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Nguyen KT, Huynh TNT, Ratanathawornkiti K, Juthathan M, Thamyongkit P, Sukwattanasinitt M, Wacharasindhu S. NaI-Mediated Electrochemical Cyclization-Desulfurization for the Synthesis of N-Substituted 2-Aminobenzimidazoles. J Org Chem 2024; 89:1591-1608. [PMID: 38102091 DOI: 10.1021/acs.joc.3c02212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
An electrochemical method for the synthesis of N-substituted 2-aminobenzimidazoles through a NaI-mediated desulfurization-cyclization process is reported. This electrosynthesis method utilizes cost-effective NaI as both a mediator and an electrolyte in a catalytic amount (0.2 equiv), replacing traditional oxidizing reagents. N-Substituted o-phenylenediamines and isothiocyanates undergo a thiourea formation/cyclization/desulfurization process to provide N-substituted 2-aminobenzimidazoles (55 examples, up to 98% yield) in a single reaction vessel. Importantly, this electrochemical methodology is applicable to gram-scale synthesis, maintaining reaction efficiency.
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Affiliation(s)
- Khuyen Thu Nguyen
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Thao Nguyen Thanh Huynh
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | | | - Methasit Juthathan
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Patchanita Thamyongkit
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | | | - Sumrit Wacharasindhu
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
- Green Chemistry for Fine Chemical Productions and Environmental Remediation Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
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Cruz A, Martínez IIP, Ramos-Organillo AA. Methods to Access 2-aminobenzimidazoles of Medicinal Importance. CURR ORG CHEM 2020. [DOI: 10.2174/1385272823666191023150201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
:Benzimidazole (BI) and derivatives are interesting because several of these compounds have been found to have a diversity of biological activities with clinical applications. In view of their importance, the synthesis of BI and its derivatives is still considered as a challenge for synthetic chemists. Examples of compounds used in medicinal chemistry containing BI, as important nucleus, are Astemizole (antihistaminic), Omeprazole (antiulcerative) and Rabendazole (fungicide), some of these compounds have the 2- aminobenzimidazole (2ABI) as base nucleus. The structure of 2ABI derivatives contains a cyclic guanidine moiety, which is interesting because of its free lone pairs, labile hydrogen atoms and planar delocalized structure. The delocalized 10-π electron system and the extension of the electron conjugation with the exocyclic amino group, in 2ABI, making these heterocycles to have amphoteric character. The 2ABI has been used as building blocks for the synthesis of several BI derivatives as medicinally important molecules. On these bases, herein, we present a bibliographic review concerning the recent methodologies used in the synthesis of 2ABIs, including the substituted ones.
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Affiliation(s)
- Alejandro Cruz
- Instituto Politécnico Nacional-UPIBI, Laboratorio de Química Supramolecular y Nanociencias, Av. Acueducto s/n, Barrio la Laguna Ticomán, México, D. F, 07340, Mexico
| | - Itzia I. Padilla Martínez
- Instituto Politécnico Nacional-UPIBI, Laboratorio de Química Supramolecular y Nanociencias, Av. Acueducto s/n, Barrio la Laguna Ticomán, México, D. F, 07340, Mexico
| | - Angel A. Ramos-Organillo
- Facultad de Ciencias Químicas, Universidad de Colima, Km 9 Carr. Colima- Coquimatlán, 28400, Coquimatlán, Colima, Mexico
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3
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Duan S, Place D, Perfect HH, Ide ND, Maloney M, Sutherland K, Price Wiglesworth KE, Wang K, Olivier M, Kong F, Leeman K, Blunt J, Draper J, McAuliffe M, O’Sullivan M, Lynch D. Palbociclib Commercial Manufacturing Process Development. Part I: Control of Regioselectivity in a Grignard-Mediated SNAr Coupling. Org Process Res Dev 2016. [DOI: 10.1021/acs.oprd.6b00070] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Shengquan Duan
- Chemical
Research and Development and Analytical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - David Place
- Chemical
Research and Development and Analytical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Hahdi H. Perfect
- Chemical
Research and Development and Analytical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Nathan D. Ide
- Chemical
Research and Development and Analytical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Mark Maloney
- Chemical
Research and Development and Analytical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Karen Sutherland
- Chemical
Research and Development and Analytical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Kristin E. Price Wiglesworth
- Chemical
Research and Development and Analytical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Ke Wang
- Chemical
Research and Development and Analytical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Mark Olivier
- Chemical
Research and Development and Analytical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Fangming Kong
- Chemical
Research and Development and Analytical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Kyle Leeman
- Chemical
Research and Development and Analytical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Jon Blunt
- Chemical
Research and Development, Pfizer Process Development Facility, Ramsgate Road, Sandwich, Kent, CT13 9NJ, United Kingdom
| | - John Draper
- Chemical
Research and Development, Pfizer Process Development Facility, Ramsgate Road, Sandwich, Kent, CT13 9NJ, United Kingdom
| | | | | | - Denis Lynch
- Pfizer Global Supply, Ringaskiddy, Co. Cork, Ireland
