1
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Lai D, Bhattacharjee S, Mandal S, Ghosh S, Sahoo P, Sinha S, Hajra A. Iodine(III)-promoted oxidative carbotrifluoromethylation of maleimides with imidazopyridines and Langlois' reagent. Chem Commun (Camb) 2024; 60:2232-2235. [PMID: 38315091 DOI: 10.1039/d3cc05889a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
A metal-free protocol for oxidative carbotrifluoromethylation of maleimides with imidazopyridines and Langlois' reagent has been developed using (diacetoxyiodo)benzene (PIDA) as an oxidant. This three-component strategy enables one-step construction of 3,4-disubstituted maleimides in good yields with high functional group tolerance. Both experimental and theoretical studies support the proposed radical reaction mechanism.
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Affiliation(s)
- Dipti Lai
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India.
- ISERC, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Suvam Bhattacharjee
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India.
| | - Saurodeep Mandal
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India.
| | - Sumit Ghosh
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India.
- ISERC, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Prithidipa Sahoo
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India.
| | - Subrata Sinha
- ISERC, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India.
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2
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Reisenbauer JC, Paschke ASK, Krizic J, Botlik BB, Finkelstein P, Morandi B. Direct Access to Quinazolines and Pyrimidines from Unprotected Indoles and Pyrroles through Nitrogen Atom Insertion. Org Lett 2023; 25:8419-8423. [PMID: 37983173 DOI: 10.1021/acs.orglett.3c03264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Recent advances in single-atom insertion reactions have opened up new synthetic approaches for molecular diversification. Developing innovative strategies to directly transform biologically relevant molecules, without any prefunctionalization, is key to further expanding the scope and utility of such transformations. Herein, the direct access to quinazolines and pyrimidines from the corresponding unprotected 1H-indoles and 1H-pyrroles is reported, relying on the implementation of lithium bis(trimethylsilyl)amide (LiHMDS) as a novel nitrogen atom source in combination with commercially available hypervalent iodine reagents. Further application of this strategy in late-stage settings demonstrates its potential in lead structure diversification campaigns.
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Affiliation(s)
| | | | - Jelena Krizic
- ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
| | - Bence B Botlik
- ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
| | | | - Bill Morandi
- ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093 Zürich, Switzerland
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3
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Kuang S, Zhu B, Zhang J, Yang F, Wu B, Ding W, Yang L, Shen S, Liang SH, Mondal P, Kumar M, Tanzi RE, Zhang C, Chao H, Ran C. A Photolabile Curcumin-Diazirine Analogue Enables Phototherapy with Physically and Molecularly Produced Light for Alzheimer's Disease Treatment. Angew Chem Int Ed Engl 2023; 62:e202312519. [PMID: 37721455 PMCID: PMC10615883 DOI: 10.1002/anie.202312519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/14/2023] [Accepted: 09/18/2023] [Indexed: 09/19/2023]
Abstract
The development of Alzheimer's disease (AD) drugs has recently witnessed substantial achievement. To further enhance the pool of drug candidates, it is crucial to explore non-traditional therapeutic avenues. In this study, we present the use of a photolabile curcumin-diazirine analogue, CRANAD-147, to induce changes in properties, structures (sequences), and neurotoxicity of amyloid beta (Aβ) species both in cells and in vivo. This manipulation was achieved through irradiation with LED light or molecularly generated light, dubbed as "molecular light", emitted by the chemiluminescence probe ADLumin-4. Next, aided by molecular chemiluminescence imaging, we demonstrated that the combination of CRANAD-147/LED or CRANAD-147/ADLumin-4 (molecular light) could effectively slow down the accumulation of Aβs in transgenic 5xFAD mice in vivo. Leveraging the remarkable tissue penetration capacity of molecular light, phototherapy employing the synergistic effect of a photolabile Aβ ligand and molecular light emerges as a promising alternative to conventional AD treatment interventions.
