1
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Ciss I, Seck M, Figadère B, Ferrié L. Advances Toward Amphidinolides C, F and U: Isolations, Synthetic Studies and Total Syntheses. Chemistry 2024; 30:e202400471. [PMID: 38407454 DOI: 10.1002/chem.202400471] [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: 02/01/2024] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 02/27/2024]
Abstract
Amphidinolides C, F, and U, including C2-C4 analogs, are highly cytotoxic marine macrolides, mainly isolated from dinoflagellates of the genus Amphidinium. All these polyketides share a 75 % or more similar structure, highlighted by a macrolactone ring, at least one trans-2,5-substituted-THF motif and a characteristic polyenic side chain. From their isolation and absolute configurational assignment, the total synthesis of these marine macrolides represented an intense challenge to the organic synthesis community over the last 15 years, with around 14 research groups engaged in this inspiring task. In the first part of this review, we present the different approaches to the isolation and characterization of these natural products, including the most recent analogs, which may cast doubt on the biogenetic origin of these compounds. The various synthetic approaches to the total synthesis of C, F, and U amphidinolides are presented in a second part, focusing on key reactions and/or innovative strategies. The review concludes in a third section summarizing the successful approaches leading to the total synthesis of one of the members of this amphidinolide subfamily.
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Affiliation(s)
- Ismaila Ciss
- BioCIS, Faculté de Pharmacie, Université Paris-Saclay, CNRS, 91400, Orsay, France
- Laboratoire de Chimie Organique et Chimie Thérapeutique, Faculté de Médecine, de Pharmacie et d'Odontologie, Université Cheikh Anta Diop de Dakar -, BP 5005, Dakar-Fann, Sénégal
| | - Matar Seck
- Laboratoire de Chimie Organique et Chimie Thérapeutique, Faculté de Médecine, de Pharmacie et d'Odontologie, Université Cheikh Anta Diop de Dakar -, BP 5005, Dakar-Fann, Sénégal
| | - Bruno Figadère
- BioCIS, Faculté de Pharmacie, Université Paris-Saclay, CNRS, 91400, Orsay, France
| | - Laurent Ferrié
- BioCIS, Faculté de Pharmacie, Université Paris-Saclay, CNRS, 91400, Orsay, France
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2
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Swann WA, Yadav A, Colvin NB, Freundl NK, Li CW. Diastereoselective Hydrogenation of Tetrasubstituted Olefins using a Heterogeneous Pt-Ni Alloy Catalyst. Angew Chem Int Ed Engl 2024; 63:e202317710. [PMID: 38407502 PMCID: PMC11098551 DOI: 10.1002/anie.202317710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/24/2024] [Accepted: 02/26/2024] [Indexed: 02/27/2024]
Abstract
Stereoselective hydrogenation of tetrasubstituted olefins is an attractive method to access compounds with two contiguous stereocenters. However, homogeneous catalysts for enantio- and diastereoselective hydrogenation exhibit low reactivity toward tetrasubstituted olefins due to steric crowding between the ligand scaffold and the substrate. Monometallic heterogeneous catalysts, on the other hand, provide accessible surface active sites for hindered olefins but exhibit unpredictable and inconsistent stereoinduction. In this work, we develop a Pt-Ni bimetallic alloy catalyst that can diastereoselectively hydrogenate unactivated, sterically-bulky tetrasubstituted olefins, utilizing the more oxophilic Ni atoms to adsorb a hydroxyl directing group and direct facially-selective hydrogen addition to the olefin via the Pt atoms. Structure-activity studies on several Pt-Ni compositions underscore the importance of exposing a uniform PtNi alloy surface to achieve high diastereoselectivity and minimize side reactions. The optimized Pt-Ni/SiO2 catalyst exhibits good functional group tolerance and broad scope for tetrasubstituted olefins in a cyclopentene scaffold, generating cyclopentanol products with three contiguous stereocenters. The synthetic utility of the method is demonstrated in a four-step synthesis of (1R,2S)-(+)-cis-methyldihydrojasmonate with high yield and enantiopurity.
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Affiliation(s)
- William A. Swann
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Anish Yadav
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Nicholas B. Colvin
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Nicole K. Freundl
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Christina W. Li
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
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3
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Yang J, Sun W, Sun M, Cui Y, Wang L. Current Research Status of Azaspiracids. Mar Drugs 2024; 22:79. [PMID: 38393050 PMCID: PMC10890026 DOI: 10.3390/md22020079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/31/2024] [Accepted: 02/02/2024] [Indexed: 02/25/2024] Open
Abstract
The presence and impact of toxins have been detected in various regions worldwide ever since the discovery of azaspiracids (AZAs) in 1995. These toxins have had detrimental effects on marine resource utilization, marine environmental protection, and fishery production. Over the course of more than two decades of research and development, scientists from all over the world have conducted comprehensive studies on the in vivo metabolism, in vitro synthesis methods, pathogenic mechanisms, and toxicology of these toxins. This paper aims to provide a systematic introduction to the discovery, distribution, pathogenic mechanism, in vivo biosynthesis, and in vitro artificial synthesis of AZA toxins. Additionally, it will summarize various detection methods employed over the past 20 years, along with their advantages and disadvantages. This effort will contribute to the future development of rapid detection technologies and the invention of detection devices for AZAs in marine environmental samples.
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Affiliation(s)
| | | | | | | | - Lianghua Wang
- Basic Medical College, Naval Medical University, Shanghai 200433, China; (J.Y.); (W.S.); (M.S.); (Y.C.)
