1
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Steffann M, Bluet G, Roy S, Aubert C, Fouquet E, Hermange P. 18 F-Fluorination of a supported 2-(aryl-di-tert-butylsilyl)-N-methyl-imidazole for indirect 18 F-labeling of a V H H single-variable domain. J Labelled Comp Radiopharm 2024; 67:104-110. [PMID: 38224624 DOI: 10.1002/jlcr.4082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/15/2023] [Accepted: 12/18/2023] [Indexed: 01/17/2024]
Abstract
Anchoring an imidazole-di-tert-butyl-arylsilane possessing an azido group to a polystyrene resin provided a heterogeneous precursor that was radiolabeled easily using aqueous [18 F]fluoride. After optimizing the conditions (i.e., using DMSO as solvent and heating at 160°C for 15 min), the desired [18 F]fluorosilane was obtained in 24% radiochemical yield (RCY) and 78% radiochemical purity (RCP) using solid-phase extraction as sole purification. Then, this compound was conjugated by strain-promoted alkyne-azide cycloaddition to a model single-variable domain possessing a cyclooctyne tag, yielding to the desired 18 F-labeled bioconjugate in 2% RCY and >95% RCP after purification by a size exclusion chromatography.
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Affiliation(s)
- Marine Steffann
- Institut des Sciences Moléculaires (ISM), UMR 5255, Univ. Bordeaux, CNRS, Bordeaux INP, Talence Cedex, France
- Sanofi, Integrated Drug Discovery (IDD) Isotope Chemistry (IC), Vitry-sur-Seine, France
| | - Guillaume Bluet
- Sanofi, Integrated Drug Discovery (IDD) Isotope Chemistry (IC), Vitry-sur-Seine, France
| | - Sébastien Roy
- Sanofi, Integrated Drug Discovery (IDD) Isotope Chemistry (IC), Vitry-sur-Seine, France
| | - Catherine Aubert
- Sanofi, Integrated Drug Discovery (IDD) Isotope Chemistry (IC), Vitry-sur-Seine, France
| | - Eric Fouquet
- Institut des Sciences Moléculaires (ISM), UMR 5255, Univ. Bordeaux, CNRS, Bordeaux INP, Talence Cedex, France
| | - Philippe Hermange
- Institut des Sciences Moléculaires (ISM), UMR 5255, Univ. Bordeaux, CNRS, Bordeaux INP, Talence Cedex, France
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2
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Doussot A, Bakaï MF, Fouquet E, Hermange P. Ex Situ Generation of 18O 2 and 17O 2 from Endoperoxides for *O-Labeling and Mechanistic Studies of Oxidations by Dioxygen. Org Lett 2023. [PMID: 37276381 DOI: 10.1021/acs.orglett.3c01487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Near-stoichiometric amounts of 18O2 and 17O2 were generated ex situ from endoperoxides in a two-chamber glassware to oxidize various substrates. This strategy gave [*O2]endoperoxides, [*O1]quinones, [*O1]phenols, and [*Ox]artemisin in moderate to good yields and high isotopic enrichments (up to 84%) at affordable costs. Moreover, mass spectrometry and 17O NMR of the [*O]products provided valuable information about the chemical mechanisms involved.
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Affiliation(s)
- Alexandra Doussot
- Institut des Sciences Moléculaires (ISM), UMR 5255, Univ. Bordeaux, CNRS, Bordeaux INP, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Marie-France Bakaï
- Laboratoire Chimie Organique et Sciences de l'Environnement (LaCOSE), Faculté des Sciences et Techniques - Université de Kara, BP 404 Kara, Togo
| | - Eric Fouquet
- Institut des Sciences Moléculaires (ISM), UMR 5255, Univ. Bordeaux, CNRS, Bordeaux INP, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Philippe Hermange
- Institut des Sciences Moléculaires (ISM), UMR 5255, Univ. Bordeaux, CNRS, Bordeaux INP, 351 Cours de la Libération, 33405 Talence Cedex, France
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3
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Steffann M, Tisseraud M, Bluet G, Roy S, Aubert C, Fouquet E, Hermange P. Last-step 18F-fluorination of supported 2-(aryl-di- tert-butylsilyl)- N-methyl-imidazole conjugates for applications in positron emission tomography. Chem Commun (Camb) 2022; 58:9140-9143. [PMID: 35894218 DOI: 10.1039/d2cc03258a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aiming for potential applications in positron emission tomography, fully automated productions of 18F-labelled bioconjugates were achieved using heterogenous precursors obtained by anchoring imidazole-di-tert-butyl-arylsilanes to a polystyrene resin. The reactions were performed using either "batch" or "flow" procedures, avoiding both the time-consuming azeotropic drying and HPLC purifications usually required.
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Affiliation(s)
- Marine Steffann
- Univ. Bordeaux, Institut des Sciences Moléculaires, UMR-CNRS 5255, 351 Cours de la Libération, 33405, Talence Cedex, France. .,Sanofi, Integrated Drug Discovery (IDD) Isotope Chemistry (IC), 13 Quai Jules Guesde, 94400, Vitry-sur-Seine, France
| | - Marion Tisseraud
- Univ. Bordeaux, Institut des Sciences Moléculaires, UMR-CNRS 5255, 351 Cours de la Libération, 33405, Talence Cedex, France.
| | - Guillaume Bluet
- Sanofi, Integrated Drug Discovery (IDD) Isotope Chemistry (IC), 13 Quai Jules Guesde, 94400, Vitry-sur-Seine, France
| | - Sebastien Roy
- Sanofi, Integrated Drug Discovery (IDD) Isotope Chemistry (IC), 13 Quai Jules Guesde, 94400, Vitry-sur-Seine, France
| | - Catherine Aubert
- Sanofi, Integrated Drug Discovery (IDD) Isotope Chemistry (IC), 13 Quai Jules Guesde, 94400, Vitry-sur-Seine, France
| | - Eric Fouquet
- Univ. Bordeaux, Institut des Sciences Moléculaires, UMR-CNRS 5255, 351 Cours de la Libération, 33405, Talence Cedex, France.
| | - Philippe Hermange
- Univ. Bordeaux, Institut des Sciences Moléculaires, UMR-CNRS 5255, 351 Cours de la Libération, 33405, Talence Cedex, France.
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4
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León-Janampa N, Shinkaruk S, Gilman RH, Kirwan DE, Fouquet E, Szlosek M, Sheen P, Zimic M. Biorecognition and detection of antigens from Mycobacterium tuberculosis using a sandwich ELISA associated with magnetic nanoparticles. J Pharm Biomed Anal 2022; 215:114749. [PMID: 35447489 DOI: 10.1016/j.jpba.2022.114749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 03/28/2022] [Accepted: 03/29/2022] [Indexed: 10/18/2022]
Abstract
Tuberculosis (TB), caused by Mycobacterium tuberculosis (MTB), is one of the 10 leading causes of death worldwide, especially in low-income areas. A rapid, low-cost diagnostic assay for TB with high sensitivity and specificity is not currently available. Bio-functionalized magnetic nanoparticles (MNPs) which are able to efficiently detect and concentrate biomolecules from complex biological samples, allows improving the diagnostic immunoassays. In this way, a proof-of-concept of MNP-based sandwich immunoassay was developed to detect various MTB protein antigens. The superficial and secretory antigenic proteins considered in this research were: CFP10, ESAT6, MTC28, MPT64, 38 kDa protein, Ag85B, and MoeX. The proteins were cloned and expressed in an E. coli system. Polyclonal antibodies (ab) against the recombinant antigens were elicited in rabbits and mice. Antibodies were immobilized on the surface of amine-silanized nanoparticles (MNP@Si). The functionalized MNP@Si@ab were tested in a colorimetric sandwich enzyme-linked immunosorbent assay (sELISA-MNP@Si@ab) to recognize the selected antigens in sputum samples. The selected MTB antigens were successfully detected in sputum from TB patients in a shorter time (~ 4 h) using the sELISA-MNP@Si@ab, compared to the conventional sELISA (~15 h) standardized in home. Moreover, the sELISA-MNP@Si@ab showed the higher sensitivity in the real biological samples from infected patients.
