1
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Saladrigas M, Gómez-Bengoa E, Bonjoch J, Bradshaw B. Four-Step Synthesis of (-)-4-epi-Presilphiperfolan-8α-ol by Intramolecular Iron Hydride Atom Transfer-Mediated Ketone-Alkene Coupling and Studies to Access trans-Hydrindanols with a Botryane Scaffold. Chemistry 2023; 29:e202203286. [PMID: 36537992 DOI: 10.1002/chem.202203286] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/20/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
From an (R)-(+)-pulegone-derived building block that incorporates the stereo-defined tertiary carbon bearing a methyl group, as found in the targeted sesquiterpenoid, a four-step synthesis of (-)-4-epi-presilphiperfolan-8-α-ol was achieved. The key processes involved are a ring-closing metathesis leading to a bridged alkene-tethered ketone and its subsequent FeIII -mediated metal-hydride atom transfer (MHAT) transannular cyclization. This synthetic method, implying an irreversible addition of a carbon-centered radical upon a ketone by means of a hydrogen atom transfer upon the alkoxy radical intermediate, was also applied in the synthesis of trans-fused hydrindanols structurally related to botrydial compounds.
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Affiliation(s)
- Mar Saladrigas
- Laboratori de Química Orgànica, Facultat de Farmàcia, IBUB, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028, Barcelona, Spain
| | - Enrique Gómez-Bengoa
- Departamento de Química Orgánica I, Universidad del País Vasco, Manuel Lardizábal 3, 20018, San Sebastián, Spain
| | - Josep Bonjoch
- Laboratori de Química Orgànica, Facultat de Farmàcia, IBUB, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028, Barcelona, Spain
| | - Ben Bradshaw
- Laboratori de Química Orgànica, Facultat de Farmàcia, IBUB, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028, Barcelona, Spain
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2
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Kreibich M, Gemander M, Peter D, Yadav DB, de Koning CB, Fernandes MA, Green IR, van Otterlo WAL, Brückner R. 6,7‐Benzotropolone Syntheses Based on Ring‐Closing Metatheses and Four‐Electron Oxidations. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000256] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Michael Kreibich
- Institut für Organische Chemie Albert‐Ludwigs‐Universität Albertstraße 21 79104 Freiburg Germany
| | - Manuel Gemander
- Institut für Organische Chemie Albert‐Ludwigs‐Universität Albertstraße 21 79104 Freiburg Germany
| | - David Peter
- Institut für Organische Chemie Albert‐Ludwigs‐Universität Albertstraße 21 79104 Freiburg Germany
| | - Dharmendra B. Yadav
- Molecular Sciences Institute School of Chemistry University of the Witwatersrand PO Wits 2050 Johannesburg South Africa
| | - Charles B. de Koning
- Molecular Sciences Institute School of Chemistry University of the Witwatersrand PO Wits 2050 Johannesburg South Africa
| | - Manuel A. Fernandes
- Molecular Sciences Institute School of Chemistry University of the Witwatersrand PO Wits 2050 Johannesburg South Africa
| | - Ivan R. Green
- Department of Chemistry and Polymer Science Stellenbosch University Private Bag X1, Matieland 7602 Stellenbosch Western Cape South Africa
| | - Willem A. L. van Otterlo
- Molecular Sciences Institute School of Chemistry University of the Witwatersrand PO Wits 2050 Johannesburg South Africa
- Department of Chemistry and Polymer Science Stellenbosch University Private Bag X1, Matieland 7602 Stellenbosch Western Cape South Africa
| | - Reinhard Brückner
- Institut für Organische Chemie Albert‐Ludwigs‐Universität Albertstraße 21 79104 Freiburg Germany
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3
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Welford AJ, Caldwell JJ, Liu M, Richards M, Brown N, Lomas C, Tizzard GJ, Pitak MB, Coles SJ, Eccles SA, Raynaud FI, Collins I. Synthesis and Evaluation of a 2,11-Cembranoid-Inspired Library. Chemistry 2016; 22:5657-64. [PMID: 26929153 PMCID: PMC4869678 DOI: 10.1002/chem.201505093] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Indexed: 01/22/2023]
Abstract
The 2,11-cembranoid family of natural products has been used as inspiration for the synthesis of a structurally simplified, functionally diverse library of octahydroisobenzofuran-based compounds designed to augment a typical medicinal chemistry library screen. Ring-closing metathesis, lactonisation and SmI2 -mediated methods were exemplified and applied to the installation of a third ring to mimic the nine-membered ring of the 2,11-cembranoids. The library was assessed for aqueous solubility and permeability, with a chemical-space analysis performed for comparison to the family of cembranoid natural products and a sample set of a screening library. Preliminary investigations in cancer cells showed that the simpler scaffolds could recapitulate the reported anti-migratory activity of the natural products.
