1
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Munch M, Mair BA, Adi M, Rotstein BH. Photocatalyzed radiosynthesis of 11C-phenylacetic acids. J Labelled Comp Radiopharm 2024; 67:211-216. [PMID: 37941130 DOI: 10.1002/jlcr.4073] [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: 07/28/2023] [Revised: 09/26/2023] [Accepted: 10/16/2023] [Indexed: 11/10/2023]
Abstract
Fast and straightforward incorporation of radionuclides into pharmaceutically relevant molecules is one of the main barriers to preclinical and clinical tracer research. Late-stage direct incorporation of cyclotron-produced [11C]CO2 to afford carbon-11-labeled radiopharmaceuticals has the potential to provide ready-to-inject positron emission tomography agents in less than an hour. The present work describes photocatalyzed carboxylation of alkylbenzene derivatives to afford 11C-phenylacetic acids. Reaction conditions and scope are investigated followed by application of this methodology to the preparative radiosynthesis of [11C]fenoprofen, a nonsteroidal anti-inflammatory drug.
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Affiliation(s)
- Maxime Munch
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Braeden A Mair
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada
| | - Myriam Adi
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada
| | - Benjamin H Rotstein
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada
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2
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Lin D, Lechermann LM, Huestis MP, Marik J, Sap JBI. Light-Driven Radiochemistry with Fluorine-18, Carbon-11 and Zirconium-89. Angew Chem Int Ed Engl 2024; 63:e202317136. [PMID: 38135665 DOI: 10.1002/anie.202317136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 12/24/2023]
Abstract
This review discusses recent advances in light-driven radiochemistry for three key isotopes: fluorine-18, carbon-11, and zirconium-89, and their applications in positron emission tomography (PET). In the case of fluorine-18, the predominant approach involves the use of cyclotron-produced [18F]fluoride or reagents derived thereof. Light serves to activate either the substrate or the fluorine-18 labeled reagent. Advancements in carbon-11 photo-mediated radiochemistry have been leveraged for the radiolabeling of small molecules, achieving various transformations, including 11C-methylation, 11C-carboxylation, 11C-carbonylation, and 11C-cyanation. Contrastingly, zirconium-89 photo-mediated radiochemistry differs from fluorine-18 and carbon-11 approaches. In these cases, light facilitates a postlabeling click reaction, which has proven valuable for the labeling of large biomolecules such as monoclonal antibodies (mAbs). New technological developments, such as the incorporation of photoreactors in commercial radiosynthesizers, illustrate the commitment the field is making in embracing photochemistry. Taken together, these advances in photo-mediated radiochemistry enable radiochemists to apply new retrosynthetic strategies in accessing novel PET radiotracers.
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Affiliation(s)
- Daniel Lin
- Department of Translational Imaging, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
- Current address: University of Southern California Department of Chemistry, Loker Hydrocarbon Research Institute, 837 Bloom Walk, Los Angeles, CA 90089, USA
| | - Laura M Lechermann
- Department of Translational Imaging, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Malcolm P Huestis
- Discovery Chemistry, Genentech, Inc., DNA Way, South San Francisco, CA 94080, USA
| | - Jan Marik
- Department of Translational Imaging, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
- Discovery Chemistry, Genentech, Inc., DNA Way, South San Francisco, CA 94080, USA
| | - Jeroen B I Sap
- Department of Translational Imaging, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
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3
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Kinney RG, Zgheib J, Lagueux-Tremblay PL, Zhou C, Yang H, Li J, Gauthier DR, Arndtsen BA. A metal-catalysed functional group metathesis approach to the carbon isotope labelling of carboxylic acids. Nat Chem 2024; 16:556-563. [PMID: 38374455 DOI: 10.1038/s41557-024-01447-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 01/11/2024] [Indexed: 02/21/2024]
Abstract
The distribution, metabolism and ultimate fate of molecules within the body is central to the activity of pharmaceuticals. However, the introduction of radioisotopes into the metabolically stable carbon sites on drugs to probe these features typically requires toxic, radioactive gases such as [14C]CO and [14C]CO2. Here we describe an approach to directly carbon-label carboxylic-acid-containing pharmaceuticals via a metal-catalysed functional group exchange reaction, forming 14C-labelled carboxylic-acid-containing drugs without radioactive gases, in one pot, using an easily available and handled carboxylic acid 14C source. To enable this process, a functional group metathesis of carbon-carbon covalent bonds in acid chloride functionalities is developed, exploiting the ability of nickel catalysts to both reversibly activate carbon-chloride bonds and exchange functionalities between organic molecules. The drug development applicability is illustrated by the direct incorporation of the 14C label or 13C label into an array of complex aryl, alkyl, vinyl and heterocyclic carboxylic acid drugs or drug candidates without gases or a special apparatus, at ambient conditions and without loss of the radiolabel.
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Affiliation(s)
- R Garrison Kinney
- Department of Chemistry, McGill University, Montreal, Quebec, Canada
| | - José Zgheib
- Department of Chemistry, McGill University, Montreal, Quebec, Canada
| | | | - Cuihan Zhou
- Department of Chemistry, McGill University, Montreal, Quebec, Canada
| | - Haifeng Yang
- Department of Process Research and Development, Merck & Co., Inc., Rahway, NJ, USA
| | - Jingwei Li
- Department of Process Research and Development, Merck & Co., Inc., Rahway, NJ, USA
| | - Donald R Gauthier
- Department of Process Research and Development, Merck & Co., Inc., Rahway, NJ, USA.
| | - Bruce A Arndtsen
- Department of Chemistry, McGill University, Montreal, Quebec, Canada.
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4
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Derdau V, Elmore CS, Hartung T, McKillican B, Mejuch T, Rosenbaum C, Wiebe C. The Future of (Radio)-Labeled Compounds in Research and Development within the Life Science Industry. Angew Chem Int Ed Engl 2023; 62:e202306019. [PMID: 37610759 DOI: 10.1002/anie.202306019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 08/23/2023] [Accepted: 08/23/2023] [Indexed: 08/24/2023]
Abstract
In this review the applications of isotopically labeled compounds are discussed and put into the context of their future impact in the life sciences. Especially discussing their use in the pharma and crop science industries to follow their fate in the environment, in vivo or in complex matrices to understand the potential harm of new chemical structures and to increase the safety of human society.
