1
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Schoenthaler M, Waltl L, Hasenoehrl T, Seher D, Lutz A, Aulinger L, Temml V, König S, Siller A, Braun DE, Garscha U, Werz O, Schuster D, Schennach H, Koeberle A, Matuszczak B. Novel thiazolopyridine derivatives of diflapolin as dual sEH/FLAP inhibitors with improved solubility. Bioorg Chem 2023; 139:106685. [PMID: 37418786 DOI: 10.1016/j.bioorg.2023.106685] [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: 05/07/2023] [Revised: 06/12/2023] [Accepted: 06/13/2023] [Indexed: 07/09/2023]
Abstract
Inflammatory responses are orchestrated by a plethora of lipid mediators, and perturbations of their biosynthesis or degradation hinder resolution and lead to uncontrolled inflammation, which contributes to diverse pathologies. Small molecules that induce a switch from pro-inflammatory to anti-inflammatory lipid mediators are considered valuable for the treatment of chronic inflammatory diseases. Commonly used non-steroidal anti-inflammatory drugs (NSAIDs) are afflicted with side effects caused by the inhibition of beneficial prostanoid formation and redirection of arachidonic acid (AA) into alternative pathways. Multi-target inhibitors like diflapolin, the first dual inhibitor of soluble epoxide hydrolase (sEH) and 5-lipoxygenase-activating protein (FLAP), promise improved efficacy and safety but are confronted by poor solubility and bioavailability. Four series of derivatives bearing isomeric thiazolopyridines as bioisosteric replacement of the benzothiazole core and two series additionally containing mono- or diaza-isosteres of the phenylene spacer were designed and synthesized to improve solubility. The combination of thiazolo[5,4-b]pyridine, a pyridinylen spacer and a 3,5-Cl2-substituted terminal phenyl ring (46a) enhances solubility and FLAP antagonism, while preserving sEH inhibition. Moreover, the thiazolo[4,5-c]pyridine derivative 41b, although being a less potent sEH/FLAP inhibitor, additionally decreases thromboxane production in activated human peripheral blood mononuclear cells. We conclude that the introduction of nitrogen, depending on the position, not only enhances solubility and FLAP antagonism (46a), but also represents a valid strategy to expand the scope of application towards inhibition of thromboxane biosynthesis.
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Affiliation(s)
- Martin Schoenthaler
- Institute of Pharmacy, Department of Pharmaceutical Chemistry, Center for Chemistry and Biomedicine, University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria
| | - Lorenz Waltl
- Michael Popp Institute and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Mitterweg 24, A-6020 Innsbruck, Austria
| | - Thomas Hasenoehrl
- Institute of Pharmacy, Department of Pharmaceutical Chemistry, Center for Chemistry and Biomedicine, University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria
| | - David Seher
- Institute of Pharmacy, Department of Pharmaceutical Chemistry, Center for Chemistry and Biomedicine, University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria
| | - Anna Lutz
- Institute of Pharmacy, Department of Pharmaceutical Chemistry, Center for Chemistry and Biomedicine, University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria; Michael Popp Institute and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Mitterweg 24, A-6020 Innsbruck, Austria
| | - Lucia Aulinger
- Institute of Pharmacy, Department of Pharmaceutical Chemistry, Center for Chemistry and Biomedicine, University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria; Michael Popp Institute and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Mitterweg 24, A-6020 Innsbruck, Austria
| | - Veronika Temml
- Institute of Pharmacy, Department of Pharmaceutical and Medicinal Chemistry, Paracelsus Medical University Salzburg, Strubergasse 21, A-5020 Salzburg, Austria
| | - Stefanie König
- Institute of Pharmacy, Department of Pharmaceutical/Medicinal Chemistry, University of Greifswald, Friedrich-Ludwig-Jahn-Straße 17, D-17489 Greifswald, Germany
| | - Anita Siller
- Central Institute for Blood Transfusion and Immunology, Tirol Kliniken GmbH, Anichstraße 35, A-6020 Innsbruck, Austria
| | - Doris Elfriede Braun
- Institute of Pharmacy, Department of Pharmaceutical Technology, Josef-Moeller-Haus, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
| | - Ulrike Garscha
- Institute of Pharmacy, Department of Pharmaceutical/Medicinal Chemistry, University of Greifswald, Friedrich-Ludwig-Jahn-Straße 17, D-17489 Greifswald, Germany
| | - Oliver Werz
- Department of Pharmaceutical/Medicinal Chemistry, Friedrich Schiller University Jena, Philosophenweg 14, D-07743 Jena, Germany
| | - Daniela Schuster
- Institute of Pharmacy, Department of Pharmaceutical and Medicinal Chemistry, Paracelsus Medical University Salzburg, Strubergasse 21, A-5020 Salzburg, Austria
| | - Harald Schennach
- Central Institute for Blood Transfusion and Immunology, Tirol Kliniken GmbH, Anichstraße 35, A-6020 Innsbruck, Austria
| | - Andreas Koeberle
- Michael Popp Institute and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Mitterweg 24, A-6020 Innsbruck, Austria.