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Affiliation(s)
- Amanda J Welford
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - John J Caldwell
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK.
| | - Manjuan Liu
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Meirion Richards
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Nathan Brown
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Cara Lomas
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Graham J Tizzard
- UK National Crystallography Service, University of Southampton, Southampton, SO17 1BJ, UK
| | - Mateusz B Pitak
- UK National Crystallography Service, University of Southampton, Southampton, SO17 1BJ, UK
| | - Simon J Coles
- UK National Crystallography Service, University of Southampton, Southampton, SO17 1BJ, UK
| | - Suzanne A Eccles
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Florence I Raynaud
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Ian Collins
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
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4
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Wisse P, Gold H, Mirzaian M, Ferraz MJ, Lutteke G, van den Berg RJBHN, van den Elst H, Lugtenburg J, van der Marel GA, Aerts JMFG, Codée JDC, Overkleeft HS. Synthesis of a Panel of Carbon-13-Labelled (Glyco)Sphingolipids. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500025] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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5
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Miller B, Mao S, Rosenker KMG, Pierce JG, Wipf P. Synthesis of a library of tricyclic azepinoisoindolinones. Beilstein J Org Chem 2012; 8:1091-7. [PMID: 23019435 PMCID: PMC3458725 DOI: 10.3762/bjoc.8.120] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Accepted: 06/26/2012] [Indexed: 11/23/2022] Open
Abstract
Hydrozirconation of 1-hexyne, the addition to in situ prepared N-acyliminium species, and ring-closing metathesis (RCM) were key steps in the preparation of a tricyclic isoindolinone scaffold. An unusual alkene isomerization process during the RCM was identified and studied in some detail. Chemical diversification for library synthesis was achieved by a subsequent alkene epoxidation and zinc-mediated aminolysis reaction. The resulting library products provided selective hits among a large number of high-throughput screens reported in PubChem, thus illustrating the utility of the novel scaffold.
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Affiliation(s)
- Bettina Miller
- Center for Chemical Methodologies & Library Development (CMLD), Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, USA
| | - Shuli Mao
- Center for Chemical Methodologies & Library Development (CMLD), Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, USA
| | - Kara M George Rosenker
- Center for Chemical Methodologies & Library Development (CMLD), Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, USA
| | - Joshua G Pierce
- Center for Chemical Methodologies & Library Development (CMLD), Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, USA
| | - Peter Wipf
- Center for Chemical Methodologies & Library Development (CMLD), Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, USA
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6
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Larsen CR, Grotjahn DB. Stereoselective Alkene Isomerization over One Position. J Am Chem Soc 2012; 134:10357-60. [DOI: 10.1021/ja3036477] [Citation(s) in RCA: 149] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Casey R. Larsen
- Department of Chemistry
and Biochemistry, San Diego State University, San Diego, California 92182-1030,
United States
| | - Douglas B. Grotjahn
- Department of Chemistry
and Biochemistry, San Diego State University, San Diego, California 92182-1030,
United States
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7
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Selective Alkene Metathesis in the Total Synthesis of Complex Natural Product. Top Curr Chem (Cham) 2012; 327:163-96. [DOI: 10.1007/128_2012_318] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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8
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Hanson PR, Chegondi R, Nguyen J, Thomas CD, Waetzig JD, Whitehead A. Total synthesis of dolabelide C: a phosphate-mediated approach. J Org Chem 2011; 76:4358-70. [PMID: 21528846 DOI: 10.1021/jo2003506] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The first synthesis of dolabelide C (1), a cytotoxic marine macrolide, is reported utilizing a phosphate tether-mediated approach. Bicyclic phosphates (S,S,S(P))-5 and (R,R,R(P))-5 serve as the central building blocks for the construction of two major 1,3-anti-diol subunits in 1 through selective cleavage pathways, regioselective olefin reduction, and cross-metathesis. Overall, phosphate-mediated processes provided copious amounts of both major subunits allowing for a detailed RCM macrocyclization study to the 24-membered macrolactone 1.