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4
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Li YJ, Lv XJ, Liu YK. Enantioselective Michael Addition/Cyclization/Desymmetrization Sequence of Prochiral Cyclic Hemiacetals and Nitroolefins: Synthesis of Chiral Oxygen-Bridged Bicyclic Compounds. Org Lett 2022; 24:9254-9258. [PMID: 36512320 DOI: 10.1021/acs.orglett.2c03815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The organocatalytic enantioselective Michael addition of functionalized prochiral cyclic hemiacetals and nitroolefins has been developed under cooperative enamine and hydrogen bond catalysis. The obtained chiral hemiacetal intermediates could be used in the subsequent diastereocontrolled cyclization/desymmetrization divergent process to access (1) 9-oxabicyclo[3.3.1]nonane or 8-oxabicyclo[3.2.1]octane frameworks via oxocarbenium ion-mediated Friedel-Crafts cyclization, and (2) 2,9-dioxabicyclo[3.3.1]nonane frameworks via intramolecular nucleophilic cyclization. Experimental results suggest that there is neighboring group participation controlling the diastereoselectivities of the desymmetrization process.
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Affiliation(s)
- Yu-Jie Li
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Xue-Jiao Lv
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Yan-Kai Liu
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China
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5
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Evans DA, Beiger JJ, Burch JD, Fuller PH, Glorius F, Kattnig E, Thaisrivongs DA, Trenkle WC, Young JM, Zhang J. Total Synthesis of Aflastatin A. J Am Chem Soc 2022; 144:19953-19972. [PMID: 36269121 DOI: 10.1021/jacs.2c08244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The total syntheses of aflastatin A and its C3-C48 degradation fragment (6a, R = H) have been accomplished. The syntheses feature several complex diastereoselective fragment couplings, including a Felkin-selective trityl-catalyzed Mukaiyama aldol reaction, a chelate-controlled aldol reaction involving soft enolization with magnesium, and an anti-Felkin-selective boron-mediated oxygenated aldol reaction. Careful comparison of the spectroscopic data for the synthetic C3-C48 degradation fragment to that reported by the isolation group revealed a structural misassignment in the lactol region of the naturally derived degradation product. Ultimately, the data reported for the naturally derived aflastatin A C3-C48 degradation lactol (6a, R = H) were attributed to its derivative lactol trideuteriomethyl ether (6c, R = CD3). Additionally, the revised absolute configurations of six stereogenic centers (C8, C9, and C28-C31) were confirmed.
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Affiliation(s)
- David A Evans
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Jason J Beiger
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Jason D Burch
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Peter H Fuller
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Frank Glorius
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Egmont Kattnig
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - David A Thaisrivongs
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - William C Trenkle
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Joseph M Young
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Jing Zhang
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
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6
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Otero P, Silva M. Emerging Marine Biotoxins in European Waters: Potential Risks and Analytical Challenges. Mar Drugs 2022; 20:199. [PMID: 35323498 PMCID: PMC8955394 DOI: 10.3390/md20030199] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 02/15/2022] [Accepted: 03/05/2022] [Indexed: 01/21/2023] Open
Abstract
Harmful algal blooms pose a challenge regarding food safety due to their erratic nature and forming circumstances which are yet to be disclosed. The best strategy to protect human consumers is through legislation and monitoring strategies. Global warming and anthropological intervention aided the migration and establishment of emerging toxin producers into Europe's temperate waters, creating a new threat to human public health. The lack of information, standards, and reference materials delay effective solutions, being a matter of urgent resolution. In this work, the recent findings of the presence of emerging azaspiracids, spirolildes, pinnatoxins, gymnodimines, palitoxins, ciguatoxins, brevetoxins, and tetrodotoxins on European Coasts are addressed. The information concerning emerging toxins such as new matrices, locations, and toxicity assays is paramount to set the risk assessment guidelines, regulatory levels, and analytical methodology that would protect the consumers.
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Affiliation(s)
- Paz Otero
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Veterinary Science, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Marisa Silva
- MARE—Marine and Environmental Sciences Centre, Faculty of Sciences, University of Lisbon, Campo Grande, 1749-016 Lisbon, Portugal
- Department of Plant Biology, Faculty of Sciences, University of Lisbon, Campo Grande, 1749-016 Lisbon, Portugal
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7
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Ferrié L, Ciss I, Fenneteau J, Vallerotto S, Seck M, Figadère B. Amphidinolides F and C2: An Odyssey in Total Synthesis. J Org Chem 2022; 87:1110-1123. [PMID: 34995058 DOI: 10.1021/acs.joc.1c02458] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Amphidinolides F, C, C2, and C3 are marine natural products isolated from dinoflagellates Amphidinium species. They share the same macrolactone core, with the difference between them residing at the side chain level. A predominant feature of these amphidinolides is the presence of two trans-THF rings inside the macrolactone core, which is thought to be built by C-glycosylation with titanium enolate of N-acetyl oxazolinethiones. Thus, the original strategy for their total synthesis was based on the assembly of three main fragments corresponding to C1-C9, C10-C19, and C20-C29 or C20-C34 disconnections. Whereas synthesis of all fragments was successful, the C-glycosylation reaction between C19 and C20 turned out to be an issue. Therefore, a second route was designed. The new disconnection between C17 and C18 was based on a sulfone addition and a desulfonylation sequence. Our convergent strategy allowed the total synthesis of amphidinolide F and enabled a new unifying route toward the synthesis of amphidinolides C, C2, and C3 using a late-stage divergent approach. Although there were unsatisfying yields at some critical steps, our work culminated into the first total synthesis of amphidinolide C2.