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Affiliation(s)
- Shi Kuang
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Building 149, Charlestown, Boston, MA-02129, USA
| | - Biyue Zhu
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Building 149, Charlestown, Boston, MA-02129, USA
| | - Jing Zhang
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Building 149, Charlestown, Boston, MA-02129, USA
| | - Fan Yang
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Building 149, Charlestown, Boston, MA-02129, USA
| | - Bo Wu
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Building 149, Charlestown, Boston, MA-02129, USA
| | - Weihua Ding
- MGH Center for Translational Pain Research, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA-02129, USA
| | - Liuyue Yang
- MGH Center for Translational Pain Research, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA-02129, USA
| | - Shiqian Shen
- MGH Center for Translational Pain Research, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA-02129, USA
| | - Seven H Liang
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA-02114, USA
| | - Prasenjit Mondal
- Genetics and Aging Research Unit, McCance Center for Brain Health, MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA-02129, USA
| | - Mohanraja Kumar
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA-02139, USA
| | - Rudolph E Tanzi
- Genetics and Aging Research Unit, McCance Center for Brain Health, MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA-02129, USA
| | - Can Zhang
- Genetics and Aging Research Unit, McCance Center for Brain Health, MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA-02129, USA
| | - Hui Chao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Chongzhao Ran
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Building 149, Charlestown, Boston, MA-02129, USA
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4
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Monreal-Corona R, Solà M, Pla-Quintana A, Poater A. Stereoretentive Formation of Cyclobutanes from Pyrrolidines: Lessons Learned from DFT Studies of the Reaction Mechanism. J Org Chem 2023; 88:4619-4626. [PMID: 36940389 PMCID: PMC10088030 DOI: 10.1021/acs.joc.3c00080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2023]
Abstract
The stereoselective synthesis of cyclobutanes that possess an array of stereocenters in a contiguous fashion has attracted the wide interest of the synthetic community. Cyclobutanes can be generated from the contraction of pyrrolidines through the formation of 1,4-biradical intermediates. Little else is known about the reaction mechanism of this reaction. Here, we unveil the mechanism for this stereospecific synthesis of cyclobutanes by means of density functional theory (DFT) calculations. The rate-determining step of this transformation corresponds to the release of N2 from the 1,1-diazene intermediate to form an open-shell singlet 1,4-biradical. The formation of the stereoretentive product is explained by the barrierless collapse of this open-shell singlet 1,4-biradical. The knowledge of the reaction mechanism is used to predict that the methodology could be amenable to the synthesis of [2]-ladderanes and bicyclic cyclobutanes.
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Affiliation(s)
- Roger Monreal-Corona
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, C/ Maria Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain
| | - Miquel Solà
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, C/ Maria Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain
| | - Anna Pla-Quintana
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, C/ Maria Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain
| | - Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, C/ Maria Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain
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5
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Finkelstein P, Reisenbauer JC, Botlik BB, Green O, Florin A, Morandi B. Nitrogen atom insertion into indenes to access isoquinolines. Chem Sci 2023; 14:2954-2959. [PMID: 36937579 PMCID: PMC10016357 DOI: 10.1039/d2sc06952k] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 02/14/2023] [Indexed: 02/25/2023] Open
Abstract
We report a convenient protocol for a nitrogen atom insertion into indenes to afford isoquinolines. The reaction uses a combination of commercially available phenyliodine(iii) diacetate (PIDA) and ammonium carbamate as the nitrogen source to furnish a wide range of isoquinolines. Various substitution patterns and commonly used functional groups are well tolerated. The operational simplicity renders this protocol broadly applicable and has been successfully extended towards the direct interconversion of cyclopentadienes into the corresponding pyridines. Furthermore, this strategy enables the facile synthesis of 15N labelled isoquinolines, using 15NH4Cl as a commercial 15N source.
