23
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Surendra Reddy G, Ramachary DB. Reaction engineering and photophysical studies of fully enriched C-vinyl-1,2,3-triazoles. Org Chem Front 2019. [DOI: 10.1039/c9qo00864k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A library of fluorogenic C-vinyl-1,2,3-triazoles were synthesized in very good yields with excellent selectivity by using an organocatalytic formal [3 + 2]-cycloaddition. One of the coumarin-triazoles 4ba has shown excellent fluorescence properties (λem = 533 nm).
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Affiliation(s)
- G. Surendra Reddy
- Catalysis Laboratory
- School of Chemistry
- University of Hyderabad
- Hyderabad-500 046
- India
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24
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Design and synthesis of structurally identical coumarinotriazoles as cytotoxic and antimicrobial agents. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.cdc.2018.09.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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25
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Cao S, Liu Y, Hu C, Wen C, Wan J. Alkyl Propiolates Participated [3+2] Annulation for the Switchable Synthesis of 1,5‐ and 1,4‐Disubstituted 1,2,3‐Triazoles Containing Ester Side Chain. ChemCatChem 2018. [DOI: 10.1002/cctc.201801366] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shuo Cao
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
| | - Yunyun Liu
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
| | - Changfeng Hu
- College of Basic Medical SciencesZhejiang Chinese Medical University Hangzhou 310053 P. R. China
| | - Chengping Wen
- College of Basic Medical SciencesZhejiang Chinese Medical University Hangzhou 310053 P. R. China
| | - Jie‐Ping Wan
- College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 P. R. China
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26
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An efficient catalyst-free approach for the synthesis of novel isoxazolo[5,4-b]pyridine derivatives via one-pot three-component reaction. MONATSHEFTE FUR CHEMIE 2018. [DOI: 10.1007/s00706-018-2205-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Debia NP, Saraiva MT, Martins BS, Beal R, Gonçalves PFB, Rodembusch FS, Alves D, Lüdtke DS. Synthesis of Amino Acid-Derived 1,2,3-Triazoles: Development of a Nontrivial Fluorescent Sensor in Solution for the Enantioselective Sensing of a Carbohydrate and Bovine Serum Albumin Interaction. J Org Chem 2018; 83:1348-1357. [PMID: 29313350 DOI: 10.1021/acs.joc.7b02852] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A series of amino acid-derived 1,2,3-triazoles presenting the amino acid and the aromatic moieties connected by a triazole-4-carboxylate spacer is discussed in this work. These compounds were achieved in good yields by organocatalytic enamine-azide [3 + 2] cycloadditions. One of the molecules obtained, bearing a 7-chloroquinoline moiety, was photoactive in the UV-violet region and was successfully employed as a probe for substrate-specific enantiomeric sensing using d-(-)-arabinose and l-(+)-arabinose. The potential application as a fluorescent probe to detect protein in phosphate buffer solution was also explored using as model bovine serum albumin (BSA). The studied compounds presented both suppression and association behavior in the presence of BSA. In addition, theoretical calculations were performed at levels ωB97XD/cc-pVDZ and PBE1PBE/6-311+G(d,p) together with the polarizable continuum model to understand the interaction of the molecules with the enantiomers.