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Affiliation(s)
- Nancy León-Janampa
- Laboratorio de Bioinformática y Biología Molecular, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Peru; Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 33400 Talence, France.
| | - Svitlana Shinkaruk
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 33400 Talence, France.
| | - Robert H Gilman
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.
| | - Daniela E Kirwan
- Institute for Infection & Immunity, St. George's, University of London, London, United Kingdom.
| | - Eric Fouquet
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 33400 Talence, France.
| | - Magali Szlosek
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 33400 Talence, France.
| | - Patricia Sheen
- Laboratorio de Bioinformática y Biología Molecular, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Peru.
| | - Mirko Zimic
- Laboratorio de Bioinformática y Biología Molecular, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Peru.
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Beladi‐Mousavi SM, Sadaf S, Hennecke A, Klein J, Mahmood AM, Rüttiger C, Gallei M, Fu F, Fouquet E, Ruiz J, Astruc D, Walder L. The Metallocene Battery: Ultrafast Electron Transfer Self Exchange Rate Accompanied by a Harmonic Height Breathing. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Seyyed Mohsen Beladi‐Mousavi
- Institute of Chemistry of New Materials Center of Physics & Chemistry of New Materials University of Osnabrück Barbarastr. 7 49069 Osnabrück Germany
- Current address: Univ. Bordeaux CNRS Bordeaux INP ISM, UMR 5255 33607 Pessac France
| | - Shamaila Sadaf
- Institute of Chemistry of New Materials Center of Physics & Chemistry of New Materials University of Osnabrück Barbarastr. 7 49069 Osnabrück Germany
| | - Ann‐Kristin Hennecke
- Institute of Chemistry of New Materials Center of Physics & Chemistry of New Materials University of Osnabrück Barbarastr. 7 49069 Osnabrück Germany
| | - Jonas Klein
- Institute of Chemistry of New Materials Center of Physics & Chemistry of New Materials University of Osnabrück Barbarastr. 7 49069 Osnabrück Germany
| | - Arsalan Mado Mahmood
- Institute of Chemistry of New Materials Center of Physics & Chemistry of New Materials University of Osnabrück Barbarastr. 7 49069 Osnabrück Germany
| | - Christian Rüttiger
- Ernst-Berl Institut fur Technische und Makromolekulare Chemie Technische Universität Darmstadt Alarich-Weiss-Str. 4 64287 Darmstadt Germany
| | - Markus Gallei
- Chair in Polymer Chemistry Saarland University Campus Saarbrücken C4 2 66123 Saarbrücken Germany
| | - Fangyu Fu
- ISM, UMR 5255 Univ. Bordeaux 351 Cours de la Libération 33405 Talence Cedex France
| | - Eric Fouquet
- ISM, UMR 5255 Univ. Bordeaux 351 Cours de la Libération 33405 Talence Cedex France
| | - Jaime Ruiz
- ISM, UMR 5255 Univ. Bordeaux 351 Cours de la Libération 33405 Talence Cedex France
| | - Didier Astruc
- ISM, UMR 5255 Univ. Bordeaux 351 Cours de la Libération 33405 Talence Cedex France
| | - Lorenz Walder
- Institute of Chemistry of New Materials Center of Physics & Chemistry of New Materials University of Osnabrück Barbarastr. 7 49069 Osnabrück Germany
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6
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Beladi-Mousavi SM, Sadaf S, Hennecke AK, Klein J, Mahmood AM, Rüttiger C, Gallei M, Fu F, Fouquet E, Ruiz J, Astruc D, Walder L. The Metallocene Battery: Ultrafast Electron Transfer Self Exchange Rate Accompanied by a Harmonic Height Breathing. Angew Chem Int Ed Engl 2021; 60:13554-13558. [PMID: 33730408 PMCID: PMC8252062 DOI: 10.1002/anie.202100174] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Indexed: 11/09/2022]
Abstract
The first all-metallocene rechargeable battery consisting of poly-cobaltocenium/- and poly-ferrocene/reduced graphene oxide composites as anode and cathode was prepared. The intrinsically fast ET self-exchange rate of metallocenes was successfully combined with an efficient ion-percolation achieved by molecular self-assembly. The resulting battery materials show ideal Nernstian behavior, is thickness scalable up to >1.2 C cm-2 , and exhibit high coulombic efficiency at ultrafast rates (200 A g-1 ). Using aqueous LiClO4 , the charge is carried exclusively by the anion. The ClO4 - intercalation is accompanied by a reciprocal height change of the active layers. Principally, volume changes in organic battery materials during charging/discharging are not desirable and represent a major safety issue. However, here, the individual height changes-due to ion breathing-are reciprocal and thus prohibiting any internal pressure build-up in the closed-cell, leading to excellent cycling stability.
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Affiliation(s)
- Seyyed Mohsen Beladi-Mousavi
- Institute of Chemistry of New Materials, Center of Physics & Chemistry of New Materials, University of Osnabrück, Barbarastr. 7, 49069, Osnabrück, Germany.,Current address: Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, 33607, Pessac, France
| | - Shamaila Sadaf
- Institute of Chemistry of New Materials, Center of Physics & Chemistry of New Materials, University of Osnabrück, Barbarastr. 7, 49069, Osnabrück, Germany
| | - Ann-Kristin Hennecke
- Institute of Chemistry of New Materials, Center of Physics & Chemistry of New Materials, University of Osnabrück, Barbarastr. 7, 49069, Osnabrück, Germany
| | - Jonas Klein
- Institute of Chemistry of New Materials, Center of Physics & Chemistry of New Materials, University of Osnabrück, Barbarastr. 7, 49069, Osnabrück, Germany
| | - Arsalan Mado Mahmood
- Institute of Chemistry of New Materials, Center of Physics & Chemistry of New Materials, University of Osnabrück, Barbarastr. 7, 49069, Osnabrück, Germany
| | - Christian Rüttiger
- Ernst-Berl Institut fur Technische und Makromolekulare Chemie, Technische Universität Darmstadt, Alarich-Weiss-Str. 4, 64287, Darmstadt, Germany
| | - Markus Gallei
- Chair in Polymer Chemistry, Saarland University, Campus Saarbrücken C4 2, 66123, Saarbrücken, Germany
| | - Fangyu Fu
- ISM, UMR 5255, Univ. Bordeaux, 351 Cours de la Libération, 33405, Talence Cedex, France
| | - Eric Fouquet
- ISM, UMR 5255, Univ. Bordeaux, 351 Cours de la Libération, 33405, Talence Cedex, France
| | - Jaime Ruiz
- ISM, UMR 5255, Univ. Bordeaux, 351 Cours de la Libération, 33405, Talence Cedex, France
| | - Didier Astruc
- ISM, UMR 5255, Univ. Bordeaux, 351 Cours de la Libération, 33405, Talence Cedex, France
| | - Lorenz Walder
- Institute of Chemistry of New Materials, Center of Physics & Chemistry of New Materials, University of Osnabrück, Barbarastr. 7, 49069, Osnabrück, Germany
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7
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Cormier M, Tabey A, Christine T, Audrain H, Fouquet E, Hermange P. Synthesis and [*C]CO-labelling of (C,N) gem-dimethylbenzylamine-palladium complexes for potential applications in positron emission tomography. Dalton Trans 2021; 50:10608-10614. [PMID: 34282814 DOI: 10.1039/d1dt01633d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Various aryl-palladium complexes were synthesised from gem-dimethylbenzylamine derivatives by C-H activation under extremely mild conditions. Interestingly, these highly stable structures reacted with [13C]carbon monoxide to produce the desired labelled lactams in 29% to 51% yields over the C-H activation/carbonylation steps. As representative examples, a non-natural amino acid and an estradiol-based conjugate were prepared and labelled in model experiments with [13C]CO in homogeneous or heterogeneous conditions. Especially, the latter was radiolabelled with [11C]CO using a convenient procedure from the resin-supported palladium complex precursor. Thus, these results strongly suggest that cyclometallated palladium complexes obtained from gem-dimethylbenzylamine moieties are promising precursors for the practical synthesis of new [11C]tracers for Positron Emission Tomography.