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Affiliation(s)
- Patrick Finkelstein
- Laboratorium für Organische Chemie, ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Julia C Reisenbauer
- Laboratorium für Organische Chemie, ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Bence B Botlik
- Laboratorium für Organische Chemie, ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Ori Green
- Laboratorium für Organische Chemie, ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Andri Florin
- Laboratorium für Organische Chemie, ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
| | - Bill Morandi
- Laboratorium für Organische Chemie, ETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Switzerland
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6
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Synthesis of Sulfoximines and Sulfonimidamides Using Hypervalent Iodine Mediated NH Transfer. Molecules 2023; 28:molecules28031120. [PMID: 36770787 PMCID: PMC9920176 DOI: 10.3390/molecules28031120] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/03/2023] [Accepted: 01/12/2023] [Indexed: 01/24/2023] Open
Abstract
The development of NH transfer reactions using hypervalent iodine and simple sources of ammonia has facilitated the synthesis of sulfoximines and sulfonimidamides for applications across the chemical sciences. Perhaps most notably, the methods have been widely applied in medicinal chemistry and in the preparation of biologically active compounds, including in the large-scale preparation of an API intermediate. This review provides an overview of the development of these synthetic methods involving an intermediate iodonitrene since our initial report in 2016 on the conversion of sulfoxides into sulfoximines. This review covers the NH transfer to sulfoxides and sulfinamides, and the simultaneous NH/O transfer to sulfides and sulfenamides to form sulfoximines and sulfonimidamides, respectively. The mechanism of the reactions and the identification of key intermediates are discussed. Developments in the choice of reagents, and in the reaction conditions and setups used are described.
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7
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Reisenbauer JC, Green O, Franchino A, Finkelstein P, Morandi B. Late-stage diversification of indole skeletons through nitrogen atom insertion. Science 2022; 377:1104-1109. [PMID: 36048958 DOI: 10.1126/science.add1383] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Compared with peripheral late-stage transformations mainly focusing on carbon-hydrogen functionalizations, reliable strategies to directly edit the core skeleton of pharmaceutical lead compounds still remain scarce despite the recent flurry of activity in this area. Herein, we report the skeletal editing of indoles through nitrogen atom insertion, accessing the corresponding quinazoline or quinoxaline bioisosteres by trapping of an electrophilic nitrene species generated from ammonium carbamate and hypervalent iodine. This reactivity relies on the strategic use of a silyl group as a labile protecting group that can facilitate subsequent product release. The utility of this highly functional group-compatible methodology in the context of late-stage skeletal editing of several commercial drugs is demonstrated.
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Affiliation(s)
| | - Ori Green
- Laboratorium für Organische Chemie, ETH Zürich, 8093 Zürich, Switzerland
| | - Allegra Franchino
- Laboratorium für Organische Chemie, ETH Zürich, 8093 Zürich, Switzerland
| | | | - Bill Morandi
- Laboratorium für Organische Chemie, ETH Zürich, 8093 Zürich, Switzerland
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8
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Sunagawa S, Morisaki F, Baba T, Tsubouchi A, Yoshimura A, Miyamoto K, Uchiyama M, Saito A. In Situ Generation of N-Triflylimino-λ 3-iodanes: Application to Imidation of Phosphines and Catalytic α-Amidation of 1,3-Dicarbonyl Compounds. Org Lett 2022; 24:5230-5234. [PMID: 35822905 DOI: 10.1021/acs.orglett.2c02264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We describe the imidation of phosphines and α-amidation of 1,3-dicarbonyl compounds using N-triflylimino-λ3-iodane, which is generated in situ from iodosylarene and triflylamide without any other additives. Furthermore, the imino-λ3-iodane catalytically generated from an iodoarene precatalyst with oxone and triflylamide promotes α-amidation of 1,3-dicarbonyl compounds, representing the first method catalyzed by imino-λ3-iodane.
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Affiliation(s)
- Shun Sunagawa
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Fumiya Morisaki
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Takafumi Baba
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Akira Tsubouchi
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Akira Yoshimura
- Faculty of Pharmaceutical Sciences, Aomori University, 2-3-1 Kobata, Aomori 030-0943, Japan
| | - Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,Research Initiative for Supra-Materials (RISM), Shinshu University, Ueda 386-8567, Japan
| | - Akio Saito
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
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9
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Porter NJ, Danelius E, Gonen T, Arnold FH. Biocatalytic Carbene Transfer Using Diazirines. J Am Chem Soc 2022; 144:8892-8896. [PMID: 35561334 DOI: 10.1021/jacs.2c02723] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Biocatalytic carbene transfer from diazo compounds is a versatile strategy in asymmetric synthesis. However, the limited pool of stable diazo compounds constrains the variety of accessible products. To overcome this restriction, we have engineered variants of Aeropyrum pernix protoglobin (ApePgb) that use diazirines as carbene precursors. While the enhanced stability of diazirines relative to their diazo isomers enables access to a diverse array of carbenes, they have previously resisted catalytic activation. Our engineered ApePgb variants represent the first example of catalysts for selective carbene transfer from these species at room temperature. The structure of an ApePgb variant, determined by microcrystal electron diffraction (MicroED), reveals that evolution has enhanced access to the heme active site to facilitate this new-to-nature catalysis. Using readily prepared aryl diazirines as model substrates, we demonstrate the application of these highly stable carbene precursors in biocatalytic cyclopropanation, N-H insertion, and Si-H insertion reactions.