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Affiliation(s)
- Volker Derdau
- Sanofi-Aventis Deutschland GmbH, Research & Development, Integrated Drug Discovery, Isotope Chemistry, Industriepark Höchst, G876, 65926, Frankfurt am Main, Germany
| | - Charles S Elmore
- Early Chemical Development, Pharmaceutical Sciences, R&D, AstraZeneca, Mölndal, Sweden
| | - Thomas Hartung
- Pharma Research and Early Development, F. Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Bruce McKillican
- Syngenta Crop Protection, LLC, North America Product Safety (retired), USA
| | - Tom Mejuch
- BASF SE, Agricultural Solutions, Ludwigshafen, Germany
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5
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Bloux H, Khouya AA, Sopkova-de Oliveira Santos J, Fabis F, Dubost E, Cailly T. Gold(I)-Mediated Radioiododecarboxylation of Arenes. Org Lett 2023; 25:8100-8104. [PMID: 37933839 DOI: 10.1021/acs.orglett.3c03191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
A novel radioiodination method is developed using carboxylic acids as radiolabeling precursors. This method involves decarboxylation and organogold(I) intermediate formation, enabling efficient radioiodination of (hetero)arenes and cinnamic and phenylpropiolic acids. Additionally, we demonstrated the prolonged stability of crude gold(I) organometallic compounds, showcasing their enduring radiolabeling capabilities.
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Affiliation(s)
- Hugo Bloux
- Centre d'Etudes et de Recherche sur le Medicament de Normandie, Normandie Université, Caen 14000, France
| | - Ahmed Ait Khouya
- Centre d'Etudes et de Recherche sur le Medicament de Normandie, Normandie Université, Caen 14000, France
| | | | - Frédéric Fabis
- Centre d'Etudes et de Recherche sur le Medicament de Normandie, Normandie Université, Caen 14000, France
| | - Emmanuelle Dubost
- Centre d'Etudes et de Recherche sur le Medicament de Normandie, Normandie Université, Caen 14000, France
- Institut Blood and Brain @ Caen Normandie (BB@C), Caen 14000, France
- Normandie Univ, UMR-S U1237, Physiopathology and Imaging of Neurological Disorders (PhIND), Caen 14000, France
| | - Thomas Cailly
- Centre d'Etudes et de Recherche sur le Medicament de Normandie, Normandie Université, Caen 14000, France
- Institut Blood and Brain @ Caen Normandie (BB@C), Caen 14000, France
- IMOGERE, Normandie Université, Caen 14000, France
- Department of Nuclear Medicine, CHU Cote de Nacre, Caen 14000, France
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6
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Abstract
Stable isotopes such as 2H, 13C, and 15N have important applications in chemistry and drug discovery. Late-stage incorporation of uncommon isotopes via isotopic exchange allows for the direct conversion of complex molecules into their valuable isotopologues without requiring a de novo synthesis. While synthetic methods exist for the conversion of hydrogen and carbon atoms into their less abundant isotopes, a corresponding method for accessing 15N-primary amines from their naturally occurring 14N-analogues has not yet been disclosed. We report an approach to access 15N-labeled primary amines via late-stage isotopic exchange using a simple benzophenone imine as the 15N source. By activating α-1 and α-2° amines to Katritzky pyridinium salts and α-3° amines to redox-active imines, we can engage primary alkyl amines in a deaminative amination. The redox-active imines proceed via a radical-polar crossover mechanism, whereas the Katritzky salts are engaged in copper catalysis via an electron donor-acceptor complex. The method is general for a variety of amines, including multiple drug compounds, and results in complete and selective isotopic labeling.
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Affiliation(s)
- Julia R Dorsheimer
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Tomislav Rovis
- Department of Chemistry, Columbia University, New York, New York 10027, United States
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7
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Labiche A, Malandain A, Molins M, Taran F, Audisio D. Modern Strategies for Carbon Isotope Exchange. Angew Chem Int Ed Engl 2023; 62:e202303535. [PMID: 37074841 DOI: 10.1002/anie.202303535] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/17/2023] [Accepted: 04/19/2023] [Indexed: 04/20/2023]
Abstract
In contrast to stable and natural abundant carbon-12, the synthesis of organic molecules with carbon (radio)isotopes must be conceived and optimized in order to navigate through the hurdles of radiochemical requirements, such as high costs of the starting materials, harsh conditions and radioactive waste generation. In addition, it must initiate from the small cohort of available C-labeled building blocks. For long time, multi-step approaches have represented the sole available patterns. On the other side, the development of chemical reactions based on the reversible cleavage of C-C bonds might offer new opportunities and reshape retrosynthetic analysis in radiosynthesis. This review aims to provide a short survey on the recently emerged carbon isotope exchange technologies that provide effective opportunity for late-stage labeling. At present, such strategies have relied on the use of primary and easily accessible radiolabeled C1-building blocks, such as carbon dioxide, carbon monoxide and cyanides, while the activation principles have been based on thermal, photocatalytic, metal-catalyzed and biocatalytic processes.
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Affiliation(s)
- Alexandre Labiche
- Université Paris Saclay, CEA, Département Médicaments et Technologies pour la Santé, SCBM, 91191, Gif-sur-Yvette, France
| | - Augustin Malandain
- Université Paris Saclay, CEA, Département Médicaments et Technologies pour la Santé, SCBM, 91191, Gif-sur-Yvette, France
| | - Maxime Molins
- Université Paris Saclay, CEA, Département Médicaments et Technologies pour la Santé, SCBM, 91191, Gif-sur-Yvette, France
| | - Frédéric Taran
- Université Paris Saclay, CEA, Département Médicaments et Technologies pour la Santé, SCBM, 91191, Gif-sur-Yvette, France
| | - Davide Audisio
- Université Paris Saclay, CEA, Département Médicaments et Technologies pour la Santé, SCBM, 91191, Gif-sur-Yvette, France
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8
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Day CS, Ton SJ, Kaussler C, Vrønning Hoffmann D, Skrydstrup T. Low Pressure Carbonylation of Benzyl Carbonates and Carbamates for Applications in 13 C Isotope Labeling and Catalytic CO 2 Reduction. Angew Chem Int Ed Engl 2023; 62:e202308238. [PMID: 37439487 DOI: 10.1002/anie.202308238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 07/14/2023]
Abstract
Herein, we report a methodology to access isotopically labeled esters and amides from carbonates and carbamates employing an oxygen deletion strategy. This methodology utilizes a decarboxylative carbonylation approach for isotope labeling with near stoichiometric, ex situ generated 12 C, or 13 C carbon monoxide. This reaction is characterized by its broad scope, functional group tolerance, and high yields, which is showcased with the synthesis of structurally complex molecules. A complementary method that operates by the catalytic in situ generation of CO via the reduction of CO2 liberated during decarboxylation has also been developed as a proof-of-concept approach that CO2 -derived compounds can be converted to CO-containing frameworks. Mechanistic studies provide insight into the catalytic steps which highlight the impact of ligand choice to overcome challenges associated with low-pressure carbonylation methodologies, along with rational for the development of future methodologies.