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Affiliation(s)
- Laurent Ferrié
- BioCIS, Université Paris-Saclay, CNRS, 92290 Châtenay-Malabry, France
| | - Ismaila Ciss
- BioCIS, Université Paris-Saclay, CNRS, 92290 Châtenay-Malabry, France.,Laboratoire de Chimie Organique et Chimie Thérapeutique, FMPO-UCAD, Université Cheikh Anta-diop, 5199 Dakar, Senegal
| | - Johan Fenneteau
- BioCIS, Université Paris-Saclay, CNRS, 92290 Châtenay-Malabry, France
| | - Sara Vallerotto
- BioCIS, Université Paris-Saclay, CNRS, 92290 Châtenay-Malabry, France
| | - Matar Seck
- Laboratoire de Chimie Organique et Chimie Thérapeutique, FMPO-UCAD, Université Cheikh Anta-diop, 5199 Dakar, Senegal
| | - Bruno Figadère
- BioCIS, Université Paris-Saclay, CNRS, 92290 Châtenay-Malabry, France
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8
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Nishimura K, Hanzawa R, Sugai T, Fuwa H. Ruthenium-Catalyzed Intramolecular Double Hydrofunctionalization of Alkynes. Synthesis of Spirocyclic Hemiaminal Ethers and Their Lewis Acid-Mediated Cleavage/Nucleophilic Addition. J Org Chem 2021; 86:6674-6697. [PMID: 33861607 DOI: 10.1021/acs.joc.1c00443] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[RuCl2(p-cymene)]2/AgNO3-catalyzed intramolecular double hydrofunctionalization of internal alkynes having nitrogen and oxygen nucleophilic groups at appropriate positions provided a series of spirocyclic hemiaminal ether derivatives in good to excellent yields. The product spiro-hemiaminal ethers underwent Lewis acid-mediated chemoselective cleavage, and in situ-generated iminium/oxocarbenium ions could be trapped with nucleophiles to afford a range of nitrogen and oxygen heterocycles.
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Affiliation(s)
- Kazuma Nishimura
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Ryohei Hanzawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Tomoya Sugai
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Haruhiko Fuwa
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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9
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Fan JH, Hu YJ, Li LX, Wang JJ, Li SP, Zhao J, Li CC. Recent advances in total syntheses of natural products containing the benzocycloheptane motif. Nat Prod Rep 2021; 38:1821-1851. [PMID: 33650613 DOI: 10.1039/d1np00003a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Covering: 2010 to 2020Benzocycloheptane is a fundamental and unique structural motif found in pharmaceuticals and natural products. The total syntheses of natural products bearing the benzocycloheptane subunit are challenging and there are only a few efficient approaches to access benzocycloheptane. Thus, new methods and innovative strategies for preparing such natural products need to be developed. In this review, recent progress in the total syntheses of natural products bearing the benzocycloheptane motif is presented, and key transformations for the construction of benzocycloheptane are highlighted. This review provides a useful guide for those engaged in the syntheses of natural products containing the benzocycloheptane motif.
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Affiliation(s)
- Jian-Hong Fan
- Institute of Chinese Medical Sciences, University of Macau, Macau, China. and Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Ya-Jian Hu
- Institute of Chinese Medical Sciences, University of Macau, Macau, China. and Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Li-Xuan Li
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Jing-Jing Wang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Shao-Ping Li
- Institute of Chinese Medical Sciences, University of Macau, Macau, China.
| | - Jing Zhao
- Institute of Chinese Medical Sciences, University of Macau, Macau, China.
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China.
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10
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Conversions of sulfone-containing vinyl azides to vinyl triazoles and enamides. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.131933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Collins N, Connon R, Sánchez‐Sanz G, Evans P. Isomerisation of Vinyl Sulfones for the Stereoselective Synthesis of Vinyl Azides. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001065] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Niall Collins
- Centre for Synthesis and Chemical Biology School of Chemistry University College Dublin D04 N2E2 Dublin Ireland
| | - Robert Connon
- Centre for Synthesis and Chemical Biology School of Chemistry University College Dublin D04 N2E2 Dublin Ireland
| | - Goar Sánchez‐Sanz
- Centre for Synthesis and Chemical Biology School of Chemistry University College Dublin D04 N2E2 Dublin Ireland
- Irish Centre of High‐End Computing Grand Canal Quay Dublin 2 Ireland
| | - Paul Evans
- Centre for Synthesis and Chemical Biology School of Chemistry University College Dublin D04 N2E2 Dublin Ireland
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12
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McDonald TR, Mills LR, West MS, Rousseaux SAL. Selective Carbon–Carbon Bond Cleavage of Cyclopropanols. Chem Rev 2020; 121:3-79. [DOI: 10.1021/acs.chemrev.0c00346] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Tyler R. McDonald
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - L. Reginald Mills
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Michael S. West
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Sophie A. L. Rousseaux
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
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13
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t-BuOK promoted stereoselective isomerization of allyl aryl ethers. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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14
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Kawashima H, Saito M, Watanabe MM, Kijima M. Preferential production of microalgal hydrocarbon pentathiolates by the photoinitiated thiol-ene reaction of botryococcene. ALGAL RES 2020. [DOI: 10.1016/j.algal.2019.101724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Abstract
Total synthesis of caesalpinnone A was achieved in 12 steps starting from resorcinol. Key features of the synthesis include BINOL-phosphoric acid catalyzed [4 + 2] cycloaddition, trans-selective nucleophilic substitution, deallylation/oxa-Michael addition cascade, and late-stage photo-Fries rearrangement.
