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Merino MR, Cook XAF, Blakemore DC, Moses IB, Sach NW, Shavnya A, Willis MC. Copper-Catalyzed Synthesis of Masked (Hetero)Aryl Sulfinates. Org Lett 2024; 26:2817-2820. [PMID: 38189248 PMCID: PMC11020165 DOI: 10.1021/acs.orglett.3c03621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 12/08/2023] [Accepted: 12/29/2023] [Indexed: 01/09/2024]
Abstract
Catalysis using substoichiometric copper facilitates the synthesis of masked (hetero)aryl sulfinates under mild, base-free conditions from aryl iodides and the commercial sulfonylation reagent sodium 1-methyl 3-sulfinopropanoate (SMOPS). The development of a tert-butyl ester variant of the SMOPS reagent allowed the use of aryl bromide substrates. The sulfones thus generated can be unmasked and functionalized in situ to form a variety of sulfonyl-containing functional groups.
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Affiliation(s)
- May R. Merino
- Department
of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield
Road, Oxford OX1 3TA, U.K.
| | - Xinlan A. F. Cook
- Department
of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield
Road, Oxford OX1 3TA, U.K.
| | - David C. Blakemore
- Medicine
Design, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Ian B. Moses
- Pharmaceutical
Sciences, Pfizer Inc., Discovery Park, Ramsgate Road, Kent CT13 9ND, U.K.
| | - Neal W. Sach
- Medicine
Design, La Jolla Laboratories, Pfizer Inc., 10777 Science Center Drive, San Diego, California 92121, United States
| | - Andre Shavnya
- Medicine
Design, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Michael C. Willis
- Department
of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield
Road, Oxford OX1 3TA, U.K.
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2
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Cook XAF, Pantaine LRE, Blakemore DC, Moses IB, Sach NW, Shavnya A, Willis MC. Base‐Activated Latent Heteroaromatic Sulfinates as Nucleophilic Coupling Partners in Palladium‐Catalyzed Cross‐Coupling Reactions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Xinlan A. F. Cook
- Department of Chemistry University of Oxford Chemistry Research Laboratory Mansfield Road Oxford OX1 3TA UK
| | - Loïc R. E. Pantaine
- Department of Chemistry University of Oxford Chemistry Research Laboratory Mansfield Road Oxford OX1 3TA UK
| | | | - Ian B. Moses
- Pharmaceutical sciences Pfizer Inc. Discovery Park, Ramsgate Road CT13 9ND UK
| | - Neal W. Sach
- Medicine Design, La Jolla Laboratories Pfizer Inc. 10777 Science Center Drive San Diego CA 92121 USA
| | - Andre Shavnya
- Medicine Design Pfizer Inc. Eastern Point Road Groton CT 06340 USA
| | - Michael C. Willis
- Department of Chemistry University of Oxford Chemistry Research Laboratory Mansfield Road Oxford OX1 3TA UK
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3
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Cook XAF, Pantaine LRE, Blakemore DC, Moses IB, Sach NW, Shavnya A, Willis MC. Base-Activated Latent Heteroaromatic Sulfinates as Nucleophilic Coupling Partners in Palladium-Catalyzed Cross-Coupling Reactions. Angew Chem Int Ed Engl 2021; 60:22461-22468. [PMID: 34342107 PMCID: PMC8518705 DOI: 10.1002/anie.202109146] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Indexed: 01/10/2023]
Abstract
Heteroaromatic sulfinates are effective nucleophilic reagents in Pd0 -catalyzed cross-coupling reactions with aryl halides. However, metal sulfinate salts can be challenging to purify, solubilize in reaction media, and are not tolerant to multi-step transformations. Here we introduce base-activated, latent sulfinate reagents: β-nitrile and β-ester sulfones. We show that under the cross-coupling conditions, these species generate the sulfinate salt in situ, which then undergo efficient palladium-catalyzed desulfinative cross-coupling with (hetero)aryl bromides to deliver a broad range of biaryls. These latent sulfinate reagents have proven to be stable through multi-step substrate elaboration, and amenable to scale-up.
