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Pharande SG. The Merger of Isocyanide‐Based Multicomponent Reaction and Ring‐Closing Metathesis (IMCR/RCM). ChemistrySelect 2021. [DOI: 10.1002/slct.202004131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Roane J, Wippich J, Ramgren SD, Krische MJ. Synthesis of the C(1)-C(13) Fragment of Leiodermatolide via Hydrogen-Mediated C-C Bond Formation. Org Lett 2017; 19:6634-6637. [PMID: 29168383 PMCID: PMC5732063 DOI: 10.1021/acs.orglett.7b03351] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Indexed: 12/23/2022]
Abstract
The C(1)-C(13) fragment of the antimitotic marine macrolide leiodermatolide is prepared in seven steps via hydrogenative and transfer-hydrogenative reductive C-C couplings. A hydrogen-mediated reductive coupling of acetylene with a Roche-type aldehyde is used to construct C(7)-C(13). A 2-propanol-mediated reductive coupling of allyl acetate with (E)-2-methylbut-2-enal at a low loading of iridium (1 mol %) is used to construct C(1)-C(6), which is converted to an allylsilane using Oestereich's copper-catalyzed allylic substitution of Si-Zn reagents. The union of the C(1)-C(6) and C(7)-C(13) fragments is achieved via stereoselective Sakurai allylation.
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Affiliation(s)
| | | | - Stephen D. Ramgren
- Department of Chemistry, University of Texas at Austin Austin, Texas 78712, United States
| | - Michael J. Krische
- Department of Chemistry, University of Texas at Austin Austin, Texas 78712, United States
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Humpl M, Tauchman J, Topolovčan N, Kretschmer J, Hessler F, Císařová I, Kotora M, Veselý J. Stereoselective Synthesis of Ezetimibe via Cross-Metathesis of Homoallylalcohols and α-Methylidene-β-Lactams. J Org Chem 2016; 81:7692-9. [DOI: 10.1021/acs.joc.6b01406] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marek Humpl
- Department of Organic Chemistry,
Faculty of Science and ‡Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Praha 2, Czech Republic
| | - Jiří Tauchman
- Department of Organic Chemistry,
Faculty of Science and ‡Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Praha 2, Czech Republic
| | - Nikola Topolovčan
- Department of Organic Chemistry,
Faculty of Science and ‡Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Praha 2, Czech Republic
| | - Jan Kretschmer
- Department of Organic Chemistry,
Faculty of Science and ‡Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Praha 2, Czech Republic
| | - Filip Hessler
- Department of Organic Chemistry,
Faculty of Science and ‡Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Praha 2, Czech Republic
| | - Ivana Císařová
- Department of Organic Chemistry,
Faculty of Science and ‡Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Praha 2, Czech Republic
| | - Martin Kotora
- Department of Organic Chemistry,
Faculty of Science and ‡Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Praha 2, Czech Republic
| | - Jan Veselý
- Department of Organic Chemistry,
Faculty of Science and ‡Department of Inorganic Chemistry,
Faculty of Science, Charles University in Prague, Hlavova 2030/8, 12843 Praha 2, Czech Republic
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Nookaraju U, Harbindu A, Bhise AD, Sharma BM, Kumar P. First total synthesis of seimatopolide B. RSC Adv 2012. [DOI: 10.1039/c2ra21838k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Giri AG, Mondal MA, Puranik VG, Ramana CV. Effect of the allylic substituents on ring closing metathesis: the total synthesis of stagonolide B and 4-epi-stagonolide B. Org Biomol Chem 2010; 8:398-406. [DOI: 10.1039/b916198h] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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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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Imahori T, Ojima H, Yoshimura Y, Takahata H. Acceleration effect of an allylic hydroxy group on ring-closing enyne metathesis of terminal alkynes: scope, application, and mechanistic insights. Chemistry 2008; 14:10762-71. [PMID: 18850614 DOI: 10.1002/chem.200801439] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
An interesting acceleration effect of an allylic hydroxy group on ring-closing enyne metathesis has been found. Ring-closing enyne metathesis of terminal alkynes possessing an allylic hydroxy group proceeded smoothly without the ethylene atmosphere generally necessary to promote the reaction. The synthesis of (+)-isofagomine with the aid of this efficient reaction has been demonstrated. Mechanistic studies of the acceleration effect were also carried out. Results of NMR studies suggested that the reaction proceeded via an "ene-then-yne" pathway. Kinetic studies indicated switching of the rate-determining step as a consequence of the presence of an allylic hydroxy group. These results suggest acceleration of the reentry step of Ru-carbene species by the allylic hydroxy group.