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Affiliation(s)
- Nicholas J Porter
- Division of Chemistry and Chemical Engineering, Division of Biology and Bioengineering, California Institute of Technology, 1200 East California Boulevard, MC 210-41, Pasadena, California 91125, United States
| | - Emma Danelius
- Howard Hughes Medical Institute, University of California Los Angeles, Los Angeles, California 90095, United States.,Department of Biological Chemistry, University of California Los Angeles, 615 Charles E. Young Drive South, Los Angeles, California 90095, United States
| | - Tamir Gonen
- Howard Hughes Medical Institute, University of California Los Angeles, Los Angeles, California 90095, United States.,Department of Biological Chemistry, University of California Los Angeles, 615 Charles E. Young Drive South, Los Angeles, California 90095, United States.,Department of Physiology, University of California Los Angeles, 615 Charles E. Young Drive South, Los Angeles, California 90095, United States
| | - Frances H Arnold
- Division of Chemistry and Chemical Engineering, Division of Biology and Bioengineering, California Institute of Technology, 1200 East California Boulevard, MC 210-41, Pasadena, California 91125, United States
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10
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Fan J, Shu Q, Li YM, Shi J. Efficient synthesis of terminal-diazirine-based histone peptide probes. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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Abstract
Herein, we described an efficient method for the construction of highly functionalized diazirines from the carbohydrazide and diazo-substituted hypervalent iodine reagents. Unambiguous transformation has been designed with user applicable and easy practicable conditions. Remarkably, d-glucose, menthol, aspirin, proline, and lithocholic acid were efficiently diazirinated. Furthermore, the method is mild, robust, and highly selective, which successfully converted a variety of aryl, alkyl, benzyl, and heterocyclic hydrazides into the corresponding diazirine derivatives.
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Affiliation(s)
- Monish Arbaz Ansari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - Ganesh Kumar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - Maya Shankar Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
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12
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Hui C, Wang S, Xu C. Dinitrogen extrusion from diazene in organic synthesis. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.03.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Hui C, Antonchick AP. Iodonitrene: a direct metal-free electrophilic aminating reagent. Org Chem Front 2022. [DOI: 10.1039/d2qo00739h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Iodonitrene is a new type of reactive electrophilic aminating reagent that opens up opportunities for new discoveries.
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Affiliation(s)
- Chunngai Hui
- Max Planck Institute of Molecular Physiology, Department of Chemical Biology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
- Technical University Dortmund, Faculty of Chemistry and Chemical Biology, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany
| | - Andrey P. Antonchick
- Max Planck Institute of Molecular Physiology, Department of Chemical Biology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
- Technical University Dortmund, Faculty of Chemistry and Chemical Biology, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany
- Nottingham Trent University, School of Science and Technology, Department of Chemistry and Forensics, Clifton Lane, NG11 8NS Nottingham, UK
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14
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Abstract
Natural products have significant biological properties that arise from their fascinating molecular architectures. Despite many advances in synthetic method development, the efficient synthesis of highly-functionalized and structurally intricate natural products...