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Affiliation(s)
- Craig S Day
- Carbon Dioxide Activation Center (CADIAC), The Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000, Aarhus, Denmark
| | - Stephanie J Ton
- Carbon Dioxide Activation Center (CADIAC), The Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000, Aarhus, Denmark
| | - Clemens Kaussler
- Carbon Dioxide Activation Center (CADIAC), The Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000, Aarhus, Denmark
| | - Daniel Vrønning Hoffmann
- Carbon Dioxide Activation Center (CADIAC), The Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000, Aarhus, Denmark
| | - Troels Skrydstrup
- Carbon Dioxide Activation Center (CADIAC), The Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000, Aarhus, Denmark
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9
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Monticelli S, Talbot A, Gotico P, Caillé F, Loreau O, Del Vecchio A, Malandain A, Sallustrau A, Leibl W, Aukauloo A, Taran F, Halime Z, Audisio D. Unlocking full and fast conversion in photocatalytic carbon dioxide reduction for applications in radio-carbonylation. Nat Commun 2023; 14:4451. [PMID: 37488106 PMCID: PMC10366225 DOI: 10.1038/s41467-023-40136-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 07/11/2023] [Indexed: 07/26/2023] Open
Abstract
Harvesting sunlight to drive carbon dioxide (CO2) valorisation represents an ideal concept to support a sustainable and carbon-neutral economy. While the photochemical reduction of CO2 to carbon monoxide (CO) has emerged as a hot research topic, the full CO2-to-CO conversion remains an often-overlooked criterion that prevents a productive and direct valorisation of CO into high-value-added chemicals. Herein, we report a photocatalytic process that unlocks full and fast CO2-to-CO conversion (<10 min) and its straightforward valorisation into human health related field of radiochemistry with carbon isotopes. Guided by reaction-model-based kinetic simulations to rationalize reaction optimisations, this manifold opens new opportunities for the direct access to 11C- and 14C-labeled pharmaceuticals from their primary isotopic sources [11C]CO2 and [14C]CO2.
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Affiliation(s)
- Serena Monticelli
- Université Paris-Saclay, CEA, Service de Chimie Bio-organique et Marquage, DMTS, F-91191, Gif-sur-Yvette, France
| | - Alex Talbot
- Université Paris-Saclay, CEA, Service de Chimie Bio-organique et Marquage, DMTS, F-91191, Gif-sur-Yvette, France
| | - Philipp Gotico
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell, F-91191, Gif-sur-Yvette, France
| | - Fabien Caillé
- Université Paris-Saclay, Inserm, CNRS, CEA, Laboratoire d'Imagerie Biomédicale Multimodale Paris-Saclay (BioMaps), F-91401, Orsay, France
| | - Olivier Loreau
- Université Paris-Saclay, CEA, Service de Chimie Bio-organique et Marquage, DMTS, F-91191, Gif-sur-Yvette, France
| | - Antonio Del Vecchio
- Université Paris-Saclay, CEA, Service de Chimie Bio-organique et Marquage, DMTS, F-91191, Gif-sur-Yvette, France
| | - Augustin Malandain
- Université Paris-Saclay, CEA, Service de Chimie Bio-organique et Marquage, DMTS, F-91191, Gif-sur-Yvette, France
| | - Antoine Sallustrau
- Université Paris-Saclay, CEA, Service de Chimie Bio-organique et Marquage, DMTS, F-91191, Gif-sur-Yvette, France
| | - Winfried Leibl
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell, F-91191, Gif-sur-Yvette, France
| | - Ally Aukauloo
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell, F-91191, Gif-sur-Yvette, France
- Université Paris-Saclay, CNRS, Institut de chimie moléculaire et des matériaux d'Orsay, F-91400,, Orsay, France
| | - Frédéric Taran
- Université Paris-Saclay, CEA, Service de Chimie Bio-organique et Marquage, DMTS, F-91191, Gif-sur-Yvette, France
| | - Zakaria Halime
- Université Paris-Saclay, CNRS, Institut de chimie moléculaire et des matériaux d'Orsay, F-91400,, Orsay, France.
| | - Davide Audisio
- Université Paris-Saclay, CEA, Service de Chimie Bio-organique et Marquage, DMTS, F-91191, Gif-sur-Yvette, France.
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10
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Wang S, Larrosa I, Yorimitsu H, Perry GJP. Carboxylic Acid Salts as Dual-Function Reagents for Carboxylation and Carbon Isotope Labeling. Angew Chem Int Ed Engl 2023; 62:e202218371. [PMID: 36746757 DOI: 10.1002/anie.202218371] [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: 12/12/2022] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 02/08/2023]
Abstract
The potassium salts of carboxylic acids are developed as efficient carboxylating agents through CO2 exchange. We describe these carboxylates as dual-function reagents because they function as a combined source of CO2 and base/metalating agent. By using the salt of a commercially available carboxylic acid, this protocol overcomes difficulties when using CO2 gas or organometallic reagents, such as pressurized containers or strictly inert conditions. The reaction proceeds under mild conditions, does not require transition metals or other additives, and shows broad substrate scope. Through the preparation of several biologically important molecules, we show how this strategy provides an opportunity for isotope labeling with low equivalents of labeled CO2 .
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Affiliation(s)
- Shuo Wang
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Igor Larrosa
- Department of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Gregory J P Perry
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan.,Future correspondence: School of Chemistry, University of Southampton, Southampton, SO17 1BJ, UK
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11
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Bsharat O, Doyle MGJ, Munch M, Mair BA, Cooze CJC, Derdau V, Bauer A, Kong D, Rotstein BH, Lundgren RJ. Aldehyde-catalysed carboxylate exchange in α-amino acids with isotopically labelled CO 2. Nat Chem 2022; 14:1367-1374. [PMID: 36344821 DOI: 10.1038/s41557-022-01074-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 09/23/2022] [Indexed: 11/09/2022]
Abstract
The isotopic labelling of small molecules is integral to drug development and for understanding biochemical processes. The preparation of carbon-labelled α-amino acids remains difficult and time consuming, with established methods involving label incorporation at an early stage of synthesis. This explains the high cost and scarcity of C-labelled products and presents a major challenge in 11C applications (11C t1/2 = 20 min). Here we report that aldehydes catalyse the isotopic carboxylate exchange of native α-amino acids with *CO2 (* = 14, 13, 11). Proteinogenic α-amino acids and many non-natural variants containing diverse functional groups undergo labelling. The reaction probably proceeds via the trapping of *CO2 by imine-carboxylate intermediates to generate iminomalonates that are prone to monodecarboxylation. Tempering catalyst electrophilicity was key to preventing irreversible aldehyde consumption. The pre-generation of the imine carboxylate intermediate allows for the rapid and late-stage 11C-radiolabelling of α-amino acids in the presence of [11C]CO2.