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Affiliation(s)
- Natalí P Debia
- Instituto de Química, Universidade Federal do Rio Grande do Sul, UFRGS , Av. Bento Gonçalves 9500, Porto Alegre, RS 91501-970, Brazil
| | - Maiara T Saraiva
- LASOL-CCQFA, Universidade Federal de Pelotas-UFPEL , Pelotas, RS 96010-610, Brazil
| | - Bruna S Martins
- Instituto de Química, Universidade Federal do Rio Grande do Sul, UFRGS , Av. Bento Gonçalves 9500, Porto Alegre, RS 91501-970, Brazil
| | - Roiney Beal
- Grupo de Química Teórica e Computacional, Universidade Federal do Rio Grande do Sul-UFRGS , Porto Alegre, RS 90040-060, Brazil
| | - Paulo F B Gonçalves
- Grupo de Química Teórica e Computacional, Universidade Federal do Rio Grande do Sul-UFRGS , Porto Alegre, RS 90040-060, Brazil
| | - Fabiano S Rodembusch
- Grupo de Pesquisa em Fotoquímica Orgânica Aplicada, Universidade Federal do Rio Grande do Sul - UFRGS , Porto Alegre, RS 90040-060, Brazil
| | - Diego Alves
- LASOL-CCQFA, Universidade Federal de Pelotas-UFPEL , Pelotas, RS 96010-610, Brazil
| | - Diogo S Lüdtke
- Instituto de Química, Universidade Federal do Rio Grande do Sul, UFRGS , Av. Bento Gonçalves 9500, Porto Alegre, RS 91501-970, Brazil
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28
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Alves D, Goldani B, Lenardão EJ, Perin G, Schumacher RF, Paixão MW. Copper Catalysis and Organocatalysis Showing the Way: Synthesis of Selenium-Containing Highly Functionalized 1,2,3-Triazoles. CHEM REC 2017; 18:527-542. [PMID: 29235236 DOI: 10.1002/tcr.201700058] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 12/01/2017] [Indexed: 12/16/2022]
Abstract
This article provides a comprehensive overview of reported methods - particularly copper- and organocatalyzed reactions - for the regioselective syntheses of selenium-containing 1,2,3-triazoles systems. These chemical entities are prevalent cores in biologically active compounds and functional materials. In view of their unique properties, substantial efforts have been paid for the design and development of practical approaches for the synthesis of these scaffolds.
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Affiliation(s)
- Diego Alves
- LASOL-CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354 - 96010-900, Pelotas, RS, Brazil
| | - Bruna Goldani
- LASOL-CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354 - 96010-900, Pelotas, RS, Brazil
| | - Eder J Lenardão
- LASOL-CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354 - 96010-900, Pelotas, RS, Brazil
| | - Gelson Perin
- LASOL-CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354 - 96010-900, Pelotas, RS, Brazil
| | - Ricardo F Schumacher
- LASOL-CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354 - 96010-900, Pelotas, RS, Brazil
| | - Márcio W Paixão
- Department of Chemistry, Federal University of São Carlos - UFSCar, Via Washington Luís, km 235 - SP-310, São Carlos, São Paulo, Brazil-, 13565-905
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29
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Zukerman-Schpector J, Dallasta Pedroso S, Sousa Madureira L, Weber Paixão M, Ali A, Tiekink ERT. 4-Benzyl-1-(4-nitro-phen-yl)-1 H-1,2,3-triazole: crystal structure and Hirshfeld analysis. Acta Crystallogr E Crystallogr Commun 2017; 73:1716-1720. [PMID: 29152358 PMCID: PMC5683498 DOI: 10.1107/s2056989017014748] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 10/11/2017] [Indexed: 11/10/2022]
Abstract
The mol-ecule in the title compound, C15H12N4O2, has a twisted L-shape with the dihedral angle between the aromatic rings of the N-bound benzene and C-bound benzyl groups being 70.60 (9)°. The nitro group is co-planar with the benzene ring to which it is connected [C-C-N-O torsion angle = 0.4 (3)°]. The three-dimensional packing is stabilized by a combination of methyl-ene-C-H⋯O(nitro), methyl-ene-C-H⋯π(phen-yl), phenyl-C-H⋯π(triazol-yl) and nitro-O⋯π(nitro-benzene) inter-actions, along with weak π(triazol-yl)-π(nitrobenzene) contacts [inter-centroid distance = 3.8386 (10) Å]. The importance of the specified inter-molecular contacts has been verified by an analysis of the calculated Hirshfeld surface.