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15
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MacCulloch K, Tomhon P, Browning A, Akeroyd E, Lehmkuhl S, Chekmenev EY, Theis T. Hyperpolarization of common antifungal agents with SABRE. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2021; 59:1225-1235. [PMID: 34121211 PMCID: PMC8595556 DOI: 10.1002/mrc.5187] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 06/08/2021] [Accepted: 06/10/2021] [Indexed: 05/09/2023]
Abstract
Signal amplification by reversible exchange (SABRE) is a robust and inexpensive hyperpolarization (HP) technique to enhance nuclear magnetic resonance (NMR) spectroscopy and magnetic resonance imaging (MRI) signals using parahydrogen (pH2 ). The substrate scope of SABRE is continually expanding. Here, we present the polarization of three antifungal drugs (voriconazole, clotrimazole, and fluconazole) and elicit the detailed HP mechanisms for 1 H and 15 N nuclei. In this exploratory work, 15 N polarization values of ~1% were achieved using 50% pH2 in solution of 3-mM catalyst and 60-mM substrate in perdeuterated methanol. All hyperpolarized 15 N sites exhibited long T1 in excess of 1 min at a clinically relevant field of 1 T. Hyperpolarizing common drugs is of interest due to their potential biomedical applications as MRI contrast agents or to enable studies on protein dynamics at physiological concentrations. We optimize the polarization with respect to temperature and the polarization transfer field (PTF) for 1 H nuclei in the millitesla regime and for 15 N nuclei in the microtesla regime, which provides detailed insights into exchange kinetics and spin evolution. This work broadens the SABRE substrate scope and provides mechanistic and kinetic insights into the HP process.
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Affiliation(s)
- Keilian MacCulloch
- Department of Chemistry, North Carolina State University, Raleigh, NC, USA
| | - Patrick Tomhon
- Department of Chemistry, North Carolina State University, Raleigh, NC, USA
| | - Austin Browning
- Department of Chemistry, North Carolina State University, Raleigh, NC, USA
| | - Evan Akeroyd
- Department of Chemistry, North Carolina State University, Raleigh, NC, USA
| | - Sören Lehmkuhl
- Department of Chemistry, North Carolina State University, Raleigh, NC, USA
| | - Eduard Y Chekmenev
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, MI, USA
- Chemistry, Russian Academy of Sciences, Moscow, Moscow Region, Russia
| | - Thomas Theis
- Department of Chemistry, North Carolina State University, Raleigh, NC, USA
- Joint Department of Biomedical Engineering, University of North Carolina, Chapel Hill, NC and North Carolina State University, Raleigh, NC, USA
- Department of Physics, North Carolina State University, Raleigh, NC, USA
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16
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Hui C, Brieger L, Strohmann C, Antonchick AP. Stereoselective Synthesis of Cyclobutanes by Contraction of Pyrrolidines. J Am Chem Soc 2021; 143:18864-18870. [PMID: 34748319 PMCID: PMC8603356 DOI: 10.1021/jacs.1c10175] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Here we report a contractive synthesis of multisubstituted cyclobutanes containing multiple stereocenters from readily accessible pyrrolidines using iodonitrene chemistry. Mediated by a nitrogen extrusion process, the stereospecific synthesis of cyclobutanes involves a radical pathway. Unprecedented unsymmetrical spirocyclobutanes were prepared successfully, and a concise, formal synthesis of the cytotoxic natural product piperarborenine B is reported.
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Affiliation(s)
- Chunngai Hui
- Max Planck Institute of Molecular Physiology, Department of Chemical Biology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany.,Technical University Dortmund, Faculty of Chemistry and Chemical Biology, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany
| | - Lukas Brieger
- Technical University Dortmund, Faculty of Chemistry and Chemical Biology, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany
| | - Carsten Strohmann
- Technical University Dortmund, Faculty of Chemistry and Chemical Biology, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany
| | - Andrey P Antonchick
- Max Planck Institute of Molecular Physiology, Department of Chemical Biology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany.,Technical University Dortmund, Faculty of Chemistry and Chemical Biology, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany.,Nottingham Trent University, School of Science and Technology, Department of Chemistry and Forensics, Clifton Lane, NG11 8NS Nottingham, United Kingdom
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17
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Li Y, Wang H, Zhang H, Lei A. Electrochemical Dimethyl
Sulfide‐Mediated
Esterification of Amino Acids. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yongli Li
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS) Wuhan University Wuhan Hubei 430072 China
| | - Huamin Wang
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS) Wuhan University Wuhan Hubei 430072 China
| | - Heng Zhang
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS) Wuhan University Wuhan Hubei 430072 China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS) Wuhan University Wuhan Hubei 430072 China
- National Research Center for Carbohydrate Synthesis Jiangxi Normal University Nanchang Jiangxi 330022 China
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18
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Pan W, Li C, Zhu H, Li F, Li T, Zhao W. A mild and practical method for deprotection of aryl methyl/benzyl/allyl ethers with HPPh 2 and tBuOK. Org Biomol Chem 2021; 19:7633-7640. [PMID: 34524311 DOI: 10.1039/d1ob01286j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A general method for the demethylation, debenzylation, and deallylation of aryl ethers using HPPh2 and tBuOK is reported. The reaction features mild and metal-free reaction conditions, broad substrate scope, good functional group compatibility, and high chemical selectivity towards aryl ethers over aliphatic structures. Notably, this approach is competent to selectively deprotect the allyl or benzyl group, making it a general and practical method in organic synthesis.