| | - Barbara Matuszczak
- Institute of Pharmacy, Department of Pharmaceutical Chemistry, Center for Chemistry and Biomedicine, University of Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria.
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2
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Primera Darwich B, Guijarro N, Cho H, Yao L, Monnier L, Schouwink P, Mensi M, Yum J, Sivula K. Benzodithiophene-Based Spacers for Layered and Quasi-Layered Lead Halide Perovskite Solar Cells. CHEMSUSCHEM 2021; 14:3001-3009. [PMID: 34075712 PMCID: PMC8361775 DOI: 10.1002/cssc.202100992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Indexed: 06/12/2023]
Abstract
Incorporating extended pi-conjugated organic cations in layered lead halide perovskites is a recent trend promising to merge the fields of organic semiconductors and lead halide perovskites. Herein, we integrate benzodithiophene (BDT) into Ruddlesden-Popper (RP) layered and quasi-layered lead iodide thin films (with methylammonium, MA) of the form (BDT)2 MAn-1 Pbn I3n+1 . The importance of tuning the ligand chemical structure is shown as an alkyl chain length of at least six carbon atoms is required to form a photoactive RP (n=1) phase. With N=20 or 100, as prepared in the precursor solution following the formula (BDT)2 MAN-1 PbN I3N+1 , the performance and stability of devices surpassed those with phenylethylammonium (PEA). For N=100, the BDT cation gave a power conversion efficiency of up to 14.7 % vs. 13.7 % with PEA. Transient photocurrent, UV photoelectron spectroscopy, and Fourier transform infrared spectroscopy point to improved charge transport in the device active layer and additional electronic states close to the valence band, suggesting the formation of a Lewis adduct between the BDT and surface iodide vacancies.