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Affiliation(s)
- Julio Zukerman-Schpector
- Laboratório de Cristalografia, Esterodinâmica e, Modelagem Molecular, Departamento de Química, Universidade Federal de São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Sofia Dallasta Pedroso
- Laboratório de Cristalografia, Esterodinâmica e, Modelagem Molecular, Departamento de Química, Universidade Federal de São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Lucas Sousa Madureira
- Laboratório de Cristalografia, Esterodinâmica e, Modelagem Molecular, Departamento de Química, Universidade Federal de São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Márcio Weber Paixão
- Departamento de Química, Universidade Federal de São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Akbar Ali
- Departamento de Química, Universidade Federal de São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Edward R. T. Tiekink
- Research Centre for Crystalline Materials, School of Science and Technology, Sunway University, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia
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30
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Chen Z, Cao G, Song J, Ren H. Recent Developments in Azide-Free Synthesis of 1,2,3-Triazoles. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201700459] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zhengkai Chen
- Department of Chemistry; Zhejiang Sci-Tech University; Hangzhou Zhejiang 310018 China
| | - Gangjian Cao
- Department of Chemistry; Zhejiang Sci-Tech University; Hangzhou Zhejiang 310018 China
| | - Jinyu Song
- Department of Chemistry; Zhejiang Sci-Tech University; Hangzhou Zhejiang 310018 China
| | - Hongjun Ren
- Department of Chemistry; Zhejiang Sci-Tech University; Hangzhou Zhejiang 310018 China
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31
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Shen QK, Liu CF, Zhang HJ, Tian YS, Quan ZS. Design and synthesis of new triazoles linked to xanthotoxin for potent and highly selective anti-gastric cancer agents. Bioorg Med Chem Lett 2017; 27:4871-4875. [PMID: 28947149 DOI: 10.1016/j.bmcl.2017.09.040] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 09/08/2017] [Accepted: 09/16/2017] [Indexed: 01/11/2023]
Abstract
Two series of xanthotoxin-triazole derivatives were designed, synthesized, and studied for their antiproliferative properties. The in vitro cytotoxicity of the compounds in the AGS cancer cell line and the L02 normal cell line was evaluated via MTT assay. Among the synthesized compounds, 9-((1-(4-(trifluoromethyl)phenyl)-1H-1,2,3-triazol-4-yl)methoxy)-7H-furo[3,2-g]chromen-7-one (6p) was found to have the greatest antiproliferative activity against AGS cells (IC50=7.5μM) and showed better activity than the lead compound (xanthotoxin, IC50>100μM) and the reference drug (5-fluorouracil, IC50=29.6μM) did. The IC50 value of 6p in L02 cells was 13.3 times higher than that in the AGS cells. Therefore, the compound exhibited better therapeutic activity and specificity compared with the positive control 5-fluorouracil. Cell cycle analysis revealed that compound 6p inhibited cell growth via the induction of S/G2 phase arrest in AGS cells. Compound 6p was identified as a promising lead compound for the further development and identification of 1,2,3-triazole-based anticancer agents.
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Affiliation(s)
- Qing-Kun Shen
- Key Laboratory of Natural Resources and Functional Molecules of the Changbai Mountain, Affiliated Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Chuan-Feng Liu
- Key Laboratory of Natural Resources and Functional Molecules of the Changbai Mountain, Affiliated Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Hong-Jian Zhang
- Key Laboratory of Natural Resources and Functional Molecules of the Changbai Mountain, Affiliated Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Yu-Shun Tian
- Key Laboratory of Natural Resources and Functional Molecules of the Changbai Mountain, Affiliated Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China.
| | - Zhe-Shan Quan
- Key Laboratory of Natural Resources and Functional Molecules of the Changbai Mountain, Affiliated Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China.