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Affiliation(s)
- Wenjing Pan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China.
| | - Chenchen Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China.
| | - Haoyin Zhu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China.
| | - Fangfang Li
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China.
| | - Tao Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China.
| | - Wanxiang Zhao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China.
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19
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Kumar A, Katiyar S, Kumar Jaiswal A, Kant R, Sashidhara KV. PIDA-mediated oxidative aromatic C N bond cleavage: Efficient methodology for the synthesis of 1,2-diaza-1,3-dienes under ambient conditions. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153252] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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20
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Ibert Q, Cauwel M, Glachet T, Tite T, Le Nahenec‐Martel P, Lohier J, Renard P, Franck X, Reboul V, Sabot C. One‐Pot Synthesis of Diazirines and
15
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‐Diazirines from Ketones, Aldehydes and Derivatives: Development and Mechanistic Insight. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100679] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Quentin Ibert
- Normandie Univ ENSICAEN, UNICAEN, CNRS, LCMT 6 Boulevard du Maréchal Juin 14050 Caen Cedex
| | - Madeleine Cauwel
- Normandie Univ CNRS, UNIROUEN, INSA Rouen, COBRA 76000 Rouen France
| | - Thomas Glachet
- Normandie Univ ENSICAEN, UNICAEN, CNRS, LCMT 6 Boulevard du Maréchal Juin 14050 Caen Cedex
| | - Tony Tite
- Normandie Univ CNRS, UNIROUEN, INSA Rouen, COBRA 76000 Rouen France
| | | | - Jean‐François Lohier
- Normandie Univ ENSICAEN, UNICAEN, CNRS, LCMT 6 Boulevard du Maréchal Juin 14050 Caen Cedex
| | | | - Xavier Franck
- Normandie Univ CNRS, UNIROUEN, INSA Rouen, COBRA 76000 Rouen France
| | - Vincent Reboul
- Normandie Univ ENSICAEN, UNICAEN, CNRS, LCMT 6 Boulevard du Maréchal Juin 14050 Caen Cedex
| | - Cyrille Sabot
- Normandie Univ CNRS, UNIROUEN, INSA Rouen, COBRA 76000 Rouen France
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21
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Conway LP, Jadhav AM, Homan RA, Li W, Rubiano JS, Hawkins R, Lawrence RM, Parker CG. Evaluation of fully-functionalized diazirine tags for chemical proteomic applications. Chem Sci 2021; 12:7839-7847. [PMID: 34168837 PMCID: PMC8188597 DOI: 10.1039/d1sc01360b] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 04/28/2021] [Indexed: 12/13/2022] Open
Abstract
The use of photo-affinity reagents for the mapping of noncovalent small molecule-protein interactions has become widespread. Recently, several 'fully-functionalized' (FF) chemical tags have been developed wherein a photoactivatable capture group, an enrichment handle, and a functional group for synthetic conjugation to a molecule of interest are integrated into a single modular tag. Diazirine-based FF tags in particular are increasingly employed in chemical proteomic investigations; however, despite routine usage, their relative utility has not been established. Here, we systematically evaluate several diazirine-containing FF tags, including a terminal diazirine analog developed herein, for chemical proteomic investigations. Specifically, we compared the general reactivity of five diazirine tags and assessed their impact on the profiles of various small molecules, including fragments and known inhibitors revealing that such tags can have profound effects on the proteomic profiles of chemical probes. Our findings should be informative for chemical probe design, photo-affinity reagent development, and chemical proteomic investigations.