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Affiliation(s)
- Barbara Primera Darwich
- Laboratory for Molecular Engineering of Optoelectronic NanomaterialsÉcole Polytechnique Fédérale de Lausanne (EPFL)Station 61015LausanneSwitzerland
| | - Nestor Guijarro
- Laboratory for Molecular Engineering of Optoelectronic NanomaterialsÉcole Polytechnique Fédérale de Lausanne (EPFL)Station 61015LausanneSwitzerland
| | - Han‐Hee Cho
- Laboratory for Molecular Engineering of Optoelectronic NanomaterialsÉcole Polytechnique Fédérale de Lausanne (EPFL)Station 61015LausanneSwitzerland
| | - Liang Yao
- Laboratory for Molecular Engineering of Optoelectronic NanomaterialsÉcole Polytechnique Fédérale de Lausanne (EPFL)Station 61015LausanneSwitzerland
| | - Luc Monnier
- Laboratory for Molecular Engineering of Optoelectronic NanomaterialsÉcole Polytechnique Fédérale de Lausanne (EPFL)Station 61015LausanneSwitzerland
| | - Pascal Schouwink
- Institute of Chemical Sciences and EngineeringÉcole Polytechnique Fédérale de Lausanne (EPFL)Rue de l'Industrie 171951SionSwitzerland
| | - Mounir Mensi
- Institute of Chemical Sciences and EngineeringÉcole Polytechnique Fédérale de Lausanne (EPFL)Rue de l'Industrie 171951SionSwitzerland
| | - Jun‐Ho Yum
- Laboratory for Molecular Engineering of Optoelectronic NanomaterialsÉcole Polytechnique Fédérale de Lausanne (EPFL)Station 61015LausanneSwitzerland
| | - Kevin Sivula
- Laboratory for Molecular Engineering of Optoelectronic NanomaterialsÉcole Polytechnique Fédérale de Lausanne (EPFL)Station 61015LausanneSwitzerland
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3
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Synthesis of Chromeno[3,4- b]piperazines by an Enol-Ugi/Reduction/Cyclization Sequence. Molecules 2021; 26:molecules26051287. [PMID: 33673443 PMCID: PMC7956738 DOI: 10.3390/molecules26051287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 02/23/2021] [Accepted: 02/23/2021] [Indexed: 11/17/2022] Open
Abstract
Keto piperazines and aminocoumarins are privileged building blocks for the construction of geometrically constrained peptides and therefore valuable structures in drug discovery. Combining these two heterocycles provides unique rigid polycyclic peptidomimetics with drug-like properties including many points of diversity that could be modulated to interact with different biological receptors. This work describes an efficient multicomponent approach to condensed chromenopiperazines based on the novel enol-Ugi reaction. Importantly, this strategy involves the first reported post-condensation transformation of an enol-Ugi adduct.
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4
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Metallosupramolecular helices constructed from nickel(II) and multidentate “click” triazole ligands. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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5
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Moreno A, Beng TK. Direct access to vicinally functionalized and N-trifluoroacetylated (bicyclic)ketopiperazines using a readily affordable N-heterocyclic anhydride. Org Biomol Chem 2020; 18:1577-1581. [PMID: 32039416 DOI: 10.1039/d0ob00049c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Functionalized 2-piperazinones play essential roles as conformationally-constrained peptidomimetics by mimicking inverse γ-turns in peptides. Here, we describe an efficient, scalable, stereoselective, modular, and chemoselective annulation protocol between a novel N-trifluoroacetyl anhydride and several reactive partners, including lactim ethers, imidoyl chlorides, aryl aldimines, and 1,3-azadienes, leading to vicinally functionalized (bicyclic) 2-piperazinones.
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Affiliation(s)
- Antonio Moreno
- Department of Chemistry, Central Washington University, Ellensburg, WA 98926, USA.
| | - Timothy K Beng
- Department of Chemistry, Central Washington University, Ellensburg, WA 98926, USA.
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6
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Sevrain N, Volle JN, Pirat JL, Ayad T, Virieux D. Chiral Bisdiphenylphosphine Dioxides Bearing a Bis(triazolyl) Backbone as Promising Lewis Bases for Asymmetric Organocatalysis. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800317] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nicolas Sevrain
- AM2N, Ecole Supérieure de Chimie de Montpellier; Institut Charles Gerhardt - CNRS UMR 5253; 8 rue de l'Ecole Normale 34296 Montpellier CEDEX 5 France
| | - Jean-Noel Volle
- AM2N, Ecole Supérieure de Chimie de Montpellier; Institut Charles Gerhardt - CNRS UMR 5253; 8 rue de l'Ecole Normale 34296 Montpellier CEDEX 5 France
| | - Jean-Luc Pirat
- AM2N, Ecole Supérieure de Chimie de Montpellier; Institut Charles Gerhardt - CNRS UMR 5253; 8 rue de l'Ecole Normale 34296 Montpellier CEDEX 5 France
| | - Tahar Ayad
- AM2N, Ecole Supérieure de Chimie de Montpellier; Institut Charles Gerhardt - CNRS UMR 5253; 8 rue de l'Ecole Normale 34296 Montpellier CEDEX 5 France
- Chimie ParisTech - CNRS; Institut de Recherche de Chimie Paris; PSL Research University; 75005 Paris France
| | - David Virieux
- AM2N, Ecole Supérieure de Chimie de Montpellier; Institut Charles Gerhardt - CNRS UMR 5253; 8 rue de l'Ecole Normale 34296 Montpellier CEDEX 5 France
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7
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Wu C, Zhao F, Du Y, Zhao L, Chen L, Wang J, Liu H. Highly selective intramolecular addition of C–N and S–N bonds to alkynes catalyzed by palladium: a practical access to two distinct functional indoles. RSC Adv 2016. [DOI: 10.1039/c6ra15945a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Palladium-catalyzed highly selective intramolecular addition of C–N and S–N bonds to alkynes has been achieved, and two distinct kinds of functional indoles were synthesized rapidly from the same set of substrates in a catalyst-controlled manner.