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Affiliation(s)
- Paul R Hanson
- Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, United States.
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9
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Michalak M, Wicha J. Application of a metathesis reaction in the synthesis of sterically congested medium-sized rings. A direct ring closing versus a double bond migration–ring closing process. Org Biomol Chem 2011; 9:3439-46. [DOI: 10.1039/c1ob05086a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Dowling MS, Vanderwal CD. Ring-Closing Metathesis of Allylsilanes As a Flexible Strategy toward Cyclic Terpenes. Short Syntheses of Teucladiol, Isoteucladiol, Poitediol, and Dactylol and an Attempted Synthesis of Caryophyllene. J Org Chem 2010; 75:6908-22. [DOI: 10.1021/jo101439h] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthew S. Dowling
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, California 92697-2025
| | - Christopher D. Vanderwal
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, California 92697-2025
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11
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Construction of eight-membered carbocycles with trisubstituted double bonds using the ring closing metathesis reaction. Molecules 2010; 15:4242-60. [PMID: 20657438 PMCID: PMC6264272 DOI: 10.3390/molecules15064242] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2010] [Revised: 06/07/2010] [Accepted: 06/10/2010] [Indexed: 11/17/2022] Open
Abstract
Medium sized carbocycles are particularly difficult to synthesize. Ring closing metathesis reactions (RCM) have recently been applied to construct eight-membered carbocycles, but trisubstituted double bonds in the eight-membered rings are more difficult to produce using RCM reactions. In this review, model examples and our own results are cited and the importance of the preparation of suitably designed precursors is discussed. Examples of RCM reactions used in the total synthesis of natural products are also outlined.
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12
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Gauthier D, Lindhardt AT, Olsen EPK, Overgaard J, Skrydstrup T. In Situ Generated Bulky Palladium Hydride Complexes as Catalysts for the Efficient Isomerization of Olefins. Selective Transformation of Terminal Alkenes to 2-Alkenes. J Am Chem Soc 2010; 132:7998-8009. [DOI: 10.1021/ja9108424] [Citation(s) in RCA: 178] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Delphine Gauthier
- The Center for Insoluble Protein Structures (inSPIN), Department of Chemistry and the Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
| | - Anders T. Lindhardt
- The Center for Insoluble Protein Structures (inSPIN), Department of Chemistry and the Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
| | - Esben P. K. Olsen
- The Center for Insoluble Protein Structures (inSPIN), Department of Chemistry and the Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
| | - Jacob Overgaard
- The Center for Insoluble Protein Structures (inSPIN), Department of Chemistry and the Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
| | - Troels Skrydstrup
- The Center for Insoluble Protein Structures (inSPIN), Department of Chemistry and the Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
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13
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Ellis JM, Crimmins MT. Strategies for the total synthesis of C2-C11 cyclized cembranoids. Chem Rev 2009; 108:5278-98. [PMID: 18942794 DOI: 10.1021/cr078117u] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J Michael Ellis
- Department of Chemistry, Venable and Kenan Laboratories of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, USA
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14
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Corminboeuf O, Overman LE, Pennington LD. A unified strategy for enantioselective total synthesis of cladiellin and briarellin diterpenes: total synthesis of briarellins E and F and the putative structure of alcyonin and revision of its structure assignment. J Org Chem 2009; 74:5458-70. [PMID: 19534538 PMCID: PMC2744073 DOI: 10.1021/jo9010156] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Enantioselective total syntheses of briarellin E (12) and briarellin F (13), as well as the structure originally proposed for the cladiellin diterpene alcyonin (10), have been realized. Comparison of the spectral data for synthetic 10, natural alcyonin, cladiellisin (33), and cladiellaperoxide (34), as well as chemical transformations of 10 and natural alcyonin, suggest that the structure of this coral metabolite is allylic peroxide 11. The unified approach detailed herein can be used to access both C4-deoxygenated and C4-oxygenated cladiellins and briarellins. The central step in these syntheses is acid-promoted condensation of (Z)-alpha,beta-unsaturated aldehydes 17 with cyclohexadienyl diols 18 to form intermediates 16 incorporating the hexahydroisobenzofuran core and five stereocenters of these marine diterpenes (Scheme 1 ).