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32
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Hui R, Zhao M, Chen M, Ren Z, Guan Z. One-Pot Synthesis of 4-Aryl-NH-1,2,3-Triazoles through Three-Component Reaction of Aldehydes, Nitroalkanes and NaN3. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201700367] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Rongrong Hui
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science; Northwest University, Xi'an; Shaanxi 710127 China
| | - Mina Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science; Northwest University, Xi'an; Shaanxi 710127 China
- Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering; Baoji University of Arts and Sciences; Baoji Shaanxi 721013 China
| | - Ming Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science; Northwest University, Xi'an; Shaanxi 710127 China
| | - Zhihui Ren
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science; Northwest University, Xi'an; Shaanxi 710127 China
| | - Zhenghui Guan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science; Northwest University, Xi'an; Shaanxi 710127 China
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33
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Liu L, Ai Y, Li D, Qi L, Zhou J, Tang Z, Shao Z, Liang Q, Sun HB. Recyclable Acid-Base Bifunctional Core-Shell-Shell Nanosphere Catalyzed Synthesis of 5-Aryl-1H
-1,2,3-triazoles through the “One-Pot” Cyclization of Aldehydes, Nitromethane, and Sodium Azide. ChemCatChem 2017. [DOI: 10.1002/cctc.201700401] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Lei Liu
- Department of Chemistry; Northeastern University; Shenyang 110819 P.R. China
| | - Yongjian Ai
- Department of Chemistry; Northeastern University; Shenyang 110819 P.R. China
- Department of Chemistry; Tsinghua University; Beijing 100084 P.R. China
| | - Dong Li
- Department of Chemistry; Northeastern University; Shenyang 110819 P.R. China
| | - Li Qi
- Department of Chemistry; Northeastern University; Shenyang 110819 P.R. China
| | - Junjie Zhou
- Department of Chemistry; Northeastern University; Shenyang 110819 P.R. China
| | - Zhike Tang
- Department of Chemistry; Northeastern University; Shenyang 110819 P.R. China
| | - Zixing Shao
- Department of Chemistry; Tsinghua University; Beijing 100084 P.R. China
| | - Qionglin Liang
- Department of Chemistry; Tsinghua University; Beijing 100084 P.R. China
| | - Hong-Bin Sun
- Department of Chemistry; Northeastern University; Shenyang 110819 P.R. China
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34
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Ahmed M, Razaq H, Faisal M, Siyal AN, Haider A. Metal-free and azide-free synthesis of 1,2,3-triazoles derivatives. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1303511] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Mukhtiar Ahmed
- Department of Chemistry, Quaid-I-Azam University, Islamabad, Pakistan
| | - Hamaela Razaq
- Department of Chemistry, Mirpur University of Science and Technology, Mirpur, Azad Jammu and Kashmir, Pakistan
| | - Muhammad Faisal
- Department of Chemistry, Quaid-I-Azam University, Islamabad, Pakistan
| | - Ali N. Siyal
- Dr. M.A. Kazi Institute of Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Azeem Haider
- Department of Chemistry, Quaid-I-Azam University, Islamabad, Pakistan
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35
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Hosseinzadeh M, Hossaini Z, Rostami-Charati F, Vaseghi S, Rostamian R. Synthesis of Furanone Derivatives Using 15-Nonacosanole Extracted from Fumaria officinalis
in the Presence of KF/Clinoptilolite Nanoparticles. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
| | | | | | - Samaneh Vaseghi
- Kosar Public School, Education of Mazandaran Province; Sari Iran
| | - Rezvaneh Rostamian
- Department of Chemistry, Qaemshahr Branch; Islamic Azad University; Qaemshahr Iran
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36
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Dheer D, Singh V, Shankar R. Medicinal attributes of 1,2,3-triazoles: Current developments. Bioorg Chem 2017; 71:30-54. [PMID: 28126288 DOI: 10.1016/j.bioorg.2017.01.010] [Citation(s) in RCA: 542] [Impact Index Per Article: 77.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 12/06/2016] [Accepted: 01/15/2017] [Indexed: 02/01/2023]
Abstract
1,2,3-Triazoles are important five-membered heterocyclic scaffold due to their extensive biological activities. This framework can be readily obtained in good to excellent yields on the multigram scale through click chemistry via reaction of aryl/alkyl halides, alkynes and NaN3 under ambient conditions. It has been an emerging area of interest for many researchers throughout the globe owing to its immense pharmacological scope. The present work aims to summarize the current approaches adopted for the synthesis of the 1,2,3-triazole and medicinal significance of these architectures as a lead structure for the discovery of drug molecules such as COX-1/COX-2 inhibitors (celecoxib, pyrazofurin), HIV protease inhibitors, CB1 cannabinoid receptor antagonist and much more which are in the pipeline of clinical trials. The emphasis has been given on the major advancements in the medicinal prospectus of this pharmacophore for the period during 2008-2016.