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Affiliation(s)
- Chenglin Wu
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- China
- CAS Key Laboratory of Receptor Research
| | - Fei Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- People's Republic of China
| | - Yonglei Du
- CAS Key Laboratory of Receptor Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- P. R. China
| | - Liang Zhao
- CAS Key Laboratory of Receptor Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- P. R. China
| | - Liang Chen
- CAS Key Laboratory of Receptor Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- P. R. China
| | - Jiang Wang
- CAS Key Laboratory of Receptor Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- P. R. China
| | - Hong Liu
- School of Pharmacy
- China Pharmaceutical University
- Nanjing 210009
- China
- CAS Key Laboratory of Receptor Research
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8
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Smoleń M, Kośnik W, Loska R, Gajda R, Malińska M, Woźniak K, Grela K. Synthesis and catalytic activity of ruthenium indenylidene complexes bearing unsymmetrical NHC containing a heteroaromatic moiety. RSC Adv 2016. [DOI: 10.1039/c6ra18210k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
New ruthenium(ii) indenylidene catalysts were synthesized and used in olefin metathesis reactions in toluene under air, leading to high conversions and good selectivities.
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Affiliation(s)
- Michał Smoleń
- Biological and Chemical Research Centre
- Faculty of Chemistry
- University of Warsaw
- 02-089 Warszawa
- Poland
| | - Wioletta Kośnik
- Biological and Chemical Research Centre
- Faculty of Chemistry
- University of Warsaw
- 02-089 Warszawa
- Poland
| | - Rafał Loska
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Roman Gajda
- Biological and Chemical Research Centre
- Faculty of Chemistry
- University of Warsaw
- 02-089 Warszawa
- Poland
| | - Maura Malińska
- Biological and Chemical Research Centre
- Faculty of Chemistry
- University of Warsaw
- 02-089 Warszawa
- Poland
| | - Krzysztof Woźniak
- Biological and Chemical Research Centre
- Faculty of Chemistry
- University of Warsaw
- 02-089 Warszawa
- Poland
| | - Karol Grela
- Biological and Chemical Research Centre
- Faculty of Chemistry
- University of Warsaw
- 02-089 Warszawa
- Poland
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9
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Washington AZ, Tapadar S, George A, Oyelere AK. Exploiting translational stalling peptides in an effort to extend azithromycin interaction within the prokaryotic ribosome nascent peptide exit tunnel. Bioorg Med Chem 2015; 23:5198-209. [PMID: 26037612 DOI: 10.1016/j.bmc.2015.04.078] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Revised: 04/18/2015] [Accepted: 04/29/2015] [Indexed: 10/23/2022]
Abstract
The ribosome is the primary protein synthesis machine in the cell and is a target for treatment of a variety of diseases including bacterial infection and cancer. The ribosomal peptide exit tunnel, the route of egress for the nascent peptide, is an inviting site for drug design. Toward a rational engagement of the nascent peptide components for the design of small molecule inhibitors of ribosome function, we designed and disclosed herein a set of N-10 indole functionalized azithromycin analogs. The indole moiety of these compounds is designed to mimic the translation stalling interaction of SecM W155 side-chain with the prokaryotic (Escherichia coli) ribosome A751 residue. Many of these N-10 functionalized compounds have enhanced translation inhibition activities against E. coli ribosome relative to azithromycin while a subset inhibited the growth of representative susceptible bacteria strains to about the same extent as azithromycin. Moreover, the inclusion of bovine serum in the bacterial growth media enhanced the anti-bacterial potency of the N-10 functionalized azithromycin analogs by as high as 10-fold.