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Affiliation(s)
- Louis P Conway
- Department of Chemistry, The Scripps Research Institute Jupiter FL USA
| | - Appaso M Jadhav
- Department of Chemistry, The Scripps Research Institute Jupiter FL USA
| | - Rick A Homan
- Department of Chemistry, The Scripps Research Institute Jupiter FL USA
| | - Weichao Li
- Department of Chemistry, The Scripps Research Institute Jupiter FL USA
| | | | - Richard Hawkins
- Department of Chemistry, The Scripps Research Institute Jupiter FL USA
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22
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Molecular structure of 1,2-diethyldiaziridine studied by gas electron diffraction supported by quantum chemistry calculations. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129066] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Yang YO, Wang X, Xiao J, Li Y, Sun F, Du Y. Formation of Carbon-Nitrogen Bond Mediated by Hypervalent Iodine Reagents Under Metal-free Conditions. CURR ORG CHEM 2021. [DOI: 10.2174/1385272822999201117154919] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
In the past several decades, hypervalent iodine chemistry has witnessed prosperous
development as hypervalent iodine reagents have been widely used in various organic transformations.
Specifically, hypervalent iodine reagents have been vastly used in various bondforming
reactions. Among these oxidative coupling reactions, the reactions involving the
formation of C-N bond have been extensively explored to construct various heterocyclic
skeletons and synthesize various useful building blocks. This review article is to summarize
all the transformations in which carbon-nitrogen bond formation occurred by using hypervalent
iodine reagents under metal-free conditions.
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Affiliation(s)
- Yaxin O. Yang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Xi Wang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Jiaxi Xiao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yadong Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Fengxia Sun
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology; Hebei Research Center of Pharmaceutical and Chemical Engineering, Shijiazhuang 050018, China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
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24
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Tota A, Colella M, Carlucci C, Aramini A, Clarkson G, Degennaro L, Bull JA, Luisi R. N−N Bond Formation Using an Iodonitrene as an Umpolung of Ammonia: Straightforward and Chemoselective Synthesis of Hydrazinium Salts. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001047] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Arianna Tota
- Department of Pharmacy – Drug Sciences University of Bari “A. Moro” Via E. Orabona 4 70125 Bari Italy
| | - Marco Colella
- Department of Pharmacy – Drug Sciences University of Bari “A. Moro” Via E. Orabona 4 70125 Bari Italy
| | - Claudia Carlucci
- Department of Pharmacy – Drug Sciences University of Bari “A. Moro” Via E. Orabona 4 70125 Bari Italy
| | - Andrea Aramini
- Department of Discovery Dompé Farmaceutici S.p.A. Via Campo di Pile L'Aquila 67100 Italy
| | - Guy Clarkson
- Department of Chemistry University of Warwick Gibbet Hill Road Coventry CV4 7AL UK
| | - Leonardo Degennaro
- Department of Pharmacy – Drug Sciences University of Bari “A. Moro” Via E. Orabona 4 70125 Bari Italy
| | - James A. Bull
- Department of Chemistry Imperial College London Molecular Sciences Research Hub, White City Campus Wood Lane London W12 0BZ UK
| | - Renzo Luisi
- Department of Pharmacy – Drug Sciences University of Bari “A. Moro” Via E. Orabona 4 70125 Bari Italy
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25
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Recent advances in biocatalytic derivatization of L-tyrosine. Appl Microbiol Biotechnol 2020; 104:9907-9920. [PMID: 33067683 DOI: 10.1007/s00253-020-10949-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/29/2020] [Accepted: 10/05/2020] [Indexed: 01/29/2023]
Abstract
L-Tyrosine is an aromatic, polar, non-essential amino acid that contains a highly reactive α-amino, α-carboxyl, and phenolic hydroxyl group. Derivatization of these functional groups can produce chemicals, such as L-3,4-dihydroxyphenylalanine, tyramine, 4-hydroxyphenylpyruvic acid, and benzylisoquinoline alkaloids, which are widely employed in the pharmaceutical, food, and cosmetics industries. In this review, we summarize typical L-tyrosine derivatizations catalyzed by enzymatic biocatalysts, as well as the strategies and challenges associated with their production processes. Finally, we discuss future perspectives pertaining to the enzymatic production of L-tyrosine derivatives.Key points• Summary of recent advances in enzyme-catalyzed L-tyrosine derivatization.• Highlights of relevant strategies involved in L-tyrosine derivatives biosynthesis.• Future perspectives on industrial applications of L-tyrosine derivatization.