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Affiliation(s)
- Odey Bsharat
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Michael G J Doyle
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Maxime Munch
- Department of Biochemistry, Microbiology and Immunology and Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Braeden A Mair
- Department of Biochemistry, Microbiology and Immunology and Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | | | - Volker Derdau
- Sanofi-Aventis Deutschland GmbH, R&D, Integrated Drug Discovery, Isotope Chemistry, Industriepark Höchst, Frankfurt, Germany
| | - Armin Bauer
- Sanofi-Aventis Deutschland GmbH, R&D, Integrated Drug Discovery, Isotope Chemistry, Industriepark Höchst, Frankfurt, Germany
| | - Duanyang Kong
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Benjamin H Rotstein
- Department of Biochemistry, Microbiology and Immunology and Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada.
- University of Ottawa Heart Institute, Ottawa, Ontario, Canada.
| | - Rylan J Lundgren
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada.
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12
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Neumann KT, Skrydstrup T. Enriched amino acids. Nat Chem 2022; 14:1339-1340. [PMID: 36344819 DOI: 10.1038/s41557-022-01089-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Karoline T Neumann
- Department of Chemistry and Interdisciplinary Nanoscience Center at Aarhus University, Aarhus C, Denmark.
| | - Troels Skrydstrup
- Department of Chemistry and Interdisciplinary Nanoscience Center at Aarhus University, Aarhus C, Denmark
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13
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Abstract
The right solvent mix breaks down perfluorinated organic acids.
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Affiliation(s)
- Shira Joudan
- Department of Chemistry, York University, Toronto, Ontario, Canada
| | - Rylan J Lundgren
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
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14
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Shigeno M, Tohara I, Sasaki K, Nozawa-Kumada K, Kondo Y. Combined Brønsted Base-Promoted CO 2 Fixation into Benzylic C-H Bonds of Alkylarenes. Org Lett 2022; 24:4825-4830. [PMID: 35763616 DOI: 10.1021/acs.orglett.2c01986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Interest in developing methods for direct CO2 fixation into readily available unfunctionalized C-H bonds in organic substances has recently surged. In contrast to the well-studied carboxylations of alkynyl C(sp)-H and aromatic C(sp2)-H bonds, carboxylation of benzylic C(sp3)-H bonds to produce 2-arylacetic acids is limited to photoirradiation reactions and continues to be a challenging issue because of the low chemical reactivity. We herein describe that a combined Brønsted base (i.e., LiO-t-Bu/CsF and LiOCEt3/CsF) achieves benzylic carboxylation of electron-deficient, -neutral, and -rich alkylarenes and enables various functionalities, including fragile ones such as bromide, alkene, alkyne, and carbonyl moieties. Dicarboxylation at the benzylic position is also established. Cs-alkoxide generated in situ acts as a reactive base, as demonstrated in experiments with independently prepared CsO-t-Bu and by 133Cs nuclear magnetic resonance studies.
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Affiliation(s)
- Masanori Shigeno
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Itsuki Tohara
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Keita Sasaki
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Kanako Nozawa-Kumada
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Yoshinori Kondo
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
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15
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Babin V, Taran F, Audisio D. Late-Stage Carbon-14 Labeling and Isotope Exchange: Emerging Opportunities and Future Challenges. JACS AU 2022; 2:1234-1251. [PMID: 35783167 PMCID: PMC9241029 DOI: 10.1021/jacsau.2c00030] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/01/2022] [Accepted: 03/02/2022] [Indexed: 05/04/2023]
Abstract
Carbon-14 (14C) is a gold standard technology routinely utilized in pharmaceutical and agrochemical industries for tracking synthetic organic molecules and providing their metabolic and safety profiles. While the state of the art has been dominated for decades by traditional multistep synthetic approaches, the recent emergence of late-stage carbon isotope labeling has provided new avenues to rapidly access carbon-14-labeled biologically relevant compounds. In particular, the development of carbon isotope exchange has represented a fundamental paradigm change, opening the way to unexplored synthetic transformations. In this Perspective, we discuss the recent developments in the field with a critical assessment of the literature. We subsequently discuss research directions and future challenges within this rapidly evolving field.
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16
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Mao B, Wei JS, Shi M. Recent advancements in visible-light-driven carboxylation with carbon dioxide. Chem Commun (Camb) 2022; 58:9312-9327. [DOI: 10.1039/d2cc03380a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbon dioxide as a classic C1 source has long been investigated in organic synthetic chemistry. Diverse catalytic methods for CO2 activation were reported in the past several decades. In this...
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17
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Xing W, Wang J, Fu M, Fu Y. Efficient Decarboxylative/Defluorinative Alkylation for the Synthesis of
gem
‐Difluoroalkenes
through an
S
N
2
’‐Type Route. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100709] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Wei‐Long Xing
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China Hefei Anhui 230026 China
| | - Jia‐Xin Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China Hefei Anhui 230026 China
| | - Ming‐Chen Fu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China Hefei Anhui 230026 China
| | - Yao Fu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China Hefei Anhui 230026 China
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18
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Franceschi P, Nicoletti C, Bonetto R, Bonchio M, Natali M, Dell'Amico L, Sartorel A. Basicity as a Thermodynamic Descriptor of Carbanions Reactivity with Carbon Dioxide: Application to the Carboxylation of α,β-Unsaturated Ketones. Front Chem 2021; 9:783993. [PMID: 34900942 PMCID: PMC8652261 DOI: 10.3389/fchem.2021.783993] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 10/28/2021] [Indexed: 12/24/2022] Open
Abstract
The utilization of carbon dioxide as a raw material represents nowadays an appealing strategy in the renewable energy, organic synthesis, and green chemistry fields. Besides reduction strategies, carbon dioxide can be exploited as a single-carbon-atom building block through its fixation into organic scaffolds with the formation of new C-C bonds (carboxylation processes). In this case, activation of the organic substrate is commonly required, upon formation of a carbanion C-, being sufficiently reactive toward the addition of CO2. However, the prediction of the reactivity of C- with CO2 is often problematic with the process being possibly associated with unfavorable thermodynamics. In this contribution, we present a thermodynamic analysis combined with density functional theory calculations on 50 organic molecules enabling the achievement of a linear correlation of the standard free energy (ΔG0) of the carboxylation reaction with the basicity of the carbanion C-, expressed as the pKa of the CH/C- couple. The analysis identifies a threshold pKa of ca 36 (in CH3CN) for the CH/C- couple, above which the ΔG0 of the carboxylation reaction is negative and indicative of a favorable process. We then apply the model to a real case involving electrochemical carboxylation of flavone and chalcone as model compounds of α,β-unsaturated ketones. Carboxylation occurs in the β-position from the doubly reduced dianion intermediates of flavone and chalcone (calculated ΔG0 of carboxylation in β = -12.8 and -20.0 Kcalmol-1 for flavone and chalcone, respectively, associated with pKa values for the conjugate acids of 50.6 and 51.8, respectively). Conversely, the one-electron reduced radical anions are not reactive toward carboxylation (ΔG0 > +20 Kcalmol-1 for both substrates, in either α or β position, consistent with pKa of the conjugate acids < 18.5). For all the possible intermediates, the plot of calculated ΔG0 of carboxylation vs. pKa is consistent with the linear correlation model developed. The application of the ΔG0 vs. pKa correlation is finally discussed for alternative reaction mechanisms and for carboxylation of other C=C and C=O double bonds. These results offer a new mechanistic tool for the interpretation of the reactivity of CO2 with organic intermediates.
