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Kolks N, Neumaier F, Neumaier B, Zlatopolskiy BD. Preparation of NIn-Methyl-6-[ 18F]fluoro- and 5-Hydroxy-7-[ 18F]fluorotryptophans as Candidate PET-Tracers for Pathway-Specific Visualization of Tryptophan Metabolism. Int J Mol Sci 2023; 24:15251. [PMID: 37894930 PMCID: PMC10607147 DOI: 10.3390/ijms242015251] [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: 09/15/2023] [Revised: 10/09/2023] [Accepted: 10/14/2023] [Indexed: 10/29/2023] Open
Abstract
Tryptophan (Trp) is an essential proteinogenic amino acid and metabolic precursor for several signaling molecules that has been implicated in many physiological and pathological processes. Since the two main branches of Trp metabolism-serotonin biosynthesis and kynurenine pathway-are differently affected by a variety of neurological and neoplastic diseases, selective visualization of these pathways is of high clinical relevance. However, while positron emission tomography (PET) with existing probes can be used for non-invasive assessment of total Trp metabolism, optimal imaging agents for pathway-specific PET imaging are still lacking. In this work, we describe the preparation of two 18F-labeled Trp derivatives, NIn-methyl-6-[18F]fluorotryptophan (NIn-Me-6-[18F]FTrp) and 5-hydroxy-7-[18F]fluorotryptophan (5-HO-7-[18F]FTrp). We also report feasible synthetic routes for the preparation of the hitherto unknown boronate radiolabeling precursors and non-radioactive reference compounds. Under optimized conditions, alcohol-enhanced Cu-mediated radiofluorination of the respective precursors afforded NIn-Me-6-[18F]FTrp and 5-HO-7-[18F]FTrp as application-ready solutions in radiochemical yields of 45 ± 7% and 29 ± 4%, respectively. As such, our work provides access to two promising candidate probes for pathway-specific visualization of Trp metabolism in amounts sufficient for their preclinical evaluation.
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Affiliation(s)
- Niklas Kolks
- Institute of Neuroscience and Medicine, Nuclear Chemistry (INM-5), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Str., 52428 Jülich, Germany; (N.K.); (F.N.); (B.D.Z.)
- Institute of Radiochemistry and Experimental Molecular Imaging, Faculty of Medicine and University Hospital Cologne, University of Cologne, Kerpener Str. 62, 50937 Cologne, Germany
| | - Felix Neumaier
- Institute of Neuroscience and Medicine, Nuclear Chemistry (INM-5), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Str., 52428 Jülich, Germany; (N.K.); (F.N.); (B.D.Z.)
- Institute of Radiochemistry and Experimental Molecular Imaging, Faculty of Medicine and University Hospital Cologne, University of Cologne, Kerpener Str. 62, 50937 Cologne, Germany
| | - Bernd Neumaier
- Institute of Neuroscience and Medicine, Nuclear Chemistry (INM-5), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Str., 52428 Jülich, Germany; (N.K.); (F.N.); (B.D.Z.)
- Institute of Radiochemistry and Experimental Molecular Imaging, Faculty of Medicine and University Hospital Cologne, University of Cologne, Kerpener Str. 62, 50937 Cologne, Germany
| | - Boris D. Zlatopolskiy
- Institute of Neuroscience and Medicine, Nuclear Chemistry (INM-5), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Str., 52428 Jülich, Germany; (N.K.); (F.N.); (B.D.Z.)