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Abdul Khader K, Sajith AM, Ali Padusha MS, Nagaswarupa H, Muralidharan A. Regioselective synthesis of C-2 substituted imidazo[4,5-b]pyridines utilizing palladium catalysed C–N bond forming reactions with enolizable heterocycles. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.01.114] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Rosenberg AJ, Williams TM, Jordan AJ, Clark DA. Synthesis of 2-amino-imidazo[4,5-b]pyridines. Org Biomol Chem 2013; 11:3064-72. [DOI: 10.1039/c3ob40413g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Affiliation(s)
- Adam J. Rosenberg
- Department of Chemistry, 1-014 Center for Science and Technology, Syracuse University, Syracuse, New York 13244, United States
| | - Daniel A. Clark
- Department of Chemistry, 1-014 Center for Science and Technology, Syracuse University, Syracuse, New York 13244, United States
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7
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Xi C, Wang F, Zhao P. Copper-Catalyzed Domino Reaction of Heteroallenes towards Benzo-Heterocycle Compounds. HETEROCYCLES 2012. [DOI: 10.3987/rev-11-sr(p)6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Sieser JE, Singer RA, McKinley JD, Bourassa DE, Teixeira JJ, Long J. Synthesis of a Bicyclic Piperazine from l-Aspartic Acid and Application of a Fluoride-Promoted SNAr Coupling. Org Process Res Dev 2011. [DOI: 10.1021/op2001854] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Janice E. Sieser
- Chemical Research and Development, Pfizer Worldwide Research and Development, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Robert A. Singer
- Chemical Research and Development, Pfizer Worldwide Research and Development, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Jason D. McKinley
- Chemical Research and Development, Pfizer Worldwide Research and Development, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Dennis E. Bourassa
- Chemical Research and Development, Pfizer Worldwide Research and Development, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - John J. Teixeira
- Chemical Research and Development, Pfizer Worldwide Research and Development, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - James Long
- Chemical Research and Development, Pfizer Worldwide Research and Development, Sandwich Laboratories, Ramsgate Road, Sandwich, Kent CT13 9NJ, United Kingdom
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9
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Wang F, Cai S, Liao Q, Xi C. A Protocol to 2-Aminobenzimidazoles via Copper-Catalyzed Cascade Addition and Cyclization of o-Haloanilines and Carbodiimides. J Org Chem 2011; 76:3174-80. [DOI: 10.1021/jo200014v] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Fei Wang
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Shangjun Cai
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Qian Liao
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chanjuan Xi
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
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10
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Sørensen US, Strøbæk D, Christophersen P, Hougaard C, Jensen ML, Nielsen EØ, Peters D, Teuber L. Synthesis and Structure−Activity Relationship Studies of 2-(N-Substituted)-aminobenzimidazoles as Potent Negative Gating Modulators of Small Conductance Ca2+-Activated K+ Channels. J Med Chem 2008; 51:7625-34. [DOI: 10.1021/jm800809f] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
| | - Dorte Strøbæk
- NeuroSearch A/S, Pederstrupvej 93, DK-2750 Ballerup, Denmark
| | | | | | | | | | - Dan Peters
- NeuroSearch A/S, Pederstrupvej 93, DK-2750 Ballerup, Denmark
| | - Lene Teuber
- NeuroSearch A/S, Pederstrupvej 93, DK-2750 Ballerup, Denmark
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11
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Affiliation(s)
- Masaya Ikunaka
- Research & Development Center, Nagase & Co., Ltd., 2-2-3 Murotani, Nishi-ku, Kobe, 651-2241 Japan
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12
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Lingaiah BPV, Reddy GV, Yakaiah T, Narsaiah B, Reddy SN, Yadla R, Rao PS. Efficient and Convenient Method for the Synthesis of Poly Functionalised 4H‐Pyrans. SYNTHETIC COMMUN 2004. [DOI: 10.1081/scc-200039502] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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13
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Vu CB, Pan D, Peng B, Sha L, Kumaravel G, Jin X, Phadke D, Engber T, Huang C, Reilly J, Tam S, Petter RC. Studies on adenosine A2a receptor antagonists: comparison of three core heterocycles. Bioorg Med Chem Lett 2004; 14:4831-4. [PMID: 15341933 DOI: 10.1016/j.bmcl.2004.07.047] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2004] [Revised: 07/20/2004] [Accepted: 07/22/2004] [Indexed: 11/25/2022]
Abstract
Piperazine and (R)-2-(aminomethyl)pyrrolidine derivatives of [1,2,4]triazolo[1,5-a][1,3,5]triazine have recently been shown to be potent and selective adenosine A(2a) receptor antagonists. We have replaced the triazolotriazine core structure with two different heterocyclic cores. One of these, the one deriving from [1,2,4]triazolo[1,5-c]pyrimidine, appears to be particularly effective and selected analogs from this series have been shown to be orally active in a mouse catalepsy model of Parkinson's disease.
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Affiliation(s)
- Chi B Vu
- Biogen Idec, Inc., Department of Medicinal Chemistry, 14 Cambridge Center, Cambridge, MA 02142, USA.
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Wang XJ, Zhang L, Xu Y, Krishnamurthy D, Senanayake CH. A practical synthesis of 2-(N-substituted)-aminobenzimidazoles utilizing CuCl-promoted intramolecular cyclization of N-(2-aminoaryl)thioureas. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.07.042] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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