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Affiliation(s)
- Pietro Franceschi
- Nano and Molecular Catalysis Laboratory, Department of Chemical Sciences, University of Padova, Padova, Italy
| | - Catia Nicoletti
- Nano and Molecular Catalysis Laboratory, Department of Chemical Sciences, University of Padova, Padova, Italy
| | - Ruggero Bonetto
- Nano and Molecular Catalysis Laboratory, Department of Chemical Sciences, University of Padova, Padova, Italy
| | - Marcella Bonchio
- Nano and Molecular Catalysis Laboratory, Department of Chemical Sciences, University of Padova, Padova, Italy
| | - Mirco Natali
- Department of Chemical, Pharmaceutical and Agricultural Sciences (DOCPAS), University of Ferrara, and Centro Interuniversitario per La Conversione Chimica Dell'Energia Solare (SOLARCHEM), Ferrara, Italy
| | - Luca Dell'Amico
- Nano and Molecular Catalysis Laboratory, Department of Chemical Sciences, University of Padova, Padova, Italy
| | - Andrea Sartorel
- Nano and Molecular Catalysis Laboratory, Department of Chemical Sciences, University of Padova, Padova, Italy
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19
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Davies J, Lyonnet JR, Zimin DP, Martin R. The road to industrialization of fine chemical carboxylation reactions. Chem 2021. [DOI: 10.1016/j.chempr.2021.10.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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20
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Ton SJ, Neumann KT, Nørby P, Skrydstrup T. Nickel-Mediated Alkoxycarbonylation for Complete Carbon Isotope Replacement. J Am Chem Soc 2021; 143:17816-17824. [PMID: 34643376 DOI: 10.1021/jacs.1c09170] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Many commercial drugs, as well as upcoming pharmaceutically active compounds in the pipeline, display aliphatic carboxylic acids or derivatives thereof as key structural entities. Synthetic methods for rapidly accessing isotopologues of such compounds are highly relevant for undertaking critical pharmacological studies. In this paper, we disclose a direct synthetic route allowing for full carbon isotope replacement via a nickel-mediated alkoxycarbonylation. Employing a nickelII pincer complex ([(N2N)Ni-Cl]) in combination with carbon-13 labeled CO, alkyl iodide, sodium methoxide, photocatalyst, and blue LED light, it was possible to generate the corresponding isotopically labeled aliphatic carboxylates in good yields. Furthermore, the developed methodology was applied to the carbon isotope substitution of several pharmaceutically active compounds, whereby complete carbon-13 labeling was successfully accomplished. It was initially proposed that the carboxylation step would proceed via the in situ formation of a nickellacarboxylate, generated by CO insertion into the Ni-alkoxide bond. However, preliminary mechanistic investigations suggest an alternative pathway involving attack of an open shell species generated from the alkyl halide to a metal ligated CO to generate an acyl NiIII species. Subsequent reductive elimination involving the alkoxide eventually leads to carboxylate formation. An excess of the alkoxide was essential for obtaining a high yield of the product. In general, the presented methodology provides a simple and convenient setup for the synthesis and carbon isotope labeling of aliphatic carboxylates, while providing new insights about the reactivity of the N2N nickel pincer complex applied.
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Affiliation(s)
- Stephanie J Ton
- Carbon Dioxide Activation Center (CADIAC), The Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus, Denmark
| | - Karoline T Neumann
- Carbon Dioxide Activation Center (CADIAC), The Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus, Denmark
| | - Peter Nørby
- Center for Materials Crystallography, Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
| | - Troels Skrydstrup
- Carbon Dioxide Activation Center (CADIAC), The Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus, Denmark
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21
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Alektiar SN, Wickens ZK. Photoinduced Hydrocarboxylation via Thiol-Catalyzed Delivery of Formate Across Activated Alkenes. J Am Chem Soc 2021; 143:13022-13028. [PMID: 34380308 DOI: 10.1021/jacs.1c07562] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Herein we disclose a new photochemical process to prepare carboxylic acids from formate salts and alkenes. This redox-neutral hydrocarboxylation proceeds in high yields across diverse functionalized alkene substrates with excellent regioselectivity. This operationally simple procedure can be readily scaled in batch at low photocatalyst loading (0.01% photocatalyst). Furthermore, this new reaction can leverage commercially available formate carbon isotologues to enable the direct synthesis of isotopically labeled carboxylic acids. Mechanistic studies support the working model involving a thiol-catalyzed radical chain process wherein the atoms from formate are delivered across the alkene substrate via CO2•- as a key reactive intermediate.
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Affiliation(s)
- Sara N Alektiar
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Zachary K Wickens
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
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22
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Lasso JD, Castillo-Pazos DJ, Li CJ. Green chemistry meets medicinal chemistry: a perspective on modern metal-free late-stage functionalization reactions. Chem Soc Rev 2021; 50:10955-10982. [PMID: 34382989 DOI: 10.1039/d1cs00380a] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The progress of drug discovery and development is paced by milestones reached in organic synthesis. In the last decade, the advent of late-stage functionalization (LSF) reactions has represented a valuable breakthrough. Recent literature has defined these reactions as the chemoselective modification of complex molecules by means of C-H functionalization or the manipulation of endogenous functional groups. Traditionally, these diversifications have been accomplished by organometallic means. However, the presence of metals carries disadvantages related to their cost, environmental hazard and health risks. Fundamentally, green chemistry directives can help minimize such hazards through the development of metal-free LSF methodologies. In this review, we expand the current discussion on metal-free LSF reactions by providing an overview of C(sp2)-H, and C(sp3)-H functionalizations, as well as the utilization of heteroatom-containing functional groups as chemical handles. Selected topics such as metal-free cross-dehydrogenative coupling (CDC) reactions, organocatalysis, electrochemistry and photochemistry are also discussed. By writing the first review on metal-free LSF methodologies, we aim to highlight current advances in the field with examples that reveal specific challenges and solutions, as well as future research opportunities.