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Affiliation(s)
| | - Larry E. Overman
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, California 92697-2025
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15
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Affiliation(s)
- Matthew J. Campbell
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290
| | - Jeffrey S. Johnson
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290
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16
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Affiliation(s)
- Sebastien Monfette
- Department of Chemistry and Centre for Catalysis Research & Innovation, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada
| | - Deryn E. Fogg
- Department of Chemistry and Centre for Catalysis Research & Innovation, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada
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17
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Studies toward the total synthesis of YW3699, a sesterterpenoid GPI biosynthesis inhibitor: preparation of the tri-substituted cyclooctene ring using the RCM reaction. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.02.163] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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Tori M, Mizutani R, Miki T, Nakashima K, Sono M. Trisubstituted Double Bond in the Cyclooctene Ring. Preparation Using the RCM Reaction. HETEROCYCLES 2009. [DOI: 10.3987/com-09-11720] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Becker J, Bergander K, Fröhlich R, Hoppe D. Asymmetric Total Synthesis and X-Ray Crystal Structure of the Cytotoxic Marine Diterpene (+)-Vigulariol. Angew Chem Int Ed Engl 2008; 47:1654-7. [DOI: 10.1002/anie.200704678] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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20
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Becker J, Bergander K, Fröhlich R, Hoppe D. Asymmetrische Totalsynthese und Festkörperstruktur des marinen cytotoxischen Diterpens (+)-Vigulariol. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200704678] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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21
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Negishi EI. Transition Metal-Catalyzed Organometallic Reactions that Have Revolutionized Organic Synthesis. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2007. [DOI: 10.1246/bcsj.80.233] [Citation(s) in RCA: 220] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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22
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Zeng X, Wei X, Farina V, Napolitano E, Xu Y, Zhang L, Haddad N, Yee NK, Grinberg N, Shen S, Senanayake CH. Epimerization Reaction of a Substituted Vinylcyclopropane Catalyzed by Ruthenium Carbenes: Mechanistic Analysis. J Org Chem 2006; 71:8864-75. [PMID: 17081017 DOI: 10.1021/jo061587o] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel ruthenium carbene-catalyzed epimerization of vinylcyclopropanes is reported. The reaction rate strongly depends on the presence of ruthenium ligands in solution. When the first-generation Grubbs catalyst is employed, a 5.3:1 equilibrium ratio of epimers is established quickly, but when a first-generation Hoveyda catalyst is employed, epimerization is observed only if an additional phosphine or nitrogen ligand is added. NMR and kinetic studies suggest that the isomerization reaction occurs through the intermediacy of a ruthenacyclopentene. The observation suggests that cyclopropylmethylidene ruthenium carbenes of synthetic utility may be accessible via ruthenacyclopentenes obtained via other routes.
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Affiliation(s)
- Xingzhong Zeng
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, USA
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23
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Abstract
With the exception of palladium-catalyzed cross-couplings, no other group of reactions has had such a profound impact on the formation of carbon-carbon bonds and the art of total synthesis in the last quarter of a century than the metathesis reactions of olefins, enynes, and alkynes. Herein, we highlight a number of selected examples of total syntheses in which such processes played a crucial role and which imparted to these endeavors certain elements of novelty, elegance, and efficiency. Judging from their short but impressive history, the influence of these reactions in chemical synthesis is destined to increase.
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Affiliation(s)
- K C Nicolaou
- Department of Chemistry and Skaggs Institute for Chemical Biology, Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
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24
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Virolleaud MA, Menant C, Fenet B, Piva O. Total and formal enantioselective synthesis of lyngbic acid and hermitamides A and B. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.05.078] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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25
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Ring closing metathesis employing organometallic substrates and the templated synthesis of macrocycles. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.molcata.2006.01.071] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Clark JS. Construction of fused polycyclic ethers by strategies involving ring-closing metathesis. Chem Commun (Camb) 2006:3571-81. [PMID: 17047770 DOI: 10.1039/b601839d] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Large fused polycyclic ether natural products of marine origin are some of the most complex and formidable synthetic targets found in Nature, and they continue to fascinate and inspire those engaged in target-directed synthesis and the development of new synthetic methods. Novel strategies for the rapid and stereoselective assembly of fused polyethers have been devised in which ring-closing metathesis reactions are used to accomplish cyclic ether construction. Two-directional and iterative ring construction approaches involving ring-closing metathesis are being employed to assemble polyether sequences found in marine natural products such as the ciguatoxins and gambieric acids.