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Affiliation(s)
- Xinlan A. F. Cook
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
| | - Loïc R. E. Pantaine
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
| | | | - Ian B. Moses
- Pharmaceutical sciencesPfizer Inc.Discovery Park, Ramsgate RoadCT13 9NDUK
| | - Neal W. Sach
- Medicine Design, La Jolla LaboratoriesPfizer Inc.10777 Science Center DriveSan DiegoCA92121USA
| | - Andre Shavnya
- Medicine DesignPfizer Inc.Eastern Point RoadGrotonCT06340USA
| | - Michael C. Willis
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryMansfield RoadOxfordOX1 3TAUK
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de Gombert A, McKay AI, Davis CJ, Wheelhouse KM, Willis MC. Mechanistic Studies of the Palladium-Catalyzed Desulfinative Cross-Coupling of Aryl Bromides and (Hetero)Aryl Sulfinate Salts. J Am Chem Soc 2020; 142:3564-3576. [PMID: 32031375 PMCID: PMC7146858 DOI: 10.1021/jacs.9b13260] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Indexed: 12/18/2022]
Abstract
Pyridine and related heterocyclic sulfinates have recently emerged as effective nucleophilic coupling partners in palladium-catalyzed cross-coupling reactions with (hetero)aryl halides. These sulfinate reagents are straightforward to prepare, stable to storage and coupling reaction conditions, and deliver efficient reactions, thus offering many advantages, compared to the corresponding boron-derived reagents. Despite the success of these reactions, there are only scant details of the reaction mechanism. In this study, we use structural and kinetic analysis to investigate the mechanism of these important coupling reactions in detail. We compare a pyridine-2-sulfinate with a carbocyclic sulfinate and establish different catalyst resting states, and turnover limiting steps, for the two classes of reagent. For the carbocyclic sulfinate, the aryl bromide oxidative addition complex is the resting state intermediate, and transmetalation is turnover-limiting. In contrast, for the pyridine sulfinate, a chelated Pd(II) sulfinate complex formed post-transmetalation is the resting-state intermediate, and loss of SO2 from this complex is turnover-limiting. We also investigated the role of the basic additive potassium carbonate, the use of which is crucial for efficient reactions, and deduced a dual function in which carbonate is responsible for the removal of free sulfur dioxide from the reaction medium, and the potassium cation plays a role in accelerating transmetalation. In addition, we show that sulfinate homocoupling is responsible for converting Pd(OAc)2 to a catalytically active Pd(0) complex. Together, these studies shed light on the challenges that must be overcome to deliver improved, lower temperature versions of these synthetically important processes.
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Affiliation(s)
- Antoine de Gombert
- Department
of Chemistry, Chemistry Research Laboratories, University of Oxford, Mansfield Road, Oxford OX1 4TA, United Kingdom
| | - Alasdair I. McKay
- Department
of Chemistry, Chemistry Research Laboratories, University of Oxford, Mansfield Road, Oxford OX1 4TA, United Kingdom
- School
of Chemistry, University of Melbourne, Parkville, VIC 3010, Australia
| | - Christopher J. Davis
- Vertex
Pharmaceuticals (Europe), Ltd., 86-88 Jubilee Avenue, Abingdon, Oxfordshire OX14 4RW, United Kingdom
| | - Katherine M. Wheelhouse
- Chemical
Development, GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, United Kingdom
| | - Michael C. Willis
- Department
of Chemistry, Chemistry Research Laboratories, University of Oxford, Mansfield Road, Oxford OX1 4TA, United Kingdom
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5
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Direct synthesis of 3-arylquinolines by a nano Pd-catalyzed regioselective C3-H arylation of quinolines. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151364] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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6
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Pedras MSC, Abdoli A, Sarma-Mamillapalle VK. Inhibitors of the Detoxifying Enzyme of the Phytoalexin Brassinin Based on Quinoline and Isoquinoline Scaffolds. Molecules 2017; 22:molecules22081345. [PMID: 28805743 PMCID: PMC6152025 DOI: 10.3390/molecules22081345] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 08/08/2017] [Indexed: 11/16/2022] Open
Abstract
The detoxification of the phytoalexin brassinin to indole-3-carboxaldehyde and S-methyl dithiocarbamate is catalyzed by brassinin oxidase (BOLm), an inducible fungal enzyme produced by the plant pathogen Leptosphaeria maculans. Twenty-six substituted quinolines and isoquinolines are synthesized and evaluated for antifungal activity against L. maculans and inhibition of BOLm. Eleven compounds that inhibit BOLm activity are reported, of which 3-ethyl-6-phenylquinoline displays the highest inhibitory effect. In general, substituted 3-phenylquinolines show significantly higher inhibitory activities than the corresponding 2-phenylquinolines. Overall, these results indicate that the quinoline scaffold is a good lead to design paldoxins (phytoalexin detoxification inhibitors) that inhibit the detoxification of brassinin by L. maculans.