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Affiliation(s)
- Arren Z Washington
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA
| | - Subhasish Tapadar
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA
| | - Alex George
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA
| | - Adegboyega K Oyelere
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA; Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA.
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10
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Whiting E, Lanning ME, Scheenstra JA, Fletcher S. Chromatography-Free Entry to Substituted Salicylonitriles: Mitsunobu-Triggered Domino Reactions of Salicylaldoximes. J Org Chem 2014; 80:1229-34. [DOI: 10.1021/jo502396u] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ellis Whiting
- School
of Chemistry, University of Cardiff, Cardiff CF10 3AT, U.K
| | - Maryanna E. Lanning
- Department
of Pharmaceutical Sciences, University of Maryland School of Pharmacy, 20 N. Pine Street, Baltimore, Maryland 21201, United States
| | - Jacob A. Scheenstra
- Department
of Pharmaceutical Sciences, University of Maryland School of Pharmacy, 20 N. Pine Street, Baltimore, Maryland 21201, United States
| | - Steven Fletcher
- Department
of Pharmaceutical Sciences, University of Maryland School of Pharmacy, 20 N. Pine Street, Baltimore, Maryland 21201, United States
- University of Maryland Greenebaum Cancer Center, 22 S. Greene Street, Baltimore, Maryland 21201, United States
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11
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Gigant N, Honraedt A, Gras E, Gillaizeau I. Efficient Cross-Coupling of Dioxazaborocanes with α-Phosphate Enamides. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402927] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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12
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Gigant N, Habib S, Medoc M, Goekjian PG, Gueyrard D, Gillaizeau I. Synthesis ofexo-Enamides from Protected Lactams Using a Modified Julia Olefination Reaction: Application to the Synthesis of Spiroaminal Fragments. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402681] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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13
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14
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Wu M, Ma D. Total Syntheses of (±)-Spiroquinazoline, (−)-Alantryphenone, (+)-Lapatin A, and (−)-Quinadoline B. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303893] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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15
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Wu M, Ma D. Total Syntheses of (±)-Spiroquinazoline, (−)-Alantryphenone, (+)-Lapatin A, and (−)-Quinadoline B. Angew Chem Int Ed Engl 2013; 52:9759-62. [DOI: 10.1002/anie.201303893] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 06/17/2013] [Indexed: 11/08/2022]
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16
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Yokosaka T, Nakayama H, Nemoto T, Hamada Y. Acid-promoted Cascade Cyclization to Produce Fused-polycyclic Indole Derivatives. Org Lett 2013; 15:2978-81. [DOI: 10.1021/ol401128h] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Takuya Yokosaka
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Hiroki Nakayama
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8675, Japan
| | - Yasumasa Hamada
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba, 260-8675, Japan
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17
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de Carné-Carnavalet B, Meyer C, Cossy J, Folléas B, Brayer JL, Demoute JP. A Sonogashira Cross-Coupling/5-exo-dig Cyclization/Ionic Hydrogenation Sequence: Synthesis of 4-Substituted 3-Azabicyclo[3.1.0]hexan-2-ones from 2-Iodocyclopropanecarboxamides. J Org Chem 2013; 78:5794-9. [DOI: 10.1021/jo400713u] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Benoît de Carné-Carnavalet
- Laboratoire de Chimie Organique, ESPCI ParisTech, CNRS (UMR7084), 10 rue Vauquelin 75231
Paris Cedex 05, France
| | - Christophe Meyer
- Laboratoire de Chimie Organique, ESPCI ParisTech, CNRS (UMR7084), 10 rue Vauquelin 75231