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Affiliation(s)
- J Stephen Clark
- School of Chemistry, University of Nottingham, University Park, Nottingham, UK NG7 2RD.
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27
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28
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Evanno L, Nay B, Bodo B. Unexpected Dehydrogenation Products in the Furan Series Arising from Ruthenium‐Catalyzed 4‐Oxo‐1,6‐enyne Metathesis. SYNTHETIC COMMUN 2005. [DOI: 10.1081/scc-200058011] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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29
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Chuchuryukin A, Chase P, Dijkstra H, Suijkerbuijk B, Mills A, Spek A, van?Klink G, van?Koten G. General Approach for Template-Directed Synthesis of Macroheterocycles by Ring-Closing Metathesis (RCM). Adv Synth Catal 2005. [DOI: 10.1002/adsc.200404282] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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30
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Braddock DC, Cansell G, Hermitage SA, White AJ. An asymmetric synthesis of enantiopure chair and twist trans-cyclooctene isomers. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.tetasy.2004.07.036] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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31
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Morales CA, Layton ME, Shair MD. Synthesis of (-)-longithorone A: using organic synthesis to probe a proposed biosynthesis. Proc Natl Acad Sci U S A 2004; 101:12036-41. [PMID: 15190180 PMCID: PMC514430 DOI: 10.1073/pnas.0401952101] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
We present a full report of our enantioselective synthesis of (-)-longithorone A (1). The synthesis was designed to test the feasibility of the biosynthetic proposal for 1 put forward by Schmitz involving intermolecular and transannular Diels-Alder reactions of two [12]-paracyclophane quinones. We have found that if the biosynthesis does involve these two Diels-Alder reactions, the intermolecular Diels-Alder reaction likely occurs before the transannular cycloaddition. The intermolecular Diels-Alder precursors, [12]-paracyclophanes 38, 49, 59, and 60, were prepared atropselectively, providing examples of ene-yne metathesis macrocyclization. The 1,3-disubstituted dienes produced from the macrocyclizations represent a previously unreported substitution pattern for intramolecular ene-yne metathesis. Protected benzylic hydroxyl stereocenters were used as removable atropisomer control elements and were installed by using a highly enantioselective vinylzinc addition to electron-rich benzaldehydes 26 and 27.
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Affiliation(s)
- Carl A Morales
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA
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32
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Electrophilic selenocyclization in 2-ene-1,5-diol systems: unexpected oxetane vs. tetrahydrofuran formation. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)01134-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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33
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Peczuh MW, Snyder NL. Carbohydrate-based oxepines: ring expanded glycals for the synthesis of septanose saccharides. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(03)00849-9] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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34
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Lehman SE, Schwendeman JE, O'Donnell PM, Wagener KB. Olefin isomerization promoted by olefin metathesis catalysts. Inorganica Chim Acta 2003. [DOI: 10.1016/s0020-1693(02)01307-5] [Citation(s) in RCA: 104] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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35
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Arisawa M, Terada Y, Nakagawa M, Nishida A. Selective isomerization of a terminal olefin catalyzed by a ruthenium complex: the synthesis of indoles through ring-closing metathesis. Angew Chem Int Ed Engl 2002; 41:4732-4. [PMID: 12481341 DOI: 10.1002/anie.200290031] [Citation(s) in RCA: 168] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mitsuhiro Arisawa
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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36
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Arisawa M, Terada Y, Nakagawa M, Nishida A. Selective Isomerization of a Terminal Olefin Catalyzed by a Ruthenium Complex: The Synthesis of Indoles through Ring-Closing Metathesis. Angew Chem Int Ed Engl 2002. [DOI: 10.1002/ange.200290030] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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37
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Sutton AE, Seigal BA, Finnegan DF, Snapper ML. New tandem catalysis: preparation of cyclic enol ethers through a ruthenium-catalyzed ring-closing metathesis-olefin isomerization sequence. J Am Chem Soc 2002; 124:13390-1. [PMID: 12418884 DOI: 10.1021/ja028044q] [Citation(s) in RCA: 237] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tandem reactions that proceed with a single metal catalyst precursor offer novel opportunities for developing efficient new reaction sequences. In this regard, reaction conditions have been identified that allows for a tandem ring-closing metathesis-olefin isomerization sequence catalyzed by a common ruthenium precursor. Specifically, the tandem process generates cyclic enol ethers from a variety of readily available acyclic dienes in a single reaction vessel using Grubbs' ruthenium alkylidene.