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Affiliation(s)
- Morgan Cormier
- Univ. Bordeaux, Institut des Sciences Moléculaires, UMR-CNRS 5255, 351 Cours de la Libération, 33405 Talence Cedex, France.
| | - Alexis Tabey
- Univ. Bordeaux, Institut des Sciences Moléculaires, UMR-CNRS 5255, 351 Cours de la Libération, 33405 Talence Cedex, France.
| | - Thifanie Christine
- Univ. Bordeaux, Institut des Sciences Moléculaires, UMR-CNRS 5255, 351 Cours de la Libération, 33405 Talence Cedex, France.
| | - Hélène Audrain
- Department of Nuclear Medicine and PET Center, Aarhus University Hospital, Palle Juul-Jensen Boulevard 165, 8200 Aarhus N, Denmark
| | - Eric Fouquet
- Univ. Bordeaux, Institut des Sciences Moléculaires, UMR-CNRS 5255, 351 Cours de la Libération, 33405 Talence Cedex, France.
| | - Philippe Hermange
- Univ. Bordeaux, Institut des Sciences Moléculaires, UMR-CNRS 5255, 351 Cours de la Libération, 33405 Talence Cedex, France.
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8
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Tabey A, Christine T, Fouquet E, Hermange P. Practical synthesis of
13
C‐labeled conjugates by [
13
C]CO‐carbonylation of supported arylbipyridylpalladium complexes and alkyne–azide cycloadditions. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5779] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Alexis Tabey
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255 351 Cours de la Libération, 33405 Talence Cedex France
| | - Thifanie Christine
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255 351 Cours de la Libération, 33405 Talence Cedex France
| | - Eric Fouquet
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255 351 Cours de la Libération, 33405 Talence Cedex France
| | - Philippe Hermange
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255 351 Cours de la Libération, 33405 Talence Cedex France
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9
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León-Janampa N, Zimic M, Shinkaruk S, Quispe-Marcatoma J, Gutarra A, Le Bourdon G, Gayot M, Changanaqui K, Gilman RH, Fouquet E, Sheen P, Szlosek M. Synthesis, characterization and bio-functionalization of magnetic nanoparticles to improve the diagnosis of tuberculosis. Nanotechnology 2020; 31:175101. [PMID: 31931490 DOI: 10.1088/1361-6528/ab6ab1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Mycobacterium tuberculosis is the cause of one of the diseases with the highest mortality and morbidity rate in the Americas and in the world. In developing countries, the diagnosis of tuberculosis (TB) is based on baciloscopy and bacteriological cultures. The first method has a low sensitivity, and the second can take several weeks to reach a confirmatory diagnosis. The lack of a rapid diagnosis compromises the efforts to control this disease and favors the transmission of tuberculosis to the susceptible population. In this work, we present the synthesis, amine-silanization, characterization and bio-functionalization of magnetic nanoparticles (MNPs) to develop a sandwich ELISA to detect and concentrate antigens from M. tuberculosis. For this purpose, a recombinant mycobacterial heat shock protein Hsp16.3, which contributes to the persistence of TB, was cloned and expressed in the E. coli system. Polyclonal antibodies anti-Hsp16.3 were produced in a rabbit and in mice. Magnetic nanoparticles were synthesized by co-precipitation, amine-functionalized and characterized by several physical-chemical methods. The XRD, Mossbauer spectroscopy, zeta potential, TEM, and FTIR all proved the successful preparation of the MNPs showing a diffraction crystal diameter of 10.48 ± 2.56 nm, superficial net charge of [Formula: see text]: +23.57 ± 2.87 mV, characteristic patterns of magnetite and a structure similar to a sphere. Additionally, it showed a magnetization saturation of 37.06 emu.g-1. For the functionalization of nanoparticle surfaces with anti-Hsp16.3, the active ester method was used for bond formation, and parameters such as time of incubation, coupling agents ratio (EDC/NHS) and concentration as well as surface saturation level of amine-silanized MNPs (MNP@Si@NH2) were standardized. Finally, bio-functionalized MNPs were used to detect, fix and concentrate the recombinant antigen Hsp16.3 from M. tuberculosis in a sandwich ELISA-MNP assay.
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Affiliation(s)
- Nancy León-Janampa
- Laboratorio de Bioinformática y Biología Molecular. Facultad de Ciencias y Filosofía. Universidad Peruana Cayetano Heredia, Lima, Peru. Univ. Bordeaux, ISM, Institut des Sciences Moléculaires, UMR 5255 CNRS, 33405 Talence, France
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10
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Fu F, Dedieu A, Wang W, Chen T, Song Y, Fouquet E, Hamon JR, Zhu M, Astruc D. Stabilization of a new nanocomposite family by reduction of gold nanoclusters with electron-reservoir complexes. Chem Commun (Camb) 2019; 55:10277-10280. [PMID: 31396608 DOI: 10.1039/c9cc05260g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four stable 19-electron Fe and Co sandwich electron-reservoirs and three hydride reservoir complexes reduce the prototypal nanocluster Au25(SR)18 (R = CH2CH2Ph) leading to a largely increased kinetic stabilization of the anionic nanocluster form compared to previously known nanocluster anion salts; these salts represent new and robust nanocomposite anionic gold clusters with 18-electron sandwich complexes as counter cations.
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Affiliation(s)
- Fangyu Fu
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China.
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11
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Tabey A, Audrain H, Fouquet E, Hermange P. Bioconjugated arylpalladium complexes on solid supports for a convenient last-step synthesis of 11C-labelled tracers for positron emission tomography. Chem Commun (Camb) 2019; 55:7587-7590. [DOI: 10.1039/c9cc03215k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bioconjugated arylpalladium complexes anchored onto polystyrene beads provided [11C]CO-labelled compounds with excellent radiochemical purities after a simple filtration.