- Institute of Radiochemistry and Experimental Molecular Imaging, Faculty of Medicine and University Hospital Cologne, University of Cologne, Kerpener Str. 62, 50937 Cologne, Germany
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2
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Synthesis of arylboronates via the Pd-catalyzed desulfitative coupling reaction of sodium arylsulfinates with bis(pinacolato)diboron. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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3
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Nemoto K, Tanaka S, Konno M, Onozawa S, Chiba M, Tanaka Y, Sasaki Y, Okubo R, Hattori T. Me2AlCl-mediated carboxylation, ethoxycarbonylation, and carbamoylation of indoles. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.12.028] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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4
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Tsukamoto H, Ikeda T, Doi T. Palladium(II)-Catalyzed Annulation of Alkynes with 2-(Cyanomethyl)phenylboronates Leading to 3,4-Disubstituted 2-Naphthalenamines. J Org Chem 2015; 81:1733-45. [DOI: 10.1021/acs.joc.5b02378] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hirokazu Tsukamoto
- Graduate School of Pharmaceutical
Sciences, Tohoku University, Aramaki-aza aoba 6-3, Aoba-ku, Sendai 980-8578, Japan
| | - Taishi Ikeda
- Graduate School of Pharmaceutical
Sciences, Tohoku University, Aramaki-aza aoba 6-3, Aoba-ku, Sendai 980-8578, Japan
| | - Takayuki Doi
- Graduate School of Pharmaceutical
Sciences, Tohoku University, Aramaki-aza aoba 6-3, Aoba-ku, Sendai 980-8578, Japan
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5
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Fu TH, McElroy WT, Shamszad M, Heidebrecht RW, Gulledge B, Martin SF. Studies toward welwitindolinones: formal syntheses of N-methylwelwitindolinone C isothiocyanate and related natural products. Tetrahedron 2013; 69:5588-5603. [PMID: 23976796 PMCID: PMC3748834 DOI: 10.1016/j.tet.2013.03.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The formal syntheses of N-methylwelwitindolinone C isothiocyanate (4) and several other welwitindolinones 5-8 were achieved by the independent synthesis of 79. The synthesis featured a Lewis acid-mediated coupling between a heteroaryl carbinol and bis-TMS enol ether, an intramolecular enolate arylation, and an unprecedented intramolecular allylic alkylation of a γ-acyloxyenone.
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Affiliation(s)
- Tsung-hao Fu
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, TX 78712-0165, USA
| | - William T. McElroy
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, TX 78712-0165, USA
| | - Mariam Shamszad
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, TX 78712-0165, USA
| | - Richard W. Heidebrecht
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, TX 78712-0165, USA
| | - Brian Gulledge
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, TX 78712-0165, USA
| | - Stephen F. Martin
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, TX 78712-0165, USA
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6
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Chow WK, Yuen OY, Choy PY, So CM, Lau CP, Wong WT, Kwong FY. A decade advancement of transition metal-catalyzed borylation of aryl halides and sulfonates. RSC Adv 2013. [DOI: 10.1039/c3ra22905j] [Citation(s) in RCA: 175] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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7
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Pereira R, Benedetti R, Pérez-Rodríguez S, Nebbioso A, García-Rodríguez J, Carafa V, Stuhldreier M, Conte M, Rodríguez-Barrios F, Stunnenberg HG, Gronemeyer H, Altucci L, de Lera ÁR. Indole-Derived Psammaplin A Analogues as Epigenetic Modulators with Multiple Inhibitory Activities. J Med Chem 2012; 55:9467-91. [DOI: 10.1021/jm300618u] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Raquel Pereira
- Departamento de Química
Orgánica, Universidade de Vigo,
36310 Vigo, Spain
| | - Rosaria Benedetti
- Dipartimento
di Patologia Generale, Seconda Università degli Studi di Napoli, Vico
L. de Crecchio 7, 80138 Napoli, Italy
| | | | - Angela Nebbioso
- Dipartimento
di Patologia Generale, Seconda Università degli Studi di Napoli, Vico
L. de Crecchio 7, 80138 Napoli, Italy
| | | | - Vincenzo Carafa
- Dipartimento
di Patologia Generale, Seconda Università degli Studi di Napoli, Vico
L. de Crecchio 7, 80138 Napoli, Italy
| | - Mayra Stuhldreier
- Departamento de Química
Orgánica, Universidade de Vigo,
36310 Vigo, Spain
| | - Mariarosaria Conte
- Dipartimento
di Patologia Generale, Seconda Università degli Studi di Napoli, Vico
L. de Crecchio 7, 80138 Napoli, Italy
| | | | - Hendrik G. Stunnenberg
- NCMLS, Department
of Molecular
Biology, Radboud University, 6525 GA Nijmegen,
The Netherlands
| | - Hinrich Gronemeyer
- Department
of Cancer Biology, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CNRS, INSERM, ULP, BP 163, 67404
Illkirch Cedex, C. U. de Strasbourg, France
| | - Lucia Altucci
- Dipartimento
di Patologia Generale, Seconda Università degli Studi di Napoli, Vico
L. de Crecchio 7, 80138 Napoli, Italy
- Institute of Genetics and Biophysics (IGB), CNR, Via P. Castellino 111, 80131
Napoli, Italy
| | - Ángel R. de Lera
- Departamento de Química
Orgánica, Universidade de Vigo,
36310 Vigo, Spain
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8
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Prandi C, Occhiato EG, Tabasso S, Bonfante P, Novero M, Scarpi D, Bova ME, Miletto I. New Potent Fluorescent Analogues of Strigolactones: Synthesis and Biological Activity in Parasitic Weed Germination and Fungal Branching. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100616] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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9