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Affiliation(s)
- Divya Dheer
- Academy of Scientific and Innovative Research (AcSIR), CSIR-IIIM, Jammu Campus, Jammu 180001, India; Bio-organic Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Virender Singh
- Department of Chemistry, National Institute of Technology (NIT), Jalandhar 144011, Punjab, India
| | - Ravi Shankar
- Academy of Scientific and Innovative Research (AcSIR), CSIR-IIIM, Jammu Campus, Jammu 180001, India; Bio-organic Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India.
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37
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Moradi AV. A Multicomponent Reaction as a Versatile Tool for the Synthesis of Spirooxindoles using N-Alkylisatins; Efficient Catalysis by ZnO Nanoparticles. JOURNAL OF CHEMICAL RESEARCH 2017. [DOI: 10.3184/174751917x14815427219086] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An efficient and green protocol for the synthesis of functionalised spirooxindole derivatives is described. This involves the reaction of in situ-generated keto-enaminones with N-alkylisatins in the presence of isothiocyanates.
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Affiliation(s)
- Ali Varasteh Moradi
- Department of Chemistry, Gorgan Branch, Islamic Azad University, Gorgan, Iran
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38
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Ramachary DB, Gujral J, Peraka S, Reddy GS. Triazabicyclodecene as an Organocatalyst for the Regiospecific Synthesis of 1,4,5-TrisubstitutedN-Vinyl-1,2,3-triazoles. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601497] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Jagjeet Gujral
- Catalysis Laboratory, School of Chemistry; University of Hyderabad; 500046 Hyderabad India
| | - Swamy Peraka
- Catalysis Laboratory, School of Chemistry; University of Hyderabad; 500046 Hyderabad India
| | - G. Surendra Reddy
- Catalysis Laboratory, School of Chemistry; University of Hyderabad; 500046 Hyderabad India
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39
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Ramachary DB, Reddy GS, Peraka S, Gujral J. Organocatalytic Vinyl Azide-Carbonyl [3+2] Cycloaddition: High-Yielding Synthesis of Fully DecoratedN-Vinyl-1,2,3-Triazoles. ChemCatChem 2016. [DOI: 10.1002/cctc.201601317] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | - G. Surendra Reddy
- Catalysis Laboratory; School of Chemistry; University of Hyderabad; Hyderabad 500 046 India
| | - Swamy Peraka
- Catalysis Laboratory; School of Chemistry; University of Hyderabad; Hyderabad 500 046 India
| | - Jagjeet Gujral
- Catalysis Laboratory; School of Chemistry; University of Hyderabad; Hyderabad 500 046 India
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40
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Teci M, Tilley M, McGuire MA, Organ MG. Handling Hazards Using Continuous Flow Chemistry: Synthesis of N1-Aryl-[1,2,3]-triazoles from Anilines via Telescoped Three-Step Diazotization, Azidodediazotization, and [3 + 2] Dipolar Cycloaddition Processes. Org Process Res Dev 2016. [DOI: 10.1021/acs.oprd.6b00292] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthieu Teci
- Department
of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J1P3, Canada
| | - Michael Tilley
- Department
of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J1P3, Canada
| | - Michael A. McGuire
- GlaxoSmithKline
Pharmaceuticals Inc., 709 Swedeland
Road, P.O. Box 1539, UMW 2810, King of Prussia, Pennsylvania 19406, United States
| | - Michael G. Organ
- Department
of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J1P3, Canada
- Centre
for Catalysis Research and Innovation (CCRI) and Department of Chemistry, University of Ottawa, Ottawa, Ontario K1N6N5, Canada
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41
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Bonacorso HG, Calheiro TP, Rodrigues MB, Stefanello ST, Soares FAA, Zanatta N, Martins MAP. Eco-friendly synthesis and antioxidant activity of new trifluoromethyl-substituted N-(pyrimidin-2-yl)benzo[d]thiazol-2-amines and some N-derivatives. MONATSHEFTE FUR CHEMIE 2016. [DOI: 10.1007/s00706-016-1829-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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42