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Affiliation(s)
- Amanda E Sutton
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA
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38
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Abstract
The structural designation A originally made by Sharma and Alam to sclerophytin A was considered to be ambiguous and so notably strained relative to B that the latter was targeted for de novo synthesis (Scheme 1). Our two successful routes began with (5S)-(d-menthyloxy)-2(5H)-furanone and involved the application of cycloaddition, Claisen ring expansion, transannular oxymercuration, and 1,2-carbonyl transposition tactics to arrive at B. It was immediately apparent from polarity considerations and spectroscopic data that the antileukemic marine metabolite in question was in need of more deep-seated structural revision. Following close re-examination of an acquired authentic sample by advanced NMR techniques, the strong inference was made that sclerophytin A actually lacked a second oxygen bridge and was in reality the triol C. This conclusion was unequivocally confirmed by diverting an advanced intermediate generated earlier into a short sequence beginning with regiocontrolled dihydroxylation and terminating with configurational inversion at the secondary carbinol center. The status of other members of this series is also presented.
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Affiliation(s)
- L A Paquette
- Evans Chemical Laboratories, The Ohio State University, Columbus 43210, USA.
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39
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Vasbinder MM, Miller SJ. Synthesis of the pro-gly dipeptide alkene isostere using olefin cross-metathesis. J Org Chem 2002; 67:6240-2. [PMID: 12182670 DOI: 10.1021/jo025888j] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An approach to the synthesis of dipeptide olefin isosteres using intermolecular olefin cross-metathesis is presented. In particular, a synthesis of the Pro-Gly isostere (1) is reported. Conversion of N-BOC-proline into the corresponding vinyl-substituted carbamate provides the N-terminal cross-metathesis partner (2). Methyl 3-butenoate (3) is employed as the C-terminal component. Treatment of the two partners in an optimized molar ratio affords the cross product 1 (83% yield). Three other examples are demonstrated to evaluate the potential of the approach.
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Affiliation(s)
- Melissa M Vasbinder
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467-3860, USA
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40
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41
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42
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Ruthenium carbene complexes with N,N'-bis(mesityl)imidazol-2-ylidene ligands: RCM catalysts of extended scope. J Org Chem 2000; 65:2204-7. [PMID: 10774047 DOI: 10.1021/jo9918504] [Citation(s) in RCA: 378] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The ruthenium carbene complexes 3a,b bearing imidazol-2-ylidene ligands constitute excellent precatalysts for ring-closing metathesis (RCM) reactions allowing the formation of tri- and tetrasubstituted cycloalkenes. They also apply to annulations that are beyond the scope of the standard Grubbs carbene 1 as well as to ring-closing reactions of acrylic acid derivatives even if the resulting alpha,beta-unsaturated lactones (or lactams) are tri- or tetrasubstituted. The reactivity of 3a was found to be highly dependent on the reaction medium: particularly high reaction rates are observed in toluene, although this solvent also leads to an increased tendency of the catalyst to isomerize the double bonds of the substrates.