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Affiliation(s)
- Zhigang Liu
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , Shaanxi , P. R. China
| | - Yifei Meng
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , Shaanxi , P. R. China
| | - Pengrui Yuan
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , Shaanxi , P. R. China
| | - Zhengshen Wang
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , Shaanxi , P. R. China
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , Shaanxi , P. R. China
| | - Huaiji Zheng
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , Shaanxi , P. R. China
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16
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Sengoku T, Shirai A, Takano A, Inuzuka T, Sakamoto M, Takahashi M, Yoda H. Divergent Synthesis of Methylene Lactone- and Methylene Lactam-Based Spiro Compounds: Utility of Amido-Functionalized γ-Hydroxylactam as a Precursor for Cytotoxic N,O- and N,N-Spiro Compounds. J Org Chem 2019; 84:12532-12541. [DOI: 10.1021/acs.joc.9b02038] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Tetsuya Sengoku
- Department of Applied Chemistry, Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan
| | - Anna Shirai
- Department of Applied Chemistry, Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan
| | - Ayaka Takano
- Department of Applied Chemistry, Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan
| | - Toshiyasu Inuzuka
- Division of Instrumental Analysis, Life Science Research Center, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Masami Sakamoto
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Masaki Takahashi
- Department of Applied Chemistry, Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan
| | - Hidemi Yoda
- Department of Applied Chemistry, Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan
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17
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Baikadi K, Talakokkula A, Narsaiah AV. Studies Towards the Stereoselective Total Synthesis of 7‐
O
‐methylnigrosporolide. ChemistrySelect 2019. [DOI: 10.1002/slct.201900863] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Karunakar Baikadi
- Organic Synthesis LaboratoryFluoro-Agro Chemicals DepartmentCSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana India
| | - Anil Talakokkula
- Organic Synthesis LaboratoryFluoro-Agro Chemicals DepartmentCSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana India
| | - A. Venkat Narsaiah
- Organic Synthesis LaboratoryFluoro-Agro Chemicals DepartmentCSIR-Indian Institute of Chemical Technology, Hyderabad 500007, Telangana India
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18
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Saito F, Trapp N, Bode JW. Iterative Assembly of Polycyclic Saturated Heterocycles from Monomeric Building Blocks. J Am Chem Soc 2019; 141:5544-5554. [PMID: 30845799 DOI: 10.1021/jacs.9b01537] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Polycyclic saturated heterocycles with predictable shapes and structures are assembled by iterative couplings of bifunctional stannyl amine protocol (SnAP) reagents and a single morpholine-forming assembly reaction. Combinations of just a few monomers enable the programmable construction of rotationally restricted, nonplanar heterocyclic arrays with discrete sizes and molecular shapes. The three-dimensional structures of these constrained scaffolds can be quickly and reliably predicted by DFT calculations and the target structures immediately decompiled into the constituent building blocks and assembly sequences. As a demonstration, in silico combinations of the building blocks predict saturated heptacyclic structures with elementary shapes including helices, S-turns and U-turns, which are synthesized in 5-6 steps from the monomers using just three chemical reactions.
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Affiliation(s)
- Fumito Saito
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences , ETH-Zürich , 8093 Zürich , Switzerland
| | - Nils Trapp
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences , ETH-Zürich , 8093 Zürich , Switzerland
| | - Jeffrey W Bode
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences , ETH-Zürich , 8093 Zürich , Switzerland
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19
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Abstract
Azaspiracid-34 (AZA34) is a recently described structurally unique member of the azaspiracid class of marine neurotoxins. Its novel structure, tentatively assigned on the basis of MS and 1H NMR spectroscopy, is accompanied by a 5.5-fold higher level of toxicity against Jurkat T lymphocytes than AZA1. To completely assign the structure of AZA34 and provide material for in-depth biological evaluation and detection, synthetic access to AZA34 was targeted. This began with the convergent and stereoselective assembly of the C1-C19 domain of AZA34 designed to dovetail with the recent total synthesis approach to AZA3.