Paris Cedex 05, France
| | - Janine Cossy
- Laboratoire de Chimie Organique, ESPCI ParisTech, CNRS (UMR7084), 10 rue Vauquelin 75231
Paris Cedex 05, France
| | - Benoît Folléas
- DiverChim, 6 rue du Noyer, ZAC du Moulin,
95700 Roissy-en-France, France
| | - Jean-Louis Brayer
- DiverChim, 6 rue du Noyer, ZAC du Moulin,
95700 Roissy-en-France, France
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18
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Direct alkenylation of non-aromatic enamides via palladium-catalyzed oxidative coupling: Synthetic developments and applications. CR CHIM 2013. [DOI: 10.1016/j.crci.2013.02.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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19
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Gigant N, Chausset-Boissarie L, Gillaizeau I. Direct Site-Selective Arylation of Enamides via a Decarboxylative Cross-Coupling Reaction. Org Lett 2013; 15:816-9. [DOI: 10.1021/ol303497q] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Nicolas Gigant
- Institut de Chimie Organique et Analytique, UMR 7311 CNRS, rue de Chartres, Université d’Orléans, F-45067 Orléans Cedex 2, France
| | - Laëtitia Chausset-Boissarie
- Institut de Chimie Organique et Analytique, UMR 7311 CNRS, rue de Chartres, Université d’Orléans, F-45067 Orléans Cedex 2, France
| | - Isabelle Gillaizeau
- Institut de Chimie Organique et Analytique, UMR 7311 CNRS, rue de Chartres, Université d’Orléans, F-45067 Orléans Cedex 2, France
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20
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Gigant N, Chausset-Boissarie L, Belhomme MC, Poisson T, Pannecoucke X, Gillaizeau I. Copper-catalyzed direct arylation of cyclic enamides using diaryliodonium salts. Org Lett 2012; 15:278-81. [PMID: 23272978 DOI: 10.1021/ol303400s] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A convenient method for the copper(II)-catalyzed direct arylation of cyclic and nonaromatic enamides using diaryliodonium salts has been developed. The reaction demonstrates large functional group tolerance, good yields, and total regioselectivity with a C(3)-functionalization. The synthetic potential of this coupling was explored by using a range of readily accessible diaryliodonium salts and enamides.
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Affiliation(s)
- Nicolas Gigant
- Institut de Chimie Organique et Analytique, UMR 7311 CNRS, rue de Chartres, Université d'Orléans, F-45067 Orléans Cedex 2, France
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21
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Gigant N, Gillaizeau I. Construction of nitrogen-fused tetrahydroquinolines via a domino reaction. Org Lett 2012; 14:4622-5. [PMID: 22913435 DOI: 10.1021/ol3020732] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient domino approach for the diastereoselective synthesis of polyfunctionalized nitrogen-fused tetrahydroquinoline frameworks under mild conditions has been developed. The scope and limitation of this transformation were investigated by using a range of readily accessible enamides and benzyl azides. This method is also applicable to the formation of 2,3-functionalized enamides.
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Affiliation(s)
- Nicolas Gigant
- Institut de Chimie Organique et Analytique, Université d'Orléans, UMR 7311 CNRS, rue de Chartres, F-45067 Orléans Cedex 2, France
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Gigant N, Gillaizeau I. Palladium(II)-catalyzed direct alkenylation of nonaromatic enamides. Org Lett 2012; 14:3304-7. [PMID: 22694149 DOI: 10.1021/ol301249n] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A mild and efficient method for the direct alkenylation of nonaromatic enamides was achieved through a palladium(II)-catalyzed C-H functionalization. The reaction scope includes cyclic and acyclic enamides and a range of activated alkenes. This approach represents the first successful direct C(3)-functionalization of nonaromatic cyclic enamides.
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Affiliation(s)
- Nicolas Gigant
- Institut de Chimie Organique et Analytique, UMR 7311 CNRS, rue de Chartres, Université d'Orléans, F-45067 Orléans Cedex 2, France
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