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44
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Paquette LA, Tae J, Arrington MP, Sadoun AH. Enantioselective Double Michael Addition/Cyclization with an Oxygen-Centered Nucleophile as the First Step in a Concise Synthesis of Natural (+)-Asteriscanolide. J Am Chem Soc 2000. [DOI: 10.1021/ja994053w] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Leo A. Paquette
- Contribution from the Evans Chemical Laboratories, The Ohio State University, Columbus, Ohio 43210
| | - Jinsung Tae
- Contribution from the Evans Chemical Laboratories, The Ohio State University, Columbus, Ohio 43210
| | - Mark P. Arrington
- Contribution from the Evans Chemical Laboratories, The Ohio State University, Columbus, Ohio 43210
| | - Aladin H. Sadoun
- Contribution from the Evans Chemical Laboratories, The Ohio State University, Columbus, Ohio 43210
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45
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Tori M, Nakashima K, Ito R, Sono M. Olefin Metathesis Reactions of Some Aromatic Dienes with ortho- and meta- Disubstitution. Formation of 10-, 12-, 14-, and 17-Membered Cyclic Compounds and Isomerization of an Allylic Alcohol. HETEROCYCLES 2000. [DOI: 10.3987/com-99-8754] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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46
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Synthesis of sub-units of marine polycyclic ethers by ring-closing metathesis and hydroboration of enol ethers. Tetrahedron 1999. [DOI: 10.1016/s0040-4020(99)00303-8] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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47
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A tripartite asymmetric allylboration ? Silicon tethered alkene ring closing metathesis ? in situ ring opening protocol for the regiospecific generation of functionalized (E)-disubstituted homoallylic alcohols. Tetrahedron 1999. [DOI: 10.1016/s0040-4020(98)01135-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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48
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Hoye TR, Promo MA. Silicon tethered ring-closing metathesis reactions for self- and cross-coupling of alkenols. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(98)02697-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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49
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: annual survey covering the year 1997. Coord Chem Rev 1999. [DOI: 10.1016/s0010-8545(98)00219-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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50
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Barrett AGM, Baugh SPD, Braddock DC, Flack K, Gibson VC, Giles MR, Marshall EL, Procopiou PA, White AJP, Williams DJ. Rapid Entry into Mono-, Bi-, and Tricyclic β-Lactam Arrays via Alkene Metathesis. J Org Chem 1998. [DOI: 10.1021/jo981150j] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anthony G. M. Barrett
- Department of Chemistry, Imperial College of Science, Technology and Medicine, London SW7 2AY, U.K., and Department of Medicinal Chemistry, Glaxo Wellcome Research and Development Ltd., Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
| | - Simon P. D. Baugh
- Department of Chemistry, Imperial College of Science, Technology and Medicine, London SW7 2AY, U.K., and Department of Medicinal Chemistry, Glaxo Wellcome Research and Development Ltd., Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
| | - D. Christopher Braddock
- Department of Chemistry, Imperial College of Science, Technology and Medicine, London SW7 2AY, U.K., and Department of Medicinal Chemistry, Glaxo Wellcome Research and Development Ltd., Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
| | - Kevin Flack
- Department of Chemistry, Imperial College of Science, Technology and Medicine, London SW7 2AY, U.K., and Department of Medicinal Chemistry, Glaxo Wellcome Research and Development Ltd., Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
| | - Vernon C. Gibson
- Department of Chemistry, Imperial College of Science, Technology and Medicine, London SW7 2AY, U.K., and Department of Medicinal Chemistry, Glaxo Wellcome Research and Development Ltd., Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
| | - Matthew R. Giles
- Department of Chemistry, Imperial College of Science, Technology and Medicine, London SW7 2AY, U.K., and Department of Medicinal Chemistry, Glaxo Wellcome Research and Development Ltd., Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
| | - Edward L. Marshall
- Department of Chemistry, Imperial College of Science, Technology and Medicine, London SW7 2AY, U.K., and Department of Medicinal Chemistry, Glaxo Wellcome Research and Development Ltd., Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
| | - Panayiotis A. Procopiou
- Department of Chemistry, Imperial College of Science, Technology and Medicine, London SW7 2AY, U.K., and Department of Medicinal Chemistry, Glaxo Wellcome Research and Development Ltd., Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
| | - Andrew J. P. White
- Department of Chemistry, Imperial College of Science, Technology and Medicine, London SW7 2AY, U.K., and Department of Medicinal Chemistry, Glaxo Wellcome Research and Development Ltd., Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
| | - David J. Williams
- Department of Chemistry, Imperial College of Science, Technology and Medicine, London SW7 2AY, U.K., and Department of Medicinal Chemistry, Glaxo Wellcome Research and Development Ltd., Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
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