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Affiliation(s)
| | - Hélène Audrain
- Department of Nuclear Medicine and PET Center
- Aarhus University Hospital
- DK-8000 Aarhus
- Denmark
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12
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Abstract
A cycloheptyne dicobalt-carbonyl complex with a terminal alkyne was synthesized by a short procedure, and was able to react selectively in Strain Promoted Alkyne Azide Cycloaddition (SPAAC) or Copper Catalysed Alkyne Azide Cycloaddition (CuAAC) depending on the conditions.
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Affiliation(s)
- Morgan Cormier
- Univ. Bordeaux
- Institut des Sciences Moléculaires
- 33405 Talence Cedex
- France
| | - Eric Fouquet
- Univ. Bordeaux
- Institut des Sciences Moléculaires
- 33405 Talence Cedex
- France
| | - Philippe Hermange
- Univ. Bordeaux
- Institut des Sciences Moléculaires
- 33405 Talence Cedex
- France
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13
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Fu F, Ciganda R, Wang Q, Tabey A, Wang C, Escobar A, Martinez-Villacorta AM, Hernández R, Moya S, Fouquet E, Ruiz J, Astruc D. Cobaltocene Reduction of Cu and Ag Salts and Catalytic Behavior of the Nanoparticles Formed. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02338] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Fangyu Fu
- ISM, UMR CNRS 5255, Université de Bordeaux, Talence 33405 Cedex, France
| | - Roberto Ciganda
- ISM, UMR CNRS 5255, Université de Bordeaux, Talence 33405 Cedex, France
- Facultad de Quimica, Universidad del Pais Vasco, Apdo 1072, 20080 San Sebastian, Spain
| | - Qi Wang
- ISM, UMR CNRS 5255, Université de Bordeaux, Talence 33405 Cedex, France
| | - Alexis Tabey
- ISM, UMR CNRS 5255, Université de Bordeaux, Talence 33405 Cedex, France
| | - Changlong Wang
- ISM, UMR CNRS 5255, Université de Bordeaux, Talence 33405 Cedex, France
| | - Ane Escobar
- Soft Matter Nanotechnology Lab, CIC biomaGUNE, Paseo Miramón 182, 20014 Donostia-San Sebastián, Gipuzkoa, Spain
| | | | - Ricardo Hernández
- Facultad de Quimica, Universidad del Pais Vasco, Apdo 1072, 20080 San Sebastian, Spain
| | - Sergio Moya
- Soft Matter Nanotechnology Lab, CIC biomaGUNE, Paseo Miramón 182, 20014 Donostia-San Sebastián, Gipuzkoa, Spain
| | - Eric Fouquet
- ISM, UMR CNRS 5255, Université de Bordeaux, Talence 33405 Cedex, France
| | - Jaime Ruiz
- ISM, UMR CNRS 5255, Université de Bordeaux, Talence 33405 Cedex, France
| | - Didier Astruc
- ISM, UMR CNRS 5255, Université de Bordeaux, Talence 33405 Cedex, France
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14
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Fu F, Wang C, Wang Q, Martinez-Villacorta AM, Escobar A, Chong H, Wang X, Moya S, Salmon L, Fouquet E, Ruiz J, Astruc D. Highly Selective and Sharp Volcano-type Synergistic Ni2Pt@ZIF-8-Catalyzed Hydrogen Evolution from Ammonia Borane Hydrolysis. J Am Chem Soc 2018; 140:10034-10042. [DOI: 10.1021/jacs.8b06511] [Citation(s) in RCA: 226] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Fangyu Fu
- ISM, UMR CNRS No. 5255, Université de Bordeaux, 33405 Talence Cedex, France
| | - Changlong Wang
- ISM, UMR CNRS No. 5255, Université de Bordeaux, 33405 Talence Cedex, France
- Laboratoire de Chimie de Coordination, UPR CNRS 8241, 31077 Toulouse Cedex, France
| | - Qi Wang
- ISM, UMR CNRS No. 5255, Université de Bordeaux, 33405 Talence Cedex, France
| | | | - Ane Escobar
- Soft Matter Nanotechnology Lab, CIC biomaGUNE, Paseo Miramón 182, 20014 Donostia-San Sebastián, Gipuzkoa, Spain
| | - Hanbao Chong
- Institute of Physical Science and Information Technology, Anhui University, No. 111 Jiulong Avenue, Hefei 230601, China
| | - Xin Wang
- Department of Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei 230026, China
| | - Sergio Moya
- Soft Matter Nanotechnology Lab, CIC biomaGUNE, Paseo Miramón 182, 20014 Donostia-San Sebastián, Gipuzkoa, Spain
| | - Lionel Salmon
- Laboratoire de Chimie de Coordination, UPR CNRS 8241, 31077 Toulouse Cedex, France
| | - Eric Fouquet
- ISM, UMR CNRS No. 5255, Université de Bordeaux, 33405 Talence Cedex, France
| | - Jaime Ruiz
- ISM, UMR CNRS No. 5255, Université de Bordeaux, 33405 Talence Cedex, France
| | - Didier Astruc
- ISM, UMR CNRS No. 5255, Université de Bordeaux, 33405 Talence Cedex, France
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15
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Tisseraud M, Schulz J, Vimont D, Berlande M, Fernandez P, Hermange P, Fouquet E. Highly hindered 2-(aryl-di-tert-butylsilyl)-N-methyl-imidazoles: a new tool for the aqueous 19F- and 18F-fluorination of biomolecule-based structures. Chem Commun (Camb) 2018; 54:5098-5101. [PMID: 29714374 DOI: 10.1039/c8cc01782d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A new class of silicon-based fluoride acceptors with a C-linked heterocycle as the leaving group was synthesized in one step from commercial chemicals, and linked to biomolecules. The resulting conjugates were efficiently 19F-fluorinated in aqueous mixtures, and switching to 18F-labelling provided nucleoside- and peptide-based bioconjugates with excellent molar activities suitable for biological applications.
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Affiliation(s)
- Marion Tisseraud
- Univ. Bordeaux, Institut des Sciences Moléculaires, UMR-CNRS 5255, 351 Cours de la Libération, 33405 Talence Cedex, France.
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16
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Fu F, Wang Q, Ciganda R, Martinez-Villacorta AM, Escobar A, Moya S, Fouquet E, Ruiz J, Astruc D. Electron- and Hydride-Reservoir Organometallics as Precursors of Catalytically Efficient Transition Metal Nanoparticles in Water. Chemistry 2018; 24:6645-6653. [DOI: 10.1002/chem.201800418] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Fangyu Fu
- ISM; UMR CNRS N° 5255; University of Bordeaux; 33405 Talence Cedex France
| | - Qi Wang
- ISM; UMR CNRS N° 5255; University of Bordeaux; 33405 Talence Cedex France
| | - Roberto Ciganda
- ISM; UMR CNRS N° 5255; University of Bordeaux; 33405 Talence Cedex France
- Facultad de Quimica; Universidad del Pais Vasco; Apdo 1072 20080 San Sebastian Spain
| | | | - Ane Escobar
- Soft Matter Nanotechnology Lab; CIC biomaGUNE; Paseo Miramón 182 20014 Donostia-San Sebastián Gipuzkoa Spain
| | - Sergio Moya
- Soft Matter Nanotechnology Lab; CIC biomaGUNE; Paseo Miramón 182 20014 Donostia-San Sebastián Gipuzkoa Spain
| | - Eric Fouquet
- ISM; UMR CNRS N° 5255; University of Bordeaux; 33405 Talence Cedex France
| | - Jaime Ruiz
- ISM; UMR CNRS N° 5255; University of Bordeaux; 33405 Talence Cedex France
| | - Didier Astruc
- ISM; UMR CNRS N° 5255; University of Bordeaux; 33405 Talence Cedex France
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17
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Tabey A, Berlande M, Hermange P, Fouquet E. Mechanistic and asymmetric investigations of the Au-catalysed cross-coupling between aryldiazonium salts and arylboronic acids using (P,N) gold complexes. Chem Commun (Camb) 2018; 54:12867-12870. [DOI: 10.1039/c8cc07530a] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Aryldiazonium salts and arylboronic acids were coupled via three different pathways from (P,N)–AuCl complexes, with enantiomeric excesses up to 26%.