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Cacchi S, Fabrizi G. Update 1 of: Synthesis and Functionalization of Indoles Through Palladium-Catalyzed Reactions. Chem Rev 2011; 111:PR215-83. [PMID: 21557620 DOI: 10.1021/cr100403z] [Citation(s) in RCA: 603] [Impact Index Per Article: 46.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Sandro Cacchi
- Dipartimento di Chimica e Technologie del Farmaco,
Sapienza, Università di Roma, P.le A. Moro 5, 00185 Roma, Italy
- This is a Chemical Reviews Perennial Review. The root paper of this title was
published in Chem. Rev.2005, 105 (7), 2873−2920, DOI: 10.1021/cr040639b; Published
(Web) July 13, 2005. Updates to the text appear in red type
| | - Giancarlo Fabrizi
- Dipartimento di Chimica e Technologie del Farmaco,
Sapienza, Università di Roma, P.le A. Moro 5, 00185 Roma, Italy
- This is a Chemical Reviews Perennial Review. The root paper of this title was
published in Chem. Rev.2005, 105 (7), 2873−2920, DOI: 10.1021/cr040639b; Published
(Web) July 13, 2005. Updates to the text appear in red type
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Im GYJ, Bronner SM, Goetz AE, Paton RS, Cheong PHY, Houk KN, Garg NK. Indolyne experimental and computational studies: synthetic applications and origins of selectivities of nucleophilic additions. J Am Chem Soc 2010; 132:17933-44. [PMID: 21114321 DOI: 10.1021/ja1086485] [Citation(s) in RCA: 182] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Efficient syntheses of 4,5-, 5,6-, and 6,7-indolyne precursors beginning from commercially available hydroxyindole derivatives are reported. The synthetic routes are versatile and allow access to indolyne precursors that remain unsubstituted on the pyrrole ring. Indolynes can be generated under mild fluoride-mediated conditions, trapped by a variety of nucleophilic reagents, and used to access a number of novel substituted indoles. Nucleophilic addition reactions to indolynes proceed with varying degrees of regioselectivity; distortion energies control regioselectivity and provide a simple model to predict the regioselectivity in the nucleophilic additions to indolynes and other unsymmetrical arynes. This model has led to the design of a substituted 4,5-indolyne that exhibits enhanced nucleophilic regioselectivity.
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Affiliation(s)
- G-Yoon J Im
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
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11
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Prieto M, Mayor S, Lloyd-Williams P, Giralt E. Use of the SPhos Ligand to Suppress Racemization in Arylpinacolboronate Ester Suzuki Couplings Involving α-Amino Acids. Synthesis of Biaryl Derivatives of 4-Hydroxyphenylglycine, Tyrosine, and Tryptophan. J Org Chem 2009; 74:9202-5. [DOI: 10.1021/jo901899w] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | - Paul Lloyd-Williams
- Department of Organic Chemistry, Universitat de Barcelona, Martí i Franquès, 1-11, Barcelona, E-08028, Spain
| | - Ernest Giralt
- Department of Organic Chemistry, Universitat de Barcelona, Martí i Franquès, 1-11, Barcelona, E-08028, Spain
- Institute for Research in Biomedicine, Barcelona Science Park, Baldiri Reixac 10, Barcelona, E-08028, Spain
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12
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Bronner SM, Bahnck KB, Garg NK. Indolynes as electrophilic indole surrogates: fundamental reactivity and synthetic applications. Org Lett 2009; 11:1007-10. [PMID: 19178159 DOI: 10.1021/ol802958a] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A mild method to access a variety of substituted indole derivatives has been developed. The strategy relies on the generation of highly reactive indolyne intermediates, which function as electrophilic indole surrogates.
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Affiliation(s)
- Sarah M Bronner
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, USA
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13
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Surry D, Buchwald S. Biarylphosphanliganden in der palladiumkatalysierten Aminierung. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200800497] [Citation(s) in RCA: 500] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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14
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Abstract
Palladium-catalyzed amination reactions of aryl halides have undergone rapid development in the last 12 years, largely driven by the implementation of new classes of ligands. Biaryl phosphanes have proven to provide especially active catalysts in this context. This Review discusses the application of these catalysts in C-N cross-coupling reactions in the synthesis of heterocycles and pharmaceuticals, in materials science, and in natural product synthesis.
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Affiliation(s)
- David S Surry
- Department of Chemistry, Room 18-490, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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15
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Main CA, Petersson HM, Rahman SS, Hartley RC. High throughput synthesis of diverse 2,5-disubstituted indoles using titanium carbenoids bearing boronate functionality. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.08.119] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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