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Tajabadi J, Bakavoli M, Gholizadeh M, Eshghi H. A mechanistic insight into the effect of piperidine as an organocatalyst on the [3 + 2] cycloaddition reaction of benzalacetone with phenyl azide from a computational study. Org Biomol Chem 2016; 14:7324-33. [PMID: 27403925 DOI: 10.1039/c6ob00815a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Several transition structures (TSs) for catalyst-free [3 + 2] cycloaddition and two plausible mechanistic pathways for the organocatalyzed [3 + 2] cycloaddition (32CA) between benzalacetone and phenyl azide were located by quantum chemistry methods. Calculations were carried out with B3LYP, MPWB1K and M06-2X functionals using 6-31G(d) and 6-311G(d,p) basis sets in gas and solvent phases. The calculated activation barriers imply that the lowest barrier pathway is the catalyzed process producing 3-regioisomers through the iminium intermediate and not through the dienamine route. Electronic displacements along the reaction path have been examined using a topological analysis of the electron-localization function (ELF). ELF topological analyses along the intrinsic reaction coordinates (IRC) of both catalyzed and uncatalyzed 32CA reactions indicated that while the first C1-N1 single bond is formed as a dative bond, the formation of the second C2-N3 bond takes place via a C-to-N coupling between the interacting centers of the reagents. Moreover, the ELF analyses imply that the reaction mechanism is a two-stage one-step process in the presence of a piperidine organocatalyst, while bond formation in an uncatalyzed process is almost synchronous.
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Affiliation(s)
- J Tajabadi
- Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad 91775-1436, Iran.
| | - M Bakavoli
- Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad 91775-1436, Iran.
| | - M Gholizadeh
- Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad 91775-1436, Iran.
| | - H Eshghi
- Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad 91775-1436, Iran.
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43
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John J, Thomas J, Dehaen W. Organocatalytic routes toward substituted 1,2,3-triazoles. Chem Commun (Camb) 2016; 51:10797-806. [PMID: 26067092 DOI: 10.1039/c5cc02319j] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The present feature article describes the different organocatalytic routes for the synthesis of substituted 1,2,3-triazoles. This methodology has recently gained much attention due to its many advantages like high regioselectivity, substrate scope, high yields, and access to novel molecules. The review is divided into 4 different sections based on the active intermediate of the triazole synthesis reactions. The mechanism of each approach is critically discussed and in addition, the advantages and disadvantages of each method are described with relevant examples.
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Affiliation(s)
- Jubi John
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
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44
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Lima CGS, Ali A, van Berkel SS, Westermann B, Paixão MW. Emerging approaches for the synthesis of triazoles: beyond metal-catalyzed and strain-promoted azide-alkyne cycloaddition. Chem Commun (Camb) 2016; 51:10784-96. [PMID: 26066359 DOI: 10.1039/c5cc04114g] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Metal-free 1,3-dipolar cycloaddition reactions have proven to be a powerful tool for the assembly of key heterocycles, in particular diversely functionalized 1,2,3-triazoles. A number of metal-free (3+2)-cycloaddition approaches have been developed up to date with the aim to circumvent the use of metal catalysts allowing these reactions to take place in biological systems without perturbation of the naturally occurring processes. This feature article specifically provides an overview of emerging metal-free synthetic routes, and their mechanistic features, in the formation of functionalized 1,2,3-triazoles.
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Affiliation(s)
- Carolina G S Lima
- Department of Chemistry, Universidade Federal de São Carlos (UFSCar), São Carlos, SP, Brazil.