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Affiliation(s)
- Juan D Lasso
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 0B8, Canada.
| | - Durbis J Castillo-Pazos
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 0B8, Canada.
| | - Chao-Jun Li
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke St. W., Montreal, Quebec H3A 0B8, Canada.
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23
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Audisio D, Talbot A, Sallustrau A, Goudet A, Taran F. Investigation on the Stoichiometry of Carbon Dioxide in Isotope-Exchange Reactions with Phenylacetic Acids. Synlett 2021. [DOI: 10.1055/s-0040-1720447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractThe functionalization of carbon dioxide (CO2) as a C1 building block has attracted enormous attention. Carboxylation reactions, in particular, are of major interest for applications in isotope labeling. Due to the inexpensive nature of CO2, information about its stoichiometric use is generally unavailable in the literature. Because of the rarity and limited availability of CO2 isotopomers, this parameter is of concern for applications in carbon-isotope labeling. We investigated the effects of the stoichiometry of labeled CO2 on carbon isotope exchange of phenylacetic acids. Both thermal and photocatalytic procedures were studied, providing insight into product outcome and isotope incorporation. Preliminary results on isotope-dilution effects of carbonate bases in photocatalytic carboxylation reactions have also been obtained.
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24
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Feng M, De Oliveira J, Sallustrau A, Destro G, Thuéry P, Roy S, Cantat T, Elmore CS, Blankenstein J, Taran F, Audisio D. Direct Carbon Isotope Exchange of Pharmaceuticals via Reversible Decyanation. J Am Chem Soc 2021; 143:5659-5665. [PMID: 33825486 DOI: 10.1021/jacs.1c01923] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The incorporation of carbon-14 allows tracking of organic molecules and provides vital knowledge on their fate. This information is critical in pharmaceutical development, crop science, and human food safety evaluation. Herein, a transition-metal-catalyzed procedure enabling carbon isotope exchange on aromatic nitriles is described. By utilizing the radiolabeled precursor Zn([14C]CN)2, this protocol allows the insertion of the desired carbon tag without the need for structural modifications, in a single step. By reducing synthetic costs and limiting the generation of radioactive waste, this procedure will facilitate the labeling of nitrile containing drugs and accelerate 14C-based ADME studies supporting drug development.
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Affiliation(s)
- Minghao Feng
- Université Paris Saclay, CEA, DMTS, Service de Chimie Bio-organique et Marquage, 91191 Gif-sur-Yvette, France
| | - Joao De Oliveira
- Université Paris Saclay, CEA, DMTS, Service de Chimie Bio-organique et Marquage, 91191 Gif-sur-Yvette, France.,Isotope Chemistry, Integrated Drug Discovery Sanofi R&D, 94403 Vitry-sur-Seine, France
| | - Antoine Sallustrau
- Université Paris Saclay, CEA, DMTS, Service de Chimie Bio-organique et Marquage, 91191 Gif-sur-Yvette, France
| | - Gianluca Destro
- Université Paris Saclay, CEA, DMTS, Service de Chimie Bio-organique et Marquage, 91191 Gif-sur-Yvette, France.,Université Paris Saclay, CEA, CNRS, NIMBE, 91191 Gif-sur-Yvette, France
| | - Pierre Thuéry
- Université Paris Saclay, CEA, CNRS, NIMBE, 91191 Gif-sur-Yvette, France
| | - Sebastien Roy
- Isotope Chemistry, Integrated Drug Discovery Sanofi R&D, 94403 Vitry-sur-Seine, France
| | - Thibault Cantat
- Université Paris Saclay, CEA, CNRS, NIMBE, 91191 Gif-sur-Yvette, France
| | - Charles S Elmore
- Isotope Chemistry, Pharmaceutical Science, R&D, AstraZeneca, 43183 Gothenburg, Sweden
| | - Jorg Blankenstein
- Isotope Chemistry, Integrated Drug Discovery Sanofi R&D, 94403 Vitry-sur-Seine, France
| | - Frédéric Taran
- Université Paris Saclay, CEA, DMTS, Service de Chimie Bio-organique et Marquage, 91191 Gif-sur-Yvette, France
| | - Davide Audisio
- Université Paris Saclay, CEA, DMTS, Service de Chimie Bio-organique et Marquage, 91191 Gif-sur-Yvette, France
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25
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Reilly SW, Lam YH, Ren S, Strotman NA. Late-Stage Carbon Isotope Exchange of Aryl Nitriles through Ni-Catalyzed C-CN Bond Activation. J Am Chem Soc 2021; 143:4817-4823. [PMID: 33725443 DOI: 10.1021/jacs.1c01454] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A facile one-pot strategy for 13CN and 14CN exchange with aryl, heteroaryl, and alkenyl nitriles using a Ni phosphine catalyst and BPh3 is described. This late-stage carbon isotope exchange (CIE) strategy employs labeled Zn(CN)2 to facilitate enrichment using the nonlabeled parent compound as the starting material, eliminating de novo synthesis for precursor development. A broad substrate scope encompassing multiple pharmaceuticals is disclosed, including the preparation of [14C] belzutifan to illustrate the exceptional functional group tolerance and utility of this labeling approach. Preliminary experimental and computational studies suggest the Lewis acid BPh3 is not critical for the oxidative addition step and instead plays a role in facilitating CN exchange on Ni. This CIE method dramatically reduces the synthetic steps and radioactive waste involved in preparation of 14C labeled tracers for clinical development.