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Affiliation(s)
- M Soledade C Pedras
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada.
| | - Abbas Abdoli
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada.
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Skillinghaug B, Rydfjord J, Sävmarker J, Larhed M. Microwave Heated Continuous Flow Palladium(II)-Catalyzed Desulfitative Synthesis of Aryl Ketones. Org Process Res Dev 2016. [DOI: 10.1021/acs.oprd.6b00306] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Bobo Skillinghaug
- Department
of Medicinal Chemistry, Division of Organic Pharmaceutical Chemistry,
Uppsala Biomedical Center, Uppsala University, P.O. Box 574, SE-751 23 Uppsala, Sweden
| | - Jonas Rydfjord
- Department
of Medicinal Chemistry, Division of Organic Pharmaceutical Chemistry,
Uppsala Biomedical Center, Uppsala University, P.O. Box 574, SE-751 23 Uppsala, Sweden
| | - Jonas Sävmarker
- The
Beijer Laboratory for Drug Discovery, Department of Medicinal Chemistry,
Uppsala Biomedical Center, Uppsala University, P.O. Box 574, SE-751 23 Uppsala, Sweden
| | - Mats Larhed
- Department
of Medicinal Chemistry, Science for Life Laboratory, Uppsala Biomedical
Center, Uppsala University, P.O. Box 574, SE-751 23 Uppsala, Sweden
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8
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Wang X, He Y, Ren M, Liu S, Liu H, Huang G. Pd-Catalyzed Ligand-Free Synthesis of Arylated Heteroaromatics by Coupling of N-Heteroaromatic Bromides with Iodobenzene Diacetate, Iodosobenzene, or Diphenyliodonium Salts. J Org Chem 2016; 81:7958-62. [PMID: 27458647 DOI: 10.1021/acs.joc.6b01103] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An efficient method for synthesizing arylated heteroaromatics has been reported via Pd-catalyzed ligand-free cross-coupling of N-heteroaromatic bromides with iodine(III) reagents under mild conditions. Iodobenzene diacetate, iodosobenzene, and diphenyliodonium salts act as ideal arylated sources in this reaction, producing bioactive aromatic-substituted pyridines and quinolines in moderate to high yields.
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Affiliation(s)
- Xiajun Wang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University , Lanzhou 730000, China
| | - Yongqin He
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University , Lanzhou 730000, China
| | - Mengdan Ren
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University , Lanzhou 730000, China
| | - Shengkang Liu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University , Lanzhou 730000, China
| | - He Liu
- Department of Chemistry, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Guosheng Huang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University , Lanzhou 730000, China
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9
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Gund SH, Balsane KE, Nagarkar JM. Palladium catalyzed desulfinylative couplings between aryl sulfinates and aryl bromide/iodide for the synthesis of biaryls. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.05.081] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Wang X, Wang X, Huang D, Liu C, Wang X, Hu Y. Synthesis of 3-Iodoquinolines by Copper-Catalyzed Tandem Annulation from Diaryliodoniums, Nitriles, and 1-Iodoalkynes. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600081] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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11
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Ortgies DH, Hassanpour A, Chen F, Woo S, Forgione P. Desulfination as an Emerging Strategy in Palladium-Catalyzed C-C Coupling Reactions. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501231] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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12
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Shi J, Tang XD, Wu YC, Li HN, Song LJ, Wang ZY. Palladium-Catalyzed Desulfitative Arylation of 5-Alkoxy-3,4-dibromo-2(5H)-furanone with Sodium Arylsulfinates. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403404] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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13
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Yuan K, Soulé JF, Doucet H. Functionalization of C–H Bonds via Metal-Catalyzed Desulfitative Coupling: An Alternative Tool for Access to Aryl- or Alkyl-Substituted (Hetero)arenes. ACS Catal 2015. [DOI: 10.1021/cs501686d] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Kedong Yuan
- Institut
Sciences Chimiques de Rennes,
UMR 6226 CNRS-Université de Rennes 1 “Catalyse et Organometalliques”, Campus de Beaulieu, 35042 Rennes, France
| | - Jean-François Soulé
- Institut
Sciences Chimiques de Rennes,