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45
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Zhou X, Xu X, Liu K, Gao H, Wang W, Li W. Organocatalytic 1,3-Dipolar Cycloaddition Reaction of β-Keto Amides with Azides - Direct Access to 1,4,5-Trisubstituted 1,2,3-Triazole-4-carboxamides. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600157] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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46
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Huang J, Wu M, Hu L, Guo H, Sun S. Piperidine‐Catalyzed 1,3‐Dipolar Cycloaddition of Diazoesters to Enones. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jiayao Huang
- Hubei Collaborative Innovation Centre for Non-power Nuclear TechnologyHubei University of Science and Technology Hubei Province 437100 China
| | - Minghu Wu
- Hubei Collaborative Innovation Centre for Non-power Nuclear TechnologyHubei University of Science and Technology Hubei Province 437100 China
| | - Liqiang Hu
- Hubei Collaborative Innovation Centre for Non-power Nuclear TechnologyHubei University of Science and Technology Hubei Province 437100 China
| | - Haibin Guo
- Hubei Collaborative Innovation Centre for Non-power Nuclear TechnologyHubei University of Science and Technology Hubei Province 437100 China
| | - Shaofa Sun
- Hubei Collaborative Innovation Centre for Non-power Nuclear TechnologyHubei University of Science and Technology Hubei Province 437100 China
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47
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Zhou X, Xu X, Shi Z, Liu K, Gao H, Li W. Enolate-mediated 1,3-dipolar cycloaddition reaction of β-functionalized ketones with nitrile oxides: direct access to 3,4,5-trisubstituted isoxazoles. Org Biomol Chem 2016; 14:5246-50. [DOI: 10.1039/c6ob00717a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Enolate-mediated [3 + 2] organocatalytic 1,3-dipolar cycloaddition reactions of β-functionalized ketones with nitrile oxides have been developed. This strategy could generate 3,4,5-trisubstituted isoxazole in high yields and regioselectivities.
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Affiliation(s)
- Xiao Zhou
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Xianhong Xu
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Zhenyan Shi
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Kun Liu
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Hua Gao
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Wenjun Li
- School of Pharmacy
- Qingdao University
- Qingdao
- China
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48
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Xu X, Shi Z, Li W. Organocatalytic 1,3-dipolar [3+3] cycloaddition reaction of 1,2-cyclohexanedione with azides: direct access to highly substituted 1,2,3-triazoles. NEW J CHEM 2016. [DOI: 10.1039/c6nj01083k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enamine-mediated 1,3-dipolar [3+3] cycloaddition reactions of 1,2-cyclohexanedione with azides have been developed. This strategy could generate highly substituted 1,2,3-triazoles in high yields and high levels of regioselectivities. It is demonstrated that various types of products could be obtained with different organocatalysts and substrates.
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Affiliation(s)
- Xianhong Xu
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Zhenyan Shi
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Wenjun Li
- School of Pharmacy
- Qingdao University
- Qingdao
- China
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49
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Bahrami K, Sheikh Arabi M. Copper immobilized ferromagnetic nanoparticle triazine dendrimer (FMNP@TD–Cu(ii))-catalyzed regioselective synthesis of 1,4-disubstituted 1,2,3-triazoles. NEW J CHEM 2016. [DOI: 10.1039/c5nj03219a] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis, characterisation and catalytic activity of FMNP@TD–Cu(ii) for the synthesis of 1,4-disubstituted 1,2,3-triazoles are reported.
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Affiliation(s)
- Kiumars Bahrami
- Department of Organic Chemistry
- Faculty of Chemistry
- Razi University
- Kermanshah 67149-67346
- Iran
| | - Mehdi Sheikh Arabi
- Department of Organic Chemistry
- Faculty of Chemistry
- Razi University
- Kermanshah 67149-67346
- Iran
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50
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Singh H, Khanna G, Nand B, Khurana JM. Metal-free synthesis of 1,2,3-triazoles by azide–aldehyde cycloaddition under ultrasonic irradiation in TSIL [DBU-Bu]OH and in hydrated IL Bu4NOH under heating. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1623-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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