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26
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Jeong HJ, Min S, Chae H, Kim S, Lee G, Namgoong SK, Jeong K. Signal amplification by reversible exchange for COVID-19 antiviral drug candidates. Sci Rep 2020; 10:14290. [PMID: 32868801 PMCID: PMC7459298 DOI: 10.1038/s41598-020-71282-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 08/11/2020] [Indexed: 12/02/2022] Open
Abstract
Several drug candidates have been proposed and tested as the latest clinical treatment for coronavirus pneumonia (COVID-19). Chloroquine, hydroxychloroquine, ritonavir/lopinavir, and favipiravir are under trials for the treatment of this disease. The hyperpolarization technique has the ability to further provide a better understanding of the roles of these drugs at the molecular scale and in different applications in the field of nuclear magnetic resonance/magnetic resonance imaging. This technique may provide new opportunities in diagnosis and research of COVID-19. Signal amplification by reversible exchange-based hyperpolarization studies on large-sized drug candidates were carried out. We observed hyperpolarized proton signals from whole structures, due to the unprecedented long-distance polarization transfer by para-hydrogen. We also found that the optimal magnetic field for the maximum polarization transfer yield was dependent on the molecular structure. We can expect further research on the hyperpolarization of other important large molecules, isotope labeling, as well as polarization transfer on nuclei with a long spin relaxation time. A clinical perspective of these features on drug molecules can broaden the application of hyperpolarization techniques for therapeutic studies.
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Affiliation(s)
- Hye Jin Jeong
- Department of Chemistry, Korea Military Academy, Seoul, 01805, South Korea
| | - Sein Min
- Department of Chemistry, Seoul Women's University, Seoul, 01797, South Korea
| | - Heelim Chae
- Department of Chemistry, Seoul Women's University, Seoul, 01797, South Korea
| | - Sarah Kim
- Department of Chemistry, Seoul Women's University, Seoul, 01797, South Korea
| | - Gunwoo Lee
- Department of Chemistry, Korea Military Academy, Seoul, 01805, South Korea
| | - Sung Keon Namgoong
- Department of Chemistry, Seoul Women's University, Seoul, 01797, South Korea
| | - Keunhong Jeong
- Department of Chemistry, Korea Military Academy, Seoul, 01805, South Korea.
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27
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Hassan MM, Olaoye OO. Recent Advances in Chemical Biology Using Benzophenones and Diazirines as Radical Precursors. Molecules 2020; 25:E2285. [PMID: 32414020 PMCID: PMC7288102 DOI: 10.3390/molecules25102285] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 05/06/2020] [Accepted: 05/09/2020] [Indexed: 12/19/2022] Open
Abstract
The use of light-activated chemical probes to study biological interactions was first discovered in the 1960s, and has since found many applications in studying diseases and gaining deeper insight into various cellular mechanisms involving protein-protein, protein-nucleic acid, protein-ligand (drug, probe), and protein-co-factor interactions, among others. This technique, often referred to as photoaffinity labelling, uses radical precursors that react almost instantaneously to yield spatial and temporal information about the nature of the interaction and the interacting partner(s). This review focuses on the recent advances in chemical biology in the use of benzophenones and diazirines, two of the most commonly known light-activatable radical precursors, with a focus on the last three years, and is intended to provide a solid understanding of their chemical and biological principles and their applications.
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Affiliation(s)
- Muhammad Murtaza Hassan
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road North, Mississauga, ON L5L 1C6, Canada;
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Olasunkanmi O. Olaoye
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road North, Mississauga, ON L5L 1C6, Canada;
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
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