UMR 6226 CNRS-Université de Rennes 1 “Catalyse et Organometalliques”, Campus de Beaulieu, 35042 Rennes, France
| | - Henri Doucet
- Institut
Sciences Chimiques de Rennes,
UMR 6226 CNRS-Université de Rennes 1 “Catalyse et Organometalliques”, Campus de Beaulieu, 35042 Rennes, France
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Forgione P, Mangel D, Buonomano C, Sévigny S, Di Censo G, Thevendran G. Efficient Desulfinative Cross-Coupling of Heteroaromatic Sulfinates with Aryl Triflate in Environmentally Friendly Protic Solvents. HETEROCYCLES 2015. [DOI: 10.3987/com-14-s(k)104] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Skillinghaug B, Sköld C, Rydfjord J, Svensson F, Behrends M, Sävmarker J, Sjöberg PJR, Larhed M. Palladium(II)-Catalyzed Desulfitative Synthesis of Aryl Ketones from Sodium Arylsulfinates and Nitriles: Scope, Limitations, and Mechanistic Studies. J Org Chem 2014; 79:12018-32. [DOI: 10.1021/jo501875n] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Bobo Skillinghaug
- Organic
Pharmaceutical Chemistry, Department of Medicinal Chemistry, Uppsala
Biomedical Center, Uppsala University, P. O. Box 574, SE-751 23 Uppsala, Sweden
| | - Christian Sköld
- Organic
Pharmaceutical Chemistry, Department of Medicinal Chemistry, Uppsala
Biomedical Center, Uppsala University, P. O. Box 574, SE-751 23 Uppsala, Sweden
| | - Jonas Rydfjord
- Organic
Pharmaceutical Chemistry, Department of Medicinal Chemistry, Uppsala
Biomedical Center, Uppsala University, P. O. Box 574, SE-751 23 Uppsala, Sweden
| | - Fredrik Svensson
- Organic
Pharmaceutical Chemistry, Department of Medicinal Chemistry, Uppsala
Biomedical Center, Uppsala University, P. O. Box 574, SE-751 23 Uppsala, Sweden
| | - Malte Behrends
- Organic
Pharmaceutical Chemistry, Department of Medicinal Chemistry, Uppsala
Biomedical Center, Uppsala University, P. O. Box 574, SE-751 23 Uppsala, Sweden
| | - Jonas Sävmarker
- Beijer
Laboratory, Department of Medicinal Chemistry, Uppsala Biomedical
Center, Uppsala University, P. O. Box 574, SE-751 23 Uppsala, Sweden
| | - Per J. R. Sjöberg
- Department
of Chemistry, Uppsala University, BMC, Box 599, SE-751 23 Uppsala, Sweden
| | - Mats Larhed
- Department
of Medicinal Chemistry, Science for Life Laboratory, Uppsala Biomedical
Center, Uppsala University, P. O. Box 574, SE-751 23 Uppsala, Sweden
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16
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Ortgies DH, Chen F, Forgione P. Palladium and TEMPO as Co-Catalysts in a Desulfinative Homocoupling Reaction. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402134] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Colomb J, Becker G, Fieux S, Zimmer L, Billard T. Syntheses, radiolabelings, and in vitro evaluations of fluorinated PET radioligands of 5-HT6 serotoninergic receptors. J Med Chem 2014; 57:3884-90. [PMID: 24754711 DOI: 10.1021/jm500372e] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The 5-HT6 receptors are potent therapeutic targets for psychiatric and neurological diseases (schizophrenia, Alzheimer's disease, etc.). However, with lack of specific radiopharmaceuticals, their pharmacology is still incomplete and their exploration is limited to animal models. In this context, we have designed a fluorinated PET radiotracer, [(18)F]2FNQ1P, that possesses a high affinity and selectivity for 5-HT6. In vitro PET autoradiographies in rat brain sections with this radiotracer were in accordance with the 5-HT6 distribution pattern.
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Affiliation(s)
- Julie Colomb
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246), University of Lyon, University Lyon 1, CNRS, 43 Boulevard du 11 Novembre 1918, 69622 Lyon, France
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18
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Metal Catalyzed Cross-Coupling Reactions in the Decoration of Pyrimidine, Pyridazine, and Pyrazine. TOPICS IN HETEROCYCLIC CHEMISTRY 2014. [DOI: 10.1007/7081_2014_138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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19
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Miao T, Wang L. Palladium-Catalyzed Desulfitative Direct CH Arylation of Electron-Deficient Polyfluoroarenes with Sodium Arenesulfinates. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300587] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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20
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Jafarpour F, Olia MBA, Hazrati H. Highly Regioselective α-Arylation of CoumarinsviaPalladium-Catalyzed CH Activation/Desulfitative Coupling. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300707] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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