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Affiliation(s)
- Alexis Tabey
- Univ. Bordeaux
- Institut des Sciences Moléculaires
- UMR-CNRS 5255
- 33405 Talence Cedex
- France
| | - Murielle Berlande
- Univ. Bordeaux
- Institut des Sciences Moléculaires
- UMR-CNRS 5255
- 33405 Talence Cedex
- France
| | - Philippe Hermange
- Univ. Bordeaux
- Institut des Sciences Moléculaires
- UMR-CNRS 5255
- 33405 Talence Cedex
- France
| | - Eric Fouquet
- Univ. Bordeaux
- Institut des Sciences Moléculaires
- UMR-CNRS 5255
- 33405 Talence Cedex
- France
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18
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Cornilleau T, Simonsen M, Vang M, Taib-Maamar N, Dessolin J, Audrain H, Hermange P, Fouquet E. Last-Step Pd-Mediated [11C]CO Labeling of a Moxestrol-Conjugated o-Iodobenzyl Alcohol: From Model Experiments to in Vivo Positron Emission Tomography Studies. Bioconjug Chem 2017; 28:2887-2894. [DOI: 10.1021/acs.bioconjchem.7b00583] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thomas Cornilleau
- University of Bordeaux, CNRS, Institut des Sciences Moléculaires, UMR 5255, 351 Cours de la
Libération, 33405 Talence Cedex, France
| | - Mette Simonsen
- Department
of Nuclear Medicine and PET Center, Aarhus University Hospital, Nørrebrogade 44, DK-8000 Aarhus, Denmark
| | - Maylou Vang
- University of Bordeaux, CNRS, CBMN, UMR 5248, Allée Geoffroy Saint-Hilaire, 33600 Pessac, France
| | - Nada Taib-Maamar
- University of Bordeaux, CNRS, CBMN, UMR 5248, Allée Geoffroy Saint-Hilaire, 33600 Pessac, France
| | - Jean Dessolin
- University of Bordeaux, CNRS, CBMN, UMR 5248, Allée Geoffroy Saint-Hilaire, 33600 Pessac, France
| | - Hélène Audrain
- Department
of Nuclear Medicine and PET Center, Aarhus University Hospital, Nørrebrogade 44, DK-8000 Aarhus, Denmark
| | - Philippe Hermange
- University of Bordeaux, CNRS, Institut des Sciences Moléculaires, UMR 5255, 351 Cours de la
Libération, 33405 Talence Cedex, France
| | - Eric Fouquet
- University of Bordeaux, CNRS, Institut des Sciences Moléculaires, UMR 5255, 351 Cours de la
Libération, 33405 Talence Cedex, France
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19
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Fu F, Martinez A, Wang C, Ciganda R, Yate L, Escobar A, Moya S, Fouquet E, Ruiz J, Astruc D. Exposure to air boosts CuAAC reactions catalyzed by PEG-stabilized Cu nanoparticles. Chem Commun (Camb) 2017; 53:5384-5387. [DOI: 10.1039/c7cc02504a] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The catalytic activity of Cu(0) NPs is boosted upon aerobic oxidation, forming Cu2O NPs, and further improved on an SBA-15 support.
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Affiliation(s)
- Fangyu Fu
- ISM
- UMR CNRS No. 5255
- Univ. Bordeaux
- 33405 Talence Cedex
- France
| | - Angel Martinez
- Soft Matter Nanotechnology Lab
- CIC biomaGUNE
- Gipuzkoa
- Spain
| | - Changlong Wang
- ISM
- UMR CNRS No. 5255
- Univ. Bordeaux
- 33405 Talence Cedex
- France
| | | | - Luis Yate
- Soft Matter Nanotechnology Lab
- CIC biomaGUNE
- Gipuzkoa
- Spain
| | - Ane Escobar
- Soft Matter Nanotechnology Lab
- CIC biomaGUNE
- Gipuzkoa
- Spain
| | - Sergio Moya
- Soft Matter Nanotechnology Lab
- CIC biomaGUNE
- Gipuzkoa
- Spain
| | - Eric Fouquet
- ISM
- UMR CNRS No. 5255
- Univ. Bordeaux
- 33405 Talence Cedex
- France
| | - Jaime Ruiz
- ISM
- UMR CNRS No. 5255
- Univ. Bordeaux
- 33405 Talence Cedex
- France
| | - Didier Astruc
- ISM
- UMR CNRS No. 5255
- Univ. Bordeaux
- 33405 Talence Cedex
- France
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20
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Fu F, Martinez-Villacorta AM, Escobar A, Irigoyen J, Moya S, Fouquet E, Ruiz J, Astruc D. Synthesis of late transition-metal nanoparticles by Na naphthalenide reduction of salts and their catalytic efficiency. Inorg Chem Front 2017. [DOI: 10.1039/c7qi00530j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Late transition-metal nanoparticles were synthesized using Na naphthalenide reduction of salts followed by salting-out purification catalyse click, redox and coupling reactions.
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Affiliation(s)
- Fangyu Fu
- ISM
- UMR CNRS No. 5255
- Univ. Bordeaux
- 33405 Talence Cedex
- France
| | | | - Ane Escobar
- Soft Matter Nanotechnology Lab
- CIC biomaGUNE
- 20014 Donostia-San Sebastián
- Spain
| | - Joseba Irigoyen
- Soft Matter Nanotechnology Lab
- CIC biomaGUNE
- 20014 Donostia-San Sebastián
- Spain
| | - Sergio Moya
- Soft Matter Nanotechnology Lab
- CIC biomaGUNE
- 20014 Donostia-San Sebastián
- Spain
| | - Eric Fouquet
- ISM
- UMR CNRS No. 5255
- Univ. Bordeaux
- 33405 Talence Cedex
- France
| | - Jaime Ruiz
- ISM
- UMR CNRS No. 5255
- Univ. Bordeaux
- 33405 Talence Cedex
- France
| | - Didier Astruc
- ISM
- UMR CNRS No. 5255
- Univ. Bordeaux
- 33405 Talence Cedex
- France
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21
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Cornilleau T, Hermange P, Fouquet E. Gold-catalysed cross-coupling between aryldiazonium salts and arylboronic acids: probing the usefulness of photoredox conditions. Chem Commun (Camb) 2016; 52:10040-3. [DOI: 10.1039/c6cc04239b] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Combining gold catalysis and photoredox processes allowed the synthesis of biaryl compounds from diazonium salts and boronic acids under mild conditions.