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Affiliation(s)
- Sean W Reilly
- Department of Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Yu-Hong Lam
- Department of Computational and Structural Chemistry, Merck & Co., Inc. Rahway, New Jersey 07065, United States
| | - Sumei Ren
- Department of Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Neil A Strotman
- Department of Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
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26
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Doyle MGJ, Lundgren RJ. Oxidative cross-coupling processes inspired by the Chan-Lam reaction. Chem Commun (Camb) 2021; 57:2724-2731. [PMID: 33623942 DOI: 10.1039/d1cc00213a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The Cu-catalyzed oxidative cross-coupling of N- and O-nucleophiles with aryl boronic acids (the Chan-Lam reaction) remains among the most useful approaches to prepare aniline and phenol derivatives. The combination of high chemoselectivity, mild reaction conditions, and the ability to use simple Cu-salts as catalysts makes this process a valuable alternative to aromatic substitutions and Pd-catalyzed reactions of aryl electrophiles (Buchwald-Hartwig coupling). Despite the widespread use of Chan-Lam reactions in synthesis, the analogous carbon-carbon bond forming variant of this process had not been developed prior to our work. This feature article describes our discovery and application of Cu-catalyzed oxidative coupling reactions of activated methylene derivatives or carboxylic acids with nucleophiles including aryl boronic esters and amines.
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Affiliation(s)
- Michael G J Doyle
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada.
| | - Rylan J Lundgren
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada.
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27
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Zhou S, Wang Y, Gao J. Solvation Induction of Free Energy Barriers of Decarboxylation Reactions in Aqueous Solution from Dual-Level QM/MM Simulations. JACS AU 2021; 1:233-244. [PMID: 34467287 PMCID: PMC8395672 DOI: 10.1021/jacsau.0c00110] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Indexed: 06/13/2023]
Abstract
Carbon dioxide capture, corresponding to the recombination process of decarboxylation reactions of organic acids, is typically barrierless in the gas phase and has a relatively low barrier in aprotic solvents. However, these processes often encounter significant solvent-reorganization-induced barriers in aqueous solution if the decarboxylation product is not immediately protonated. Both the intrinsic stereoelectronic effects and solute-solvent interactions play critical roles in determining the overall decarboxylation equilibrium and free energy barrier. An understanding of the interplay of these factors is important for designing novel materials applied to greenhouse gas capture and storage as well as for unraveling the catalytic mechanisms of a range of carboxy lyases in biological CO2 production. A range of decarboxylation reactions of organic acids with rates spanning nearly 30 orders of magnitude have been examined through dual-level combined quantum mechanical and molecular mechanical simulations to help elucidate the origin of solvation-induced free energy barriers for decarboxylation and the reverse carboxylation reactions in water.
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Affiliation(s)
- Shaoyuan Zhou
- Institute
of Theoretical Chemistry, Jilin University, Changchun 130023, China
- Institute
of Systems and Physical Biology, Shenzhen
Bay Laboratory, Shenzhen 518055, China
| | - Yingjie Wang
- Institute
of Systems and Physical Biology, Shenzhen
Bay Laboratory, Shenzhen 518055, China
| | - Jiali Gao
- Institute
of Systems and Physical Biology, Shenzhen
Bay Laboratory, Shenzhen 518055, China
- Beijing
University Shenzhen Graduate School, Shenzhen 518055, China
- Department
of Chemistry and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
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28
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Babin V, Talbot A, Labiche A, Destro G, Del Vecchio A, Elmore CS, Taran F, Sallustrau A, Audisio D. Photochemical Strategy for Carbon Isotope Exchange with CO2. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05344] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Victor Babin
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT, Université Paris Saclay, F-91191 Gif-sur-Yvette, France
| | - Alex Talbot
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT, Université Paris Saclay, F-91191 Gif-sur-Yvette, France
| | - Alexandre Labiche
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT, Université Paris Saclay, F-91191 Gif-sur-Yvette, France
| | - Gianluca Destro
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT, Université Paris Saclay, F-91191 Gif-sur-Yvette, France
| | - Antonio Del Vecchio
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT, Université Paris Saclay, F-91191 Gif-sur-Yvette, France
| | - Charles S. Elmore
- Isotope Chemistry, Pharmaceutical Science, R&D, AstraZeneca, 43183 Gothenburg, Sweden
| | - Frédéric Taran
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT, Université Paris Saclay, F-91191 Gif-sur-Yvette, France
| | - Antoine Sallustrau
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT, Université Paris Saclay, F-91191 Gif-sur-Yvette, France
| | - Davide Audisio
- Service de Chimie Bio-organique et Marquage (SCBM), CEA/DRF/JOLIOT, Université Paris Saclay, F-91191 Gif-sur-Yvette, France
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29
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Kong D, Munch M, Qiqige Q, Cooze CJC, Rotstein BH, Lundgren RJ. Fast Carbon Isotope Exchange of Carboxylic Acids Enabled by Organic Photoredox Catalysis. J Am Chem Soc 2021; 143:2200-2206. [PMID: 33507731 DOI: 10.1021/jacs.0c12819] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Carbazole/cyanobenzene photocatalysts promote the direct isotopic carboxylate exchange of C(sp3) acids with labeled CO2. Substrates that are not compatible with transition-metal-catalyzed degradation-reconstruction approaches or prone to thermally induced reversible decarboxylation undergo isotopic incorporation at room temperature in short reaction times. The radiolabeling of drug molecules and precursors with [11C]CO2 is demonstrated.
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Affiliation(s)
- Duanyang Kong
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Maxime Munch
- Department of Biochemistry, Microbiology and Immunology and Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada.,University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
| | - Qiqige Qiqige
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | | | - Benjamin H Rotstein
- Department of Biochemistry, Microbiology and Immunology and Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada.,University of Ottawa Heart Institute, Ottawa, Ontario K1Y 4W7, Canada
| | - Rylan J Lundgren
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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30
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Zhou S, Nguyen BT, Richard JP, Kluger R, Gao J. Origin of Free Energy Barriers of Decarboxylation and the Reverse Process of CO 2 Capture in Dimethylformamide and in Water. J Am Chem Soc 2021; 143:137-141. [PMID: 33375792 DOI: 10.1021/jacs.0c12414] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In aqueous solution, biological decarboxylation reactions proceed irreversibly to completion, whereas the reverse carboxylation processes are typically powered by the hydrolysis of ATP. The exchange of the carboxylate of ring-substituted arylacetates with isotope-labeled CO2 in polar aprotic solvents reported recently suggests a dramatic change in the partition of reaction pathways. Yet, there is little experimental data pertinent to the kinetic barriers for protonation and thermodynamic data on CO2 capture by the carbanions of decarboxylation reactions. Employing a combined quantum mechanical and molecular mechanical simulation approach, we investigated the decarboxylation reactions of a series of organic carboxylate compounds in aqueous and in dimethylformamide solutions, revealing that the reverse carboxylation barriers in solution are fully induced by solvent effects. A linear Bell-Evans-Polanyi relationship was found between the rates of decarboxylation and the Gibbs energies of reaction, indicating diminishing recombination barriers in DMF. In contrast, protonation of the carbanions by the DMF solvent has large free energy barriers, rendering the competing exchange of isotope-labeled CO2 reversible in DMF. The finding of an intricate interplay of carbanion stability and solute-solvent interaction in decarboxylation and carboxylation could be useful to designing novel materials for CO2 capture.