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Affiliation(s)
- Antony A Okumu
- Department of Chemistry and Biochemistry , The Ohio State University , Columbus , Ohio 43210 , United States
| | - Craig J Forsyth
- Department of Chemistry and Biochemistry , The Ohio State University , Columbus , Ohio 43210 , United States
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20
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Heravi MM, Mohammadkhani L. Recent applications of Stille reaction in total synthesis of natural products: An update. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.05.018] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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21
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Yasukawa Y, Tsuchikawa H, Todokoro Y, Murata M. Stereoselective Construction of Cisoidal Bisspiroacetal Frameworks through Magnesium Coordination of the Bilateral Acetal Oxygen Atoms. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800074] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yoshifumi Yasukawa
- Department of Chemistry, Graduate School of Science; Osaka University; 1-1 Machikaneyama Toyonaka Osaka 560-0043 Japan
| | - Hiroshi Tsuchikawa
- Department of Chemistry, Graduate School of Science; Osaka University; 1-1 Machikaneyama Toyonaka Osaka 560-0043 Japan
| | - Yasuto Todokoro
- Department of Chemistry, Graduate School of Science; Osaka University; 1-1 Machikaneyama Toyonaka Osaka 560-0043 Japan
| | - Michio Murata
- Department of Chemistry, Graduate School of Science; Osaka University; 1-1 Machikaneyama Toyonaka Osaka 560-0043 Japan
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22
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Desimoni G, Faita G, Quadrelli P. Forty Years after “Heterodiene Syntheses with α,β-Unsaturated Carbonyl Compounds”: Enantioselective Syntheses of 3,4-Dihydropyran Derivatives. Chem Rev 2018; 118:2080-2248. [DOI: 10.1021/acs.chemrev.7b00322] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Giovanni Desimoni
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
| | - Giuseppe Faita
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
| | - Paolo Quadrelli
- Department of Chemistry, University of Pavia, Viale Taramelli 10, 27100 Pavia, Italy
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23
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Kenton NT, Adu‐Ampratwum D, Okumu AA, McCarron P, Kilcoyne J, Rise F, Wilkins AL, Miles CO, Forsyth CJ. Stereochemical Definition of the Natural Product (6
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)‐Azaspiracid‐3 by Total Synthesis and Comparative Analyses. Angew Chem Int Ed Engl 2018; 57:810-813. [DOI: 10.1002/anie.201711008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Nathaniel T. Kenton
- Department of Chemistry and BiochemistryThe Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
| | - Daniel Adu‐Ampratwum
- Department of Chemistry and BiochemistryThe Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
| | - Antony A. Okumu
- Department of Chemistry and BiochemistryThe Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
| | - Pearse McCarron
- Measurement Science and StandardsNational Research Council of Canada 1411 Oxford St. Halifax Nova Scotia B3H 3Z1 Canada
| | - Jane Kilcoyne
- Marine Institute, RinvilleOranmore, Co. Galway Ireland
| | - Frode Rise
- Department of ChemistryUniversity of Oslo 0315 Oslo Norway
| | - Alistair L. Wilkins
- Norwegian Veterinary Institute P.O. Box 750 Sentrum 0106 Oslo Norway
- Chemistry DepartmentUniversity of Waikato Private Bag 3105 3240 Hamilton New Zealand
| | - Christopher O. Miles
- Measurement Science and StandardsNational Research Council of Canada 1411 Oxford St. Halifax Nova Scotia B3H 3Z1 Canada
- Norwegian Veterinary Institute P.O. Box 750 Sentrum 0106 Oslo Norway
| | - Craig J. Forsyth
- Department of Chemistry and BiochemistryThe Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
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24
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Kenton NT, Adu‐Ampratwum D, Okumu AA, Zhang Z, Chen Y, Nguyen S, Xu J, Ding Y, McCarron P, Kilcoyne J, Rise F, Wilkins AL, Miles CO, Forsyth CJ. Total Synthesis of (6
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)‐Azaspiracid‐3 Reveals Non‐Identity with the Natural Product. Angew Chem Int Ed Engl 2018; 57:805-809. [DOI: 10.1002/anie.201711006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 11/16/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Nathaniel T. Kenton
- Department of Chemistry and BiochemistryThe Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
| | - Daniel Adu‐Ampratwum
- Department of Chemistry and BiochemistryThe Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
| | - Antony A. Okumu
- Department of Chemistry and BiochemistryThe Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
| | - Zhigao Zhang
- Shanghai Hengrui Pharmaceutical Inc. No. 279 Wenjing Road Shanghai 200245 P. R. China
| | - Yong Chen
- Asymchem Life Science No. 71 7th Ave., TEDA Tianjin 300000 P. R. China
| | - Son Nguyen
- Johnson Matthey Pharma Services 25 Patton Road Devens MA 01434 USA
| | - Jianyan Xu
- Shanghai Hengrui Pharmaceutical Inc. No. 279 Wenjing Road Shanghai 200245 P. R. China
| | - Yue Ding
- Viva Biotech Ltd. 581 Shenkuo Rd., Pudong District Shanghai 201203 China
| | - Pearse McCarron
- Measurement Science and StandardsNational Research Council of Canada Halifax Nova Scotia B3H 3Z1 Canada
| | - Jane Kilcoyne
- Marine Institute, RinvilleOranmore, Co. Galway Ireland
| | - Frode Rise
- Department of ChemistryUniversity of Oslo 0315 Oslo Norway
| | - Alistair L. Wilkins
- Norwegian Veterinary Institute P.O. Box 750 Sentrum 0106 Oslo Norway
- Chemistry DepartmentUniversity of Waikato Private Bag 3105 3240 Hamilton New Zealand
| | - Christopher O. Miles
- Measurement Science and StandardsNational Research Council of Canada Halifax Nova Scotia B3H 3Z1 Canada
- Norwegian Veterinary Institute P.O. Box 750 Sentrum 0106 Oslo Norway
| | - Craig J. Forsyth
- Department of Chemistry and BiochemistryThe Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
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25