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Affiliation(s)
- Thomas Cornilleau
- Univ. Bordeaux
- Institut des Sciences Moléculaires
- UMR-CNRS 5255, 351
- Cours de la Libération
- 33405 Talence Cedex
| | - Philippe Hermange
- Univ. Bordeaux
- Institut des Sciences Moléculaires
- UMR-CNRS 5255, 351
- Cours de la Libération
- 33405 Talence Cedex
| | - Eric Fouquet
- Univ. Bordeaux
- Institut des Sciences Moléculaires
- UMR-CNRS 5255, 351
- Cours de la Libération
- 33405 Talence Cedex
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22
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Guéroux M, Pinaud-Szlosek M, Fouquet E, De Freitas V, Laguerre M, Pianet I. How wine polyphenols can fight Alzheimer disease progression: towards a molecular explanation. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.06.091] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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23
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Cornilleau T, Audrain H, Guillemet A, Hermange P, Fouquet E. General Last-Step Labeling of Biomolecule-Based Substrates by [12C], [13C], and [11C] Carbon Monoxide. Org Lett 2015; 17:354-7. [DOI: 10.1021/ol503471e] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Thomas Cornilleau
- Université de Bordeaux, Institut des Sciences Moléculaires, UMR-CNRS 5255, 351, Cours de la
Libération, 33405 Talence Cedex, France
| | - Hélène Audrain
- Department
of Nuclear Medicine and PET Center, Aarhus University Hospital, Nørrebrogade 44, DK-8000 Aarhus, Denmark
| | - Aude Guillemet
- Université de Bordeaux, Institut des Sciences Moléculaires, UMR-CNRS 5255, 351, Cours de la
Libération, 33405 Talence Cedex, France
| | - Philippe Hermange
- Université de Bordeaux, Institut des Sciences Moléculaires, UMR-CNRS 5255, 351, Cours de la
Libération, 33405 Talence Cedex, France
| | - Eric Fouquet
- Université de Bordeaux, Institut des Sciences Moléculaires, UMR-CNRS 5255, 351, Cours de la
Libération, 33405 Talence Cedex, France
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24
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Oger N, Le Callonnec F, Jacquemin D, Fouquet E, Le Grognec E, Felpin FX. Heck-Matsuda Arylation of Olefins Through a Bicatalytic Approach: Improved Procedures and Rationalization. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201301144] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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25
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Hazari PP, Schulz J, Vimont D, Chadha N, Allard M, Szlosek-Pinaud M, Fouquet E, Mishra AK. A new SiF-Dipropargyl glycerol scaffold as a versatile prosthetic group to design dimeric radioligands: synthesis of the [(18) F]BMPPSiF tracer to image serotonin receptors. ChemMedChem 2013; 9:337-49. [PMID: 24376058 DOI: 10.1002/cmdc.201300458] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Indexed: 11/12/2022]
Abstract
A novel SiX-dipropargyl glycerol scaffold (X: H, F, or (18) F) was developed as a versatile prosthetic group that provides technical advantages for the preparation of dimeric radioligands based on silicon fluoride acceptor pre- or post-labeling with fluorine-18. Rapid conjugation with the prosthetic group takes place in microwave-assisted click conjugation under mild conditions. Thus, a bivalent homodimeric SiX-dipropargyl glycerol derivatized radioligand, [(18) F]BMPPSiF, with enhanced affinity was developed by using click conjugation. High uptake of the radioligand was demonstrated in 5-HT1A receptor-rich regions in the brain with positron emission tomography. Molecular docking studies (rigid protein-flexible ligand) of BMPPSiF and known antagonists (WAY-100635, MPPF, and MefWAY) with monomeric, dimeric, and multimeric 5-HT1A receptor models were performed, with the highest G score obtained for docked BMPPSiF: -6.766 as compared with all three antagonists on the monomeric model. Multimeric induced-fit docking was also performed to visualize the comparable mode of binding under in vivo conditions, and a notably improved G score of -8.455 was observed for BMPPSiF. These data directly correlate the high binding potential of BMPPSiF with the bivalent binding mode obtained in the biological studies. The present study warrants wide application of the SiX-dipropargyl glycerol prosthetic group in the development of ligands for imaging with enhanced affinity markers for specific targeting based on peptides, nucleosides, and lipids.
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Affiliation(s)
- Puja Panwar Hazari
- Division of Cyclotron and Radiopharamceutical Sciences, Brig. SK Mazumdar Road, Delhi 110054 (India)
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26
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Rossy C, Majimel J, Fouquet E, Delacôte C, Boujtita M, Labrugère C, Tréguer-Delapierre M, Felpin FX. Stabilisation of Carbon-Supported Palladium Nanoparticles through the Formation of an Alloy with Gold: Application to the Sonogashira Reaction. Chemistry 2013; 19:14024-9. [DOI: 10.1002/chem.201300347] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 07/16/2013] [Indexed: 11/07/2022]
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27
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Rossy C, Fouquet E, Felpin FX. Practical synthesis of indoles and benzofurans in water using a heterogeneous bimetallic catalyst. Beilstein J Org Chem 2013; 9:1426-31. [PMID: 23946838 PMCID: PMC3740569 DOI: 10.3762/bjoc.9.160] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Accepted: 06/25/2013] [Indexed: 11/23/2022] Open
Abstract
This paper describes the preparation of indoles, azaindoles and benzofurans in pure water by using a new heterogeneous Pd–Cu/C catalyst through a cascade Sonogashira alkynylation–cyclization sequence. Details of the optimization studies and the substrate scope are discussed. This procedure allows the preparation of heterocycles with good yields and is tolerant to a wide variety of functional groups.
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Affiliation(s)
- Cybille Rossy
- Université de Bordeaux, UMR CNRS 5255, ISM, 351 cours de la Libération, 33405 Talence Cedex, France ; Université de Nantes, UFR Sciences et Techniques, UMR CNRS 6230, CEISAM, 2 rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
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28
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Joncour R, Susperregui N, Pinaud N, Miqueu K, Fouquet E, Sotiropoulos JM, Felpin FX. Chelation-Assisted Cross-Coupling of Anilines through In Situ Activation as Diazonium Salts with Boronic Acids under Ligand-, Base-, and Salt-Free Conditions. Chemistry 2013; 19:9291-6. [DOI: 10.1002/chem.201300858] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Indexed: 11/07/2022]
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29
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Bordenave T, Hazari PP, James D, Mishra AK, Szlosek-Pinaud M, Fouquet E. 11C Click Chemistry Using [11C]Methyl Azide: Simplified, Versatile, and Practical Alternative Access to [11C]Nucleosides and [11C]Oligonucleotides for PET Imaging. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201379] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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30
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Cala O, Dufourc EJ, Fouquet E, Manigand C, Laguerre M, Pianet I. The colloidal state of tannins impacts the nature of their interaction with proteins: the case of salivary proline-rich protein/procyanidins binding. Langmuir 2012; 28:17410-17418. [PMID: 23173977 DOI: 10.1021/la303964m] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
While the definition of tannins has been historically associated with its propensity to bind proteins in a nonspecific way, it is now admitted that specific interaction also occurs. The case of the astringency perception is a good example to illustrate this phenomenon: astringency is commonly described as a tactile sensation induced by the precipitation of a complex composed of proline-rich proteins present in the human saliva and tannins present in beverages such as tea or red wines. In the present work, the interactions between a human saliva protein segment and three different procyanidins (B1, B3, and C2) were investigated at the atomic level by NMR and molecular dynamics. The data provided evidence for (i) an increase in affinity compared to shortest human saliva peptides, which is accounted for by protein "wraping around" the tannin, (ii) a specificity in the interaction below tannin critical micelle concentration (CMC) of ca. 10 mM, with an affinity scale such that C2 > B1 > B3, and (iii) a nonspecific binding above tannin CMC that conducts irremediably to the precipitation of the tannins/protein complex. Such physicochemical findings describe in accurate terms saliva protein-tannin interactions and provide support for a more subtle description by oenologists of wine astringency perception in the mouth.