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Affiliation(s)
- Shaoyuan Zhou
- Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen 581055, China.,Institute of Theoretical Chemistry, Jilin University, Changchun 100231, China
| | - Bach T Nguyen
- Department of Chemistry and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - John P Richard
- Department of Chemistry, State University of New York at Buffalo, Buffalo, New York 47907, United States
| | - Ronald Kluger
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Jiali Gao
- Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen 581055, China.,Department of Chemistry and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
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31
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Xing WL, Liu DG, Fu MC. Transition-metal-free decarboxylative thiolation of stable aliphatic carboxylates. RSC Adv 2021; 11:4593-4597. [PMID: 35424417 PMCID: PMC8694499 DOI: 10.1039/d1ra00063b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 01/15/2021] [Indexed: 11/21/2022] Open
Abstract
A transition-metal-free decarboxylative thiolation protocol is reported in which (hetero)aryl acetates and α-CN substituted acetates undergo smoothly, to deliver a variety of functionalized aryl alkyl sulfides in moderate to excellent yields.
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Affiliation(s)
- Wei-Long Xing
- Department of Chemistry
- University of Science and Technology of China
- Hefei 230026
- China
| | - De-Guang Liu
- Department of Chemistry
- University of Science and Technology of China
- Hefei 230026
- China
| | - Ming-Chen Fu
- Department of Chemistry
- University of Science and Technology of China
- Hefei 230026
- China
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32
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Ren S, Huffman MA, Whittaker AM, Yang H, Nawrat CC, Waterhouse DJ, Maloney KM, Strotman NA. Synthesis of Isotopically Labeled Anti-HIV Nucleoside Islatravir through a One-Pot Biocatalytic Cascade Reaction. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.0c00476] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sumei Ren
- Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Mark A. Huffman
- Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Aaron M. Whittaker
- Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Hao Yang
- Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Christopher C. Nawrat
- Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - David J. Waterhouse
- Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Kevin M. Maloney
- Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Neil A. Strotman
- Process Research and Development, Merck & Co., Inc., Rahway, New Jersey 07065, United States
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33
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Cha L, Chang WC. An Effective Strategy to Introduce Carbon Isotopes by Simple Swaps of CO2. TRENDS IN CHEMISTRY 2020. [DOI: 10.1016/j.trechm.2020.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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34
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Kong D, Moon PJ, Lui EKJ, Bsharat O, Lundgren RJ. Direct reversible decarboxylation from stable organic acids in dimethylformamide solution. Science 2020; 369:557-561. [PMID: 32554626 DOI: 10.1126/science.abb4129] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 06/09/2020] [Indexed: 12/14/2022]
Abstract
Many classical and emerging methodologies in organic chemistry rely on carbon dioxide (CO2) extrusion to generate reactive intermediates for bond-forming events. Synthetic reactions that involve the microscopic reverse-the carboxylation of reactive intermediates-have conventionally been undertaken using very different conditions. We report that chemically stable C(sp3) carboxylates, such as arylacetic acids and malonate half-esters, undergo uncatalyzed reversible decarboxylation in dimethylformamide solution. Decarboxylation-carboxylation occurs with substrates resistant to protodecarboxylation by Brønsted acids under otherwise identical conditions. Isotopically labeled carboxylic acids can be prepared in high chemical and isotopic yield by simply supplying an atmosphere of 13CO2 to carboxylate salts in polar aprotic solvents. An understanding of carboxylate reactivity in solution enables conditions for the trapping of aldehydes, ketones, and α,β-unsaturated esters.
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Affiliation(s)
- Duanyang Kong
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Patrick J Moon
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Erica K J Lui
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Odey Bsharat
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Rylan J Lundgren
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada.
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35
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Destro G, Horkka K, Loreau O, Buisson DA, Kingston L, Del Vecchio A, Schou M, Elmore CS, Taran F, Cantat T, Audisio D. Transition-Metal-Free Carbon Isotope Exchange of Phenyl Acetic Acids. Angew Chem Int Ed Engl 2020; 59:13490-13495. [PMID: 32348625 PMCID: PMC7496475 DOI: 10.1002/anie.202002341] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/01/2020] [Indexed: 11/16/2022]
Abstract
A transition‐metal‐free carbon isotope exchange procedure on phenyl acetic acids is described. Utilizing the universal precursor CO2, this protocol allows the carbon isotope to be inserted into the carboxylic acid position, with no need of precursor synthesis. This procedure enabled the labeling of 15 pharmaceuticals and was compatible with carbon isotopes [14C] and [13C]. A proof of concept with [11C] was also obtained with low molar activity valuable for distribution studies.
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Affiliation(s)
- Gianluca Destro
- Université Paris-Saclay, CEA, Service de Chimie Bio-organique et de Marquage, 91191, Gif-sur-Yvette, France.,Université Paris-Saclay, CEA, CNRS, NIMBE, 91191, Gif-sur-Yvette, France
| | | | - Olivier Loreau
- Université Paris-Saclay, CEA, Service de Chimie Bio-organique et de Marquage, 91191, Gif-sur-Yvette, France
| | - David-Alexandre Buisson
- Université Paris-Saclay, CEA, Service de Chimie Bio-organique et de Marquage, 91191, Gif-sur-Yvette, France
| | - Lee Kingston
- Early Chemical Development, Pharmaceutical Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Antonio Del Vecchio
- Université Paris-Saclay, CEA, Service de Chimie Bio-organique et de Marquage, 91191, Gif-sur-Yvette, France
| | - Magnus Schou
- Karolinska Institutet, 17176, Stockholm, Sweden.,PET Science Centre, Precision Medicine, Oncology R&D, AstraZeneca, Karolinska Institutet, 17176, Stockholm, Sweden
| | - Charles S Elmore
- Early Chemical Development, Pharmaceutical Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Frédéric Taran
- Université Paris-Saclay, CEA, Service de Chimie Bio-organique et de Marquage, 91191, Gif-sur-Yvette, France
| | - Thibault Cantat
- Université Paris-Saclay, CEA, CNRS, NIMBE, 91191, Gif-sur-Yvette, France
| | - Davide Audisio
- Université Paris-Saclay, CEA, Service de Chimie Bio-organique et de Marquage, 91191, Gif-sur-Yvette, France
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