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Kenton NT, Adu‐Ampratwum D, Okumu AA, McCarron P, Kilcoyne J, Rise F, Wilkins AL, Miles CO, Forsyth CJ. Stereochemical Definition of the Natural Product (6
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,10
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,13
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,16
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)‐Azaspiracid‐3 by Total Synthesis and Comparative Analyses. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201711008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Nathaniel T. Kenton
- Department of Chemistry and BiochemistryThe Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
| | - Daniel Adu‐Ampratwum
- Department of Chemistry and BiochemistryThe Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
| | - Antony A. Okumu
- Department of Chemistry and BiochemistryThe Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
| | - Pearse McCarron
- Measurement Science and StandardsNational Research Council of Canada 1411 Oxford St. Halifax Nova Scotia B3H 3Z1 Canada
| | - Jane Kilcoyne
- Marine Institute, RinvilleOranmore, Co. Galway Ireland
| | - Frode Rise
- Department of ChemistryUniversity of Oslo 0315 Oslo Norway
| | - Alistair L. Wilkins
- Norwegian Veterinary Institute P.O. Box 750 Sentrum 0106 Oslo Norway
- Chemistry DepartmentUniversity of Waikato Private Bag 3105 3240 Hamilton New Zealand
| | - Christopher O. Miles
- Measurement Science and StandardsNational Research Council of Canada 1411 Oxford St. Halifax Nova Scotia B3H 3Z1 Canada
- Norwegian Veterinary Institute P.O. Box 750 Sentrum 0106 Oslo Norway
| | - Craig J. Forsyth
- Department of Chemistry and BiochemistryThe Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
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26
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Kenton NT, Adu‐Ampratwum D, Okumu AA, Zhang Z, Chen Y, Nguyen S, Xu J, Ding Y, McCarron P, Kilcoyne J, Rise F, Wilkins AL, Miles CO, Forsyth CJ. Total Synthesis of (6
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,10
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)‐Azaspiracid‐3 Reveals Non‐Identity with the Natural Product. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201711006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Nathaniel T. Kenton
- Department of Chemistry and BiochemistryThe Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
| | - Daniel Adu‐Ampratwum
- Department of Chemistry and BiochemistryThe Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
| | - Antony A. Okumu
- Department of Chemistry and BiochemistryThe Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
| | - Zhigao Zhang
- Shanghai Hengrui Pharmaceutical Inc. No. 279 Wenjing Road Shanghai 200245 P. R. China
| | - Yong Chen
- Asymchem Life Science No. 71 7th Ave., TEDA Tianjin 300000 P. R. China
| | - Son Nguyen
- Johnson Matthey Pharma Services 25 Patton Road Devens MA 01434 USA
| | - Jianyan Xu
- Shanghai Hengrui Pharmaceutical Inc. No. 279 Wenjing Road Shanghai 200245 P. R. China
| | - Yue Ding
- Viva Biotech Ltd. 581 Shenkuo Rd., Pudong District Shanghai 201203 China
| | - Pearse McCarron
- Measurement Science and StandardsNational Research Council of Canada Halifax Nova Scotia B3H 3Z1 Canada
| | - Jane Kilcoyne
- Marine Institute, RinvilleOranmore, Co. Galway Ireland
| | - Frode Rise
- Department of ChemistryUniversity of Oslo 0315 Oslo Norway
| | - Alistair L. Wilkins
- Norwegian Veterinary Institute P.O. Box 750 Sentrum 0106 Oslo Norway
- Chemistry DepartmentUniversity of Waikato Private Bag 3105 3240 Hamilton New Zealand
| | - Christopher O. Miles
- Measurement Science and StandardsNational Research Council of Canada Halifax Nova Scotia B3H 3Z1 Canada
- Norwegian Veterinary Institute P.O. Box 750 Sentrum 0106 Oslo Norway
| | - Craig J. Forsyth
- Department of Chemistry and BiochemistryThe Ohio State University 151 W. Woodruff Ave Columbus OH 43210 USA
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27
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Pałasz A. Recent Advances in Inverse-Electron-Demand Hetero-Diels-Alder Reactions of 1-Oxa-1,3-Butadienes. Top Curr Chem (Cham) 2016; 374:24. [PMID: 27573264 PMCID: PMC5480413 DOI: 10.1007/s41061-016-0026-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 04/11/2016] [Indexed: 11/30/2022]
Abstract
This review is an endeavor to highlight the progress in the inverse-electron-demand hetero-Diels-Alder reactions of 1-oxa-1,3-butadienes in recent years. The huge number of examples of 1-oxadienes cycloadditions found in the literature clearly demonstrates the incessant importance of this transformation in pyran ring synthesis. This type of reaction is today one of the most important methods for the synthesis of dihydropyrans which are the key building blocks in structuring of carbohydrate and other natural products. Two different modes, inter- and intramolecular, of inverse-electron-demand hetero-Diels-Alder reactions of 1-oxadienes are discussed. The domino Knoevenagel hetero-Diels-Alder reactions are also described. In recent years the use of chiral Lewis acids, chiral organocatalysts, new optically active heterodienes or dienophiles have provided enormous progress in asymmetric synthesis. Solvent-free and aqueous hetero-Diels-Alder reactions of 1-oxabutadienes were also investigated. The reactivity of reactants, selectivity of cycloadditions, and chemical stability in aqueous solutions and under physiological conditions were taken into account to show the potential application of the described reactions in bioorthogonal chemistry. New bioorthogonal ligation by click inverse-electron-demand hetero-Diels-Alder cycloaddition of in situ-generated 1-oxa-1,3-butadienes and vinyl ethers was developed. It seems that some of the hetero-Diels-Alder reactions described in this review can be applied in bioorthogonal chemistry because they are selective, non-toxic, and can function in biological conditions taking into account pH, an aqueous environment, and temperature.
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Affiliation(s)
- Aleksandra Pałasz
- Department of Organic Chemistry, Jagiellonian University, Ingardena 3 St, 30-060, Kraków, Poland.
