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Rath S, Mohanty B, Sen S. "All-Aqueous" Tandem Boc-Deprotection and Alkylation of N-Bocbenzimidazole Derivatives under Visible Light with Alkyl Aryl Diazoacetates: Application to Site-Selective Insertion of Carbenes into the N-H Bond of Purines. J Org Chem 2023; 88:1036-1048. [PMID: 36579969 DOI: 10.1021/acs.joc.2c02467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Herein, we have reported a blue LED-induced tandem Boc-deprotection and NH-alkylation of benzimidazole derivatives with methyl aryl diazoacetates. The reactions occur in water at room temperature. The desired products are obtained in good to excellent yields. The putative mechanism of this reaction is discussed based on control experiments and supported by DFT studies. Additionally, the strategy is used to alkylate various purine derivatives via site-selective N1-alkylation to generate acyclic nucleoside analogues.
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Affiliation(s)
- Suchismita Rath
- Department of Chemistry, School of Natural Sciences, Shiv Nadar Institute of Eminence Deemed to be University, Chithera, Gautam Buddha Nagar, Dadri, Uttar Pradesh 201314, India
| | - Biswajit Mohanty
- Department of Chemistry, School of Natural Sciences, Shiv Nadar Institute of Eminence Deemed to be University, Chithera, Gautam Buddha Nagar, Dadri, Uttar Pradesh 201314, India
| | - Subhabrata Sen
- Department of Chemistry, School of Natural Sciences, Shiv Nadar Institute of Eminence Deemed to be University, Chithera, Gautam Buddha Nagar, Dadri, Uttar Pradesh 201314, India
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2
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Burcevs A, Novosjolova I. Recent progress in the synthesis of N7(N9)-alkyl(aryl)purines (microreview). Chem Heterocycl Compd (N Y) 2022. [DOI: 10.1007/s10593-022-03105-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Mittersteiner M, Farias FFS, Bonacorso HG, Martins MAP, Zanatta N. Ultrasound-assisted synthesis of pyrimidines and their fused derivatives: A review. ULTRASONICS SONOCHEMISTRY 2021; 79:105683. [PMID: 34562732 PMCID: PMC8473776 DOI: 10.1016/j.ultsonch.2021.105683] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 07/12/2021] [Accepted: 07/20/2021] [Indexed: 06/09/2023]
Abstract
The pyrimidine scaffold is present in many bioactive drugs; therefore, efficient synthetic routes that provide shorter reaction times, higher yields, and site-selective reactions are constantly being sought. Ultrasound (US) irradiation has emerged as an alternative energy source in the synthesis of these heterocyclic scaffolds, and over the last ten years there has been a significant increase in the number of publications mentioning US in either the construction or derivatization of the pyrimidine core. This review presents a detailed summary (with 140 references) of the effects of US (synergic or not) on the construction and derivatization of the pyrimidine core through classical reactions (e.g., multicomponent, cyclocondensation, cycloaddition, and alkylation reactions). The main points that were taken into consideration are as follows: chemo- and regioselectivity issues, and the results of conventional heating methods compared to US and mechanistic insights that are also presented and discussed for key reactions.
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Affiliation(s)
- Mateus Mittersteiner
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil.
| | - Fellipe F S Farias
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil
| | - Helio G Bonacorso
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil
| | - Marcos A P Martins
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil
| | - Nilo Zanatta
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil.
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Rocha DHA, Machado CM, Sousa V, Sousa CFV, Silva VLM, Silva AMS, Borges J, Mano JF. Customizable and Regioselective One‐Pot N−H Functionalization of DNA Nucleobases to Create a Library of Nucleobase Derivatives for Biomedical Applications. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100786] [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]
Affiliation(s)
- Djenisa H. A. Rocha
- CICECO – Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago 3810-193 Aveiro Portugal
| | - Carmen M. Machado
- CICECO – Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago 3810-193 Aveiro Portugal
| | - Vera Sousa
- CICECO – Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago 3810-193 Aveiro Portugal
| | - Cristiana F. V. Sousa
- CICECO – Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago 3810-193 Aveiro Portugal
| | - Vera L. M. Silva
- LAQV-REQUIMTE Department of Chemistry University of Aveiro Campus Universitário de Santiago 3810-193 Aveiro Portugal
| | - Artur M. S. Silva
- LAQV-REQUIMTE Department of Chemistry University of Aveiro Campus Universitário de Santiago 3810-193 Aveiro Portugal
| | - João Borges
- CICECO – Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago 3810-193 Aveiro Portugal
| | - João F. Mano
- CICECO – Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago 3810-193 Aveiro Portugal
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Gingipalli L, Boerth J, Emmons D, Grebe T, Hatoum-Mokdad H, Peng B, Sha L, Tentarelli S, Wang H, Wu Y, Zheng X, Edmondson S, Gopalsamy A. Photoredox Catalysis: 1,4-Conjugate Addition of N-Methyl Radicals to Electron-Deficient Olefins via Decarboxylation of N-Substituted Acetic Acids. Org Lett 2020; 22:3418-3422. [DOI: 10.1021/acs.orglett.0c00873] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Lakshmaiah Gingipalli
- Medicinal Chemistry, Research and Early Development, Oncology R&D, AstraZeneca, Waltham, Massachusetts 02451, United States
| | - Jeffrey Boerth
- Medicinal Chemistry, Research and Early Development, Oncology R&D, AstraZeneca, Waltham, Massachusetts 02451, United States
| | - David Emmons
- Medicinal Chemistry, Research and Early Development, Oncology R&D, AstraZeneca, Waltham, Massachusetts 02451, United States
| | - Tyler Grebe
- Medicinal Chemistry, Research and Early Development, Oncology R&D, AstraZeneca, Waltham, Massachusetts 02451, United States
| | - Holia Hatoum-Mokdad
- Medicinal Chemistry, Research and Early Development, Oncology R&D, AstraZeneca, Waltham, Massachusetts 02451, United States
| | - Bo Peng
- Medicinal Chemistry, Research and Early Development, Oncology R&D, AstraZeneca, Waltham, Massachusetts 02451, United States
| | - Li Sha
- Medicinal Chemistry, Research and Early Development, Oncology R&D, AstraZeneca, Waltham, Massachusetts 02451, United States
| | - Sharon Tentarelli
- Medicinal Chemistry, Research and Early Development, Oncology R&D, AstraZeneca, Waltham, Massachusetts 02451, United States
| | - Haixia Wang
- Medicinal Chemistry, Research and Early Development, Oncology R&D, AstraZeneca, Waltham, Massachusetts 02451, United States
| | - Ye Wu
- Medicinal Chemistry, Research and Early Development, Oncology R&D, AstraZeneca, Waltham, Massachusetts 02451, United States
| | - XiaoLan Zheng
- Medicinal Chemistry, Research and Early Development, Oncology R&D, AstraZeneca, Waltham, Massachusetts 02451, United States
| | - Scott Edmondson
- Medicinal Chemistry, Research and Early Development, Oncology R&D, AstraZeneca, Waltham, Massachusetts 02451, United States
| | - Ariamala Gopalsamy
- Medicinal Chemistry, Research and Early Development, Oncology R&D, AstraZeneca, Waltham, Massachusetts 02451, United States
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