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Affiliation(s)
- Tatsushi Imahori
- Faculty of Pharmaceutical Sciences, Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan.
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Patel P, Lee GJ, Kim S, Grant GE, Powell WS, Rokach J. Enantio- and Stereospecific Syntheses of 15(R)-Me-PGD2, A Potent and Selective DP2−Receptor Agonist. J Org Chem 2008; 73:7213-8. [DOI: 10.1021/jo801190m] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pranav Patel
- Claude Pepper Institute and Department of Chemistry, Florida Institute of Technology, 150 West University Boulevard, Melbourne, Florida 32901, and Meakins-Christie Laboratories, Department of Medicine, McGill University, 3626 St. Urbain Street, Montreal, Quebec, Canada H2X 2P2
| | - Gue-Jae Lee
- Claude Pepper Institute and Department of Chemistry, Florida Institute of Technology, 150 West University Boulevard, Melbourne, Florida 32901, and Meakins-Christie Laboratories, Department of Medicine, McGill University, 3626 St. Urbain Street, Montreal, Quebec, Canada H2X 2P2
| | - Seongjin Kim
- Claude Pepper Institute and Department of Chemistry, Florida Institute of Technology, 150 West University Boulevard, Melbourne, Florida 32901, and Meakins-Christie Laboratories, Department of Medicine, McGill University, 3626 St. Urbain Street, Montreal, Quebec, Canada H2X 2P2
| | - Gail E. Grant
- Claude Pepper Institute and Department of Chemistry, Florida Institute of Technology, 150 West University Boulevard, Melbourne, Florida 32901, and Meakins-Christie Laboratories, Department of Medicine, McGill University, 3626 St. Urbain Street, Montreal, Quebec, Canada H2X 2P2
| | - William S. Powell
- Claude Pepper Institute and Department of Chemistry, Florida Institute of Technology, 150 West University Boulevard, Melbourne, Florida 32901, and Meakins-Christie Laboratories, Department of Medicine, McGill University, 3626 St. Urbain Street, Montreal, Quebec, Canada H2X 2P2
| | - Joshua Rokach
- Claude Pepper Institute and Department of Chemistry, Florida Institute of Technology, 150 West University Boulevard, Melbourne, Florida 32901, and Meakins-Christie Laboratories, Department of Medicine, McGill University, 3626 St. Urbain Street, Montreal, Quebec, Canada H2X 2P2
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Das S, Chandrasekhar S, Yadav JS, Grée R. Recent developments in the synthesis of prostaglandins and analogues. Chem Rev 2007; 107:3286-337. [PMID: 17590055 DOI: 10.1021/cr068365a] [Citation(s) in RCA: 222] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Saibal Das
- Université de Rennes I, Laboratoire de Synthèse et Electrosynthèse Organiques, CNRS UMR 6510, Avenue du Général Leclerc, 35042 Rennes Cedex, France
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Sheddan NA, Czybowski M, Mulzer J. Novel synthetic strategies for the preparation of prostacyclin and prostaglandin analogues ? off the beaten track. Chem Commun (Camb) 2007:2107-20. [PMID: 17520108 DOI: 10.1039/b617693n] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The recent increase in activity in the fields of neuroscience and life sciences has been mirrored by the design and synthesis of novel chemically and metabolically stable prostaglandin and prostacyclin analogues. Consequently, convenient and practical access to these important classes of compounds is greatly coveted. Various strategies for the preparation of prostacyclin, prostaglandin and isoprostane analogues are discussed, with particular focus on novel approaches developed in our own laboratories.
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Affiliation(s)
- Neil A Sheddan
- Institut für Organische Chemie, Währingerstrasse 38, A-1090 Wien, Austria.
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