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28
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Basak S, Mal D. Intramolecular carbonyl-ene reactions in the synthesis of peri-oxygenated hydroaromatics. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.02.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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29
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Mailyan AK, Eickhoff JA, Minakova AS, Gu Z, Lu P, Zakarian A. Cutting-Edge and Time-Honored Strategies for Stereoselective Construction of C–N Bonds in Total Synthesis. Chem Rev 2016; 116:4441-557. [DOI: 10.1021/acs.chemrev.5b00712] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Artur K. Mailyan
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - John A. Eickhoff
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Anastasiia S. Minakova
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Zhenhua Gu
- Department
of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Ping Lu
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Armen Zakarian
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
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30
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Liu L, Leutzsch M, Zheng Y, Alachraf MW, Thiel W, List B. Confined Acid-Catalyzed Asymmetric Carbonyl–Ene Cyclization. J Am Chem Soc 2015; 137:13268-71. [DOI: 10.1021/jacs.5b09484] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Luping Liu
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Markus Leutzsch
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Yiying Zheng
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - M. Wasim Alachraf
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Walter Thiel
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Benjamin List
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
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31
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Reid JP, McAdam CA, Johnston AJS, Grayson MN, Goodman JM, Cook MJ. Base-mediated cascade rearrangements of aryl-substituted diallyl ethers. J Org Chem 2015; 80:1472-98. [PMID: 25514457 DOI: 10.1021/jo502403n] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Two base-mediated cascade rearrangement reactions of diallyl ethers were developed leading to selective [2,3]-Wittig-oxy-Cope and isomerization-Claisen rearrangements. Both diaryl and arylsilyl-substituted 1,3-substituted propenyl substrates were examined, and each exhibits unique reactivity and different reaction pathways. Detailed mechanistic and computational analysis was conducted, which demonstrated that the role of the base and solvent was key to the reactivity and selectivity observed. Crossover experiments also suggest that these reactions proceed with a certain degree of dissociation, and the mechanistic pathway is highly complex with multiple competing routes.
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Affiliation(s)
- Jolene P Reid
- School of Chemistry and Chemical Engineering, Queen's University Belfast , Belfast BT9 5AG, Northern Ireland, United Kingdom
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32
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Heravi MM, Ahmadi T, Ghavidel M, Heidari B, Hamidi H. Recent applications of the hetero Diels–Alder reaction in the total synthesis of natural products. RSC Adv 2015. [DOI: 10.1039/c5ra17488k] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The synthetic utility and potential power of the Diels–Alder (D–A) reaction in organic chemistry is evident.
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Affiliation(s)
| | | | | | | | - Hoda Hamidi
- Department of Chemistry
- Alzahra University
- Tehran
- Iran
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33
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Eschenbrenner-Lux V, Kumar K, Waldmann H. The asymmetric hetero-Diels-Alder reaction in the syntheses of biologically relevant compounds. Angew Chem Int Ed Engl 2014; 53:11146-57. [PMID: 25220929 DOI: 10.1002/anie.201404094] [Citation(s) in RCA: 171] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 06/03/2014] [Indexed: 12/21/2022]
Abstract
The hetero-Diels-Alder reaction is one of the most powerful transformations in the chemistry toolbox for the synthesis of aza- and oxa-heterocycles embodying multiple stereogenic centers. However, as compared to other cycloadditions, in particular the dipolar cycloadditions and the Diels-Alder reaction, the hetero-Diels-Alder reaction has been much less explored and exploited in organic synthesis. Nevertheless, this powerful transformation has opened up efficient and creative routes to biologically relevant small molecules and different natural products which contain six-membered oxygen or nitrogen ring systems. Recent developments in this field, in particular in the establishment of enantioselectively catalyzed hetero-Diels-Alder cycloadditions steered by a plethora of different catalysts and the application of the resulting small molecules in chemical biology and medicinal chemistry research, are highlighted in this Minireview.
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Affiliation(s)
- Vincent Eschenbrenner-Lux
- Max-Planck-Institut für molekulare Physiologie, Dortmund (Germany); Technische Universität, Dortmund, Dortmund (Germany)
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34
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Eschenbrenner-Lux V, Kumar K, Waldmann H. Die asymmetrische Hetero-Diels-Alder-Reaktion in Synthesen biologisch relevanter Verbindungen. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404094] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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35
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Fu C, Zhang Y, Xuan J, Zhu C, Wang B, Ding H. Diastereoselective Total Synthesis of Salvileucalin C. Org Lett 2014; 16:3376-9. [DOI: 10.1021/ol501423t] [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)
- Chenchen Fu
- Department
of Chemistry, Zhejiang University, 148 Tianmushan Road, Hangzhou 310028, P. R. China
| | - Yuanbao Zhang
- Department
of Chemistry, Zhejiang University, 148 Tianmushan Road, Hangzhou 310028, P. R. China
| | - Jun Xuan
- Department
of Chemistry, Zhejiang University, 148 Tianmushan Road, Hangzhou 310028, P. R. China
| | - Chenlong Zhu
- Department
of Chemistry, Zhejiang University, 148 Tianmushan Road, Hangzhou 310028, P. R. China
| | - Bingnan Wang
- Department
of Chemistry, Zhejiang University, 148 Tianmushan Road, Hangzhou 310028, P. R. China
| | - Hanfeng Ding
- Department
of Chemistry, Zhejiang University, 148 Tianmushan Road, Hangzhou 310028, P. R. China
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36
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Triantafyllakis M, Tofi M, Montagnon T, Kouridaki A, Vassilikogiannakis G. Singlet Oxygen-Mediated Synthesis of Bis-spiroketals Found in Azaspiracids. Org Lett 2014; 16:3150-3. [DOI: 10.1021/ol501301w] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Myron Triantafyllakis
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003 Iraklion, Crete, Greece
| | - Maria Tofi
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003 Iraklion, Crete, Greece
| | - Tamsyn Montagnon
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003 Iraklion, Crete, Greece
| | - Antonia Kouridaki
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003 Iraklion, Crete, Greece
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37
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Nasir NM, Ermanis K, Clarke PA. Strategies for the construction of tetrahydropyran rings in the synthesis of natural products. Org Biomol Chem 2014; 12:3323-35. [PMID: 24744139 DOI: 10.1039/c4ob00423j] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This review focuses on the methodology used for the construction of tetrahydropyran (THP) rings in the synthesis of natural products over the last seven years. While methods like cyclisation onto oxocarbenium ions, reduction of cyclic hemi-ketals, Michael reactions, hetero-Diels-Alder cycloadditions and cyclisations onto epoxides continue to find application, several other strategies including metal-mediated cyclisations, ring-closing metathesis, radical cyclisations and carbocation cyclisations have also found use. This review is intended to provide an overview of the area for those who are unfamiliar, and to refresh and remind those who do work in the area of the exciting developments in the field.