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Affiliation(s)
- Olivier Cala
- Univ. Bordeaux and CNRS, Institut des Sciences Moléculaires, UMR 5255, CESAMO, 351 cours de la Libération, Talence F-33405, France
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31
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Susperregui N, Miqueu K, Sotiropoulos JM, Le Callonnec F, Fouquet E, Felpin FX. Sustainable Heck-Matsuda reaction with catalytic amounts of diazonium salts: an experimental and theoretical study. Chemistry 2012; 18:7210-8. [PMID: 22532420 DOI: 10.1002/chem.201200444] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Indexed: 11/11/2022]
Abstract
The palladium-catalyzed Heck-Matsuda reaction with a catalytic amount of an in-situ-generated diazonium salt proceeded under mild and sustainable conditions. The reaction proceeded at room temperature, under base-free conditions, and only generated tBuOH, H(2)O, and N(2) as by-products. Ortho-substituted diazonium salts were more-efficiently coupled to methyl acrylate than their corresponding para isomers, which required the addition of anisole as an additive. In support of these experimental data, we carried out theoretical studies to gain a deeper understanding of these reaction outcomes.
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Affiliation(s)
- Nicolas Susperregui
- Université de Pau et des Pays de l'Adour, UMR CNRS 5254, IPREM, 2, Avenue du Président Pierre Angot, 64053 Pau Cedex 9, France
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32
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Amigues E, Schulz J, Szlosek-Pinaud M, Fernandez P, Silvente-Poirot S, Brillouet S, Courbon F, Fouquet E. [18F]Si-RiboRGD: From Design and Synthesis to the Imaging of αvβ3 Integrins in Melanoma Tumors. Chempluschem 2012. [DOI: 10.1002/cplu.201200022] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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33
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Guéroux M, Laguerre M, Szlosek-Pinaud M, Fouquet E, Pianet I. Polyphenols and Alzheimer's Disease: Tau/polyphenol interactions investigated by NMR and molecular modelling. ACTA ACUST UNITED AC 2012. [DOI: 10.3233/nua-130015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Marie Guéroux
- University of Bordeaux, CNRS, Institut des Sciences Moléculaires, Talence, France
| | - Michel Laguerre
- University of Bordeaux, CNRS, Chimie et Biologie des Membranes et Nanonobjets, Pessac, France
| | | | - Eric Fouquet
- University of Bordeaux, CNRS, Institut des Sciences Moléculaires, Talence, France
| | - Isabelle Pianet
- University of Bordeaux, CNRS, Institut des Sciences Moléculaires, Talence, France
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Bonin H, Fouquet E, Felpin FX. Aryl Diazonium versus Iodonium Salts: Preparation, Applications and Mechanisms for the Suzuki-Miyaura Cross-Coupling Reaction. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100531] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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35
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Felpin FX, Rossy C, Fouquet E. A Sustainable Procedure Combining the Advantages of Both Homogeneous and Heterogeneous Catalysis for the Heck-Matsuda Reaction. SYNTHESIS-STUTTGART 2011. [DOI: 10.1055/s-0031-1289585] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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36
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Felpin FX, Fouquet E. Reliable and Safe, Gram-Scale Hydrogenation and Hydrogenolysis of O-Benzyl Ether Groups with In Situ Pd0/C Catalyst. SYNTHESIS-STUTTGART 2011. [DOI: 10.1055/s-0030-1260167] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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37
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Cala O, Fabre S, Pinaud N, Dufourc EJ, Fouquet E, Laguerre M, Pianet I. Towards a molecular interpretation of astringency: synthesis, 3D structure, colloidal state, and human saliva protein recognition of procyanidins. Planta Med 2011; 77:1116-1122. [PMID: 21412697 DOI: 10.1055/s-0030-1270848] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Astringency is a sensation in the mouth used in judging the quality of red wine. The rough, dry, and puckering sensation called astringency is the result of an interaction between tannins and saliva proteins, mainly proline-rich proteins (PRP), which leads to the formation and precipitation of a complex. A dry and rough sensation is then perceived in the mouth. To get an insight into astringency at the molecular level we investigated: (i) An efficient and iterative method for 4-8 procyanidin synthesis, which gives rise to all possible 4-8 procyanidins up to the tetramer with total control of degree of oligomerization and stereochemistry. (ii) The 3D-structural preferences, which take into account their internal movements, using 2D NMR and molecular modeling. (iii) The self-association process in water or hydroalcoholic solutions using diffusion NMR spectroscopy that gives the active proportion of tannins able to fix proteins. (iv) A comprehensive description of the PRP-procyanidin complex formation to get information about stoichiometry, binding site localization, and affinity constants for different procyanidins. The data collected suggest that the interactions are controlled by both procyanidin conformational and colloidal state preferences. All these results provide new insights into the molecular interpretation of tannin astringency.
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Affiliation(s)
- Olivier Cala
- UMR 5255 ISM CESAMO, Université Bordeaux, CNRS, Talence, France
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Nassar-Hardy L, Deraedt C, Fouquet E, Felpin FX. A Fully Palladium-Mediated Construction of Phenanthrenes and Naphthoxindoles. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100477] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Absalon C, Fabre S, Tarascou I, Fouquet E, Pianet I. New strategies to study the chemical nature of wine oligomeric procyanidins. Anal Bioanal Chem 2011; 401:1485-95. [DOI: 10.1007/s00216-011-4988-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Revised: 04/01/2011] [Accepted: 04/05/2011] [Indexed: 11/28/2022]
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Callonnec FL, Fouquet E, Felpin FX. Unprecedented Substoichiometric Use of Hazardous Aryl Diazonium Salts in the Heck-Matsuda Reaction via a Double Catalytic Cycle. Org Lett 2011; 13:2646-9. [DOI: 10.1021/ol200752x] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- François Le Callonnec
- Université de Bordeaux, UMR CNRS 5255, Institut des Sciences Moléculaires, 351 Cours de la Libération, Talence, 33405 France
| | - Eric Fouquet
- Université de Bordeaux, UMR CNRS 5255, Institut des Sciences Moléculaires, 351 Cours de la Libération, Talence, 33405 France
| | - François-Xavier Felpin
- Université de Bordeaux, UMR CNRS 5255, Institut des Sciences Moléculaires, 351 Cours de la Libération, Talence, 33405 France
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Schulz J, Vimont D, Bordenave T, James D, Escudier JM, Allard M, Szlosek-Pinaud M, Fouquet E. Silicon-based chemistry: an original and efficient one-step approach to [18F]-nucleosides and [18F]-oligonucleotides for PET imaging. Chemistry 2011; 17:3096-100. [PMID: 21312302 DOI: 10.1002/chem.201003234] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2010] [Revised: 01/10/2011] [Indexed: 12/13/2022]
Abstract
Take it eaSi! Nucleosides, dinucleotides, and one oligonucleotide, all modified by click chemistry, have for the first time been directly and very efficiently labeled with (18)F by using a silicon-based, one-step approach that opens the way for the development of a new class of positron emission tomography (PET) tracers (see graphic).
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Affiliation(s)
- Jürgen Schulz
- Université de Bordeaux, LIMF, UMR5231, 146, rue Léo Saignat, Bordeaux, 33076, France
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Felpin FX, Fouquet E. A useful, reliable and safer protocol for hydrogenation and the hydrogenolysis of O-benzyl groups: the in situ preparation of an active Pd(0)/C catalyst with well-defined properties. Chemistry 2011; 16:12440-5. [PMID: 20845414 DOI: 10.1002/chem.201001377] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A simple, highly reproducible protocol for the hydrogenation of alkenes and alkynes and for the hydrogenolysis of O-benzyl ethers has been developed. The method features the in situ preparation of an active Pd(0)/C catalyst from Pd(OAc)(2) and charcoal, in methanol. The mild reaction conditions (25°C) and low catalyst loading required (0.025 mol%), as well as the absence of contamination of the product by palladium residues (<4 ppb), make this a sustainable, useful process for organic chemists. Alternatively, the protocol can be carried out under microwave activation, to shorten the reaction times, with cyclohexene as the hydrogen source.
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Affiliation(s)
- François-Xavier Felpin
- Université de Bordeaux, CNRS-UMR 5255, Institut des Sciences Moléculaires (ISM), 351, Cours de la Libération, Talence, 33405 France.
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Cala O, Pinaud N, Simon C, Fouquet E, Laguerre M, Dufourc EJ, Pianet I. NMR and molecular modeling of wine tannins binding to saliva proteins: revisiting astringency from molecular and colloidal prospects. FASEB J 2010; 24:4281-90. [PMID: 20605948 DOI: 10.1096/fj.10-158741] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In organoleptic science, the association of tannins to saliva proteins leads to the poorly understood phenomenon of astringency. To decipher this interaction at molecular and colloidal levels, the binding of 4 procyanidin dimers (B1-4) and 1 trimer (C2) to a human saliva proline-rich peptide, IB7(14), was studied. Interactions have been characterized by measuring dissociation constants, sizes of complexes, number, and nature of binding sites using NMR (chemical shift variations, diffusion-ordered spectroscopy, and saturation transfer diffusion). The binding sites were identified using molecular mechanics, and the hydrophilic/hydrophobic nature of the interactions was resolved by calculating the molecular lipophilicity potential within the complexes. The following comprehensive scheme can be proposed: 1) below the tannin critical micelle concentration (CMC), interaction is specific, and the procyanidin anchorage always occurs on the same three IB7(14) sites. The tannin 3-dimensional structure plays a key role in the binding force and in the tannin's ability to act as a bidentate ligand: tannins adopting an extended conformation exhibit higher affinity toward protein and initiate the formation of a network. 2) Above the CMC, after the first specific hydrophilic interaction has taken place, a random hydrophobic stacking occurs between tannins and proteins. The whole process is discussed in the general frame of wine tannins eliciting astringency.
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Affiliation(s)
- Olivier Cala
- Chemistry and Biology of Membranes and Nanoobjects, Université Bordeaux, Pessac, France
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Felpin FX, Miqueu K, Sotiropoulos JM, Fouquet E, Ibarguren O, Laudien J. Room-temperature, ligand- and base-free Heck reactions of aryl diazonium salts at low palladium loading: sustainable preparation of substituted stilbene derivatives. Chemistry 2010; 16:5191-204. [PMID: 20373307 DOI: 10.1002/chem.200903050] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The Pd(OAc)(2)-catalyzed Heck reaction of aryl diazonium salts with 2-arylacrylates led to cis-stilbenes with good to excellent stereoselectivity. The environmentally friendly protocol developed in this work features low palladium loading in technical-grade methanol at room temperature under base-, additive-, and ligand-free conditions. The same protocol applied to simple Heck coupling of aryl diazonium salts with methyl acrylate allows astonishingly low palladium loading, down to 0.005 mol%. The stereoselectivity experimentally observed for the synthesis of cis-stilbenes has been rationalized by DFT calculations. Moreover, the role of methanol in promoting the reaction has been clarified by a computational study.
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Affiliation(s)
- François-Xavier Felpin
- Université de Bordeaux, CNRS-UMR 5255, Institut des Sciences Moléculaires (ISM), 351, Cours de la Libération, Talence, 33405 France.
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Felpin FX, Laudien J, Fouquet E, Zakri C. A Multi-Task Palladium Catalyst Involved in Heck-Reduction-Cyclization Sequences for the Preparation of 4-Benzyl-1,2-dihydroisoquinolin-3-ones: An Unusual Homogeneous-Heterogeneous Sustainable Approach. Synlett 2010. [DOI: 10.1055/s-0029-1219926] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Cala O, Fabre S, Fouquet E, Dufourc EJ, Pianet I. NMR of human saliva protein/wine tannin complexes. Towards deciphering astringency with physico-chemical tools. CR CHIM 2010. [DOI: 10.1016/j.crci.2010.01.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Sakouhi F, Boukhchina S, Absalon C, Fouquet E, Kallel H. Policosanol characterization and accumulation during ripening of Tunisian
Olea europaea
L. fruits. EUR J LIPID SCI TECH 2010. [DOI: 10.1002/ejlt.200900076] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Faouzi Sakouhi
- Laboratoire de Biochimie des Lipides, Département de Biologie, Faculté des Sciences de Tunis, El Manar, Tunisie
| | - Sadok Boukhchina
- Laboratoire de Biochimie des Lipides, Département de Biologie, Faculté des Sciences de Tunis, El Manar, Tunisie
| | - Christelle Absalon
- Centre d'Etude Structurale et d'Analyse des Molécules Organiques, Institut des Sciences Moléculaires, Université de Bordeaux, Bordeaux, France
| | - Eric Fouquet
- Centre d'Etude Structurale et d'Analyse des Molécules Organiques, Institut des Sciences Moléculaires, Université de Bordeaux, Bordeaux, France
| | - Habib Kallel
- Laboratoire de Biochimie des Lipides, Département de Biologie, Faculté des Sciences de Tunis, El Manar, Tunisie
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James D, Escudier JM, Amigues E, Schulz J, Vitry C, Bordenave T, Szlosek-Pinaud M, Fouquet E. A ‘click chemistry’ approach to the efficient synthesis of modified nucleosides and oligonucleotides for PET imaging. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2009.12.120] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lamblin M, Nassar-Hardy L, Hierso JC, Fouquet E, Felpin FX. Recyclable Heterogeneous Palladium Catalysts in Pure Water: Sustainable Developments in Suzuki, Heck, Sonogashira and Tsuji-Trost Reactions. Adv Synth Catal 2010. [DOI: 10.1002/adsc.200900765] [Citation(s) in RCA: 572] [Impact Index Per Article: 40.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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