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Affiliation(s)
- Nadiah Mad Nasir
- Department of Chemistry, University of York, Heslington, York, North Yorks YO10 5DD, UK.
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38
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Humes CL, Banker TJ, Dorn SCM, Shanahan JP, Brennessel WW, Weix DJ. Bis{(R)-N-[(R)-2-benz-yloxy-1-(4-tert-butyl-phen-yl)eth-yl]-2-methyl-propane-2-sulfinamide} monohydrate. Acta Crystallogr Sect E Struct Rep Online 2014; 70:o405-6. [PMID: 24826122 PMCID: PMC3998603 DOI: 10.1107/s1600536814004589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 02/27/2014] [Indexed: 11/30/2022]
Abstract
The asymmetric unit of the title compound, 2C23H33NO2S·H2O, contains one organic molecule in a general position and one co-crystallized water molecule on a crystallographic twofold axis. Each water molecule serves as a hydrogen-bond donor to a pair of S=O acceptors on symmetry-related molecules. Thus, each trio of molecules forms one title formula unit. These groupings are further connected along [010] via weak non-classical C—H⋯O hydrogen bonds.
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Affiliation(s)
- Charlotte L Humes
- Department of Chemistry, 120 Trustee Road, 412 Hutchison Hall, University of Rochester, Rochester, NY 14627, USA
| | - Tyler J Banker
- Department of Chemistry, 120 Trustee Road, 412 Hutchison Hall, University of Rochester, Rochester, NY 14627, USA
| | - Stephanie C M Dorn
- Department of Chemistry, 120 Trustee Road, 412 Hutchison Hall, University of Rochester, Rochester, NY 14627, USA
| | - James P Shanahan
- Department of Chemistry, 120 Trustee Road, 412 Hutchison Hall, University of Rochester, Rochester, NY 14627, USA
| | - William W Brennessel
- Department of Chemistry, 120 Trustee Road, 412 Hutchison Hall, University of Rochester, Rochester, NY 14627, USA
| | - Daniel J Weix
- Department of Chemistry, 120 Trustee Road, 412 Hutchison Hall, University of Rochester, Rochester, NY 14627, USA
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Liu D, Liu C, Li H, Lei A. Copper-catalysed oxidative C–H/C–H coupling between olefins and simple ethers. Chem Commun (Camb) 2014; 50:3623-6. [DOI: 10.1039/c4cc00867g] [Citation(s) in RCA: 146] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Xu J, Jin Z, Chi YR. Organocatalytic Enantioselective γ-Aminoalkylation of Unsaturated Ester: Access to Pipecolic Acid Derivatives. Org Lett 2013; 15:5028-31. [DOI: 10.1021/ol402358k] [Citation(s) in RCA: 136] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jianfeng Xu
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Zhichao Jin
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Yonggui Robin Chi
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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42
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Lu C, Su X, Floreancig PE. Stereocontrolled cyanohydrin ether synthesis through chiral Brønsted acid-mediated vinyl ether hydrocyanation. J Org Chem 2013; 78:9366-76. [PMID: 23968162 DOI: 10.1021/jo4016002] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Vinyl ethers can be protonated to generate oxocarbenium ions that react with Me3SiCN to form cyanohydrin alkyl ethers. Reactions that form racemic products proceed efficiently upon conversion of the vinyl ether to an α-chloro ether prior to cyanide addition in a pathway that proceeds through Brønsted acid-mediated chloride ionization. Enantiomerically enriched products can be accessed by directly protonating the vinyl ether with a chiral Brønsted acid to form a chiral ion pair. Me3SiCN acts as the nucleophile and PhOH serves as a stoichiometric proton source in a rare example of asymmetric bimolecular nucleophilic addition into an oxocarbenium ion. Computational studies have provided a model for the interaction between the catalyst and the oxocarbenium ion.
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Affiliation(s)
- Chunliang Lu
- Department of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15260, United States
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43
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Liang L, Yang G, Xu F, Niu Y, Sun Q, Xu P. Copper-Catalyzed Aerobic Dehydrogenation of C-C to C=C Bonds in the Synthesis of Pyridazinones. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300640] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kan SBJ, Ng KK, Paterson I. Die Bedeutung der Mukaiyama‐Aldolreaktion für die Totalsynthese. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303914] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- S. B. Jennifer Kan
- Laboratory of Synthetic Organic Chemistry and Special Laboratory of Organocatalytic Chemistry, Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606‐8502 (Japan)
| | - Kenneth K.‐H. Ng
- University Chemical Laboratory, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (Großbritannien) http://www‐paterson.ch.cam.ac.uk
| | - Ian Paterson
- University Chemical Laboratory, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (Großbritannien) http://www‐paterson.ch.cam.ac.uk
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45
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Kan SBJ, Ng KKH, Paterson I. The impact of the Mukaiyama aldol reaction in total synthesis. Angew Chem Int Ed Engl 2013; 52:9097-108. [PMID: 23893491 DOI: 10.1002/anie.201303914] [Citation(s) in RCA: 142] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Indexed: 01/20/2023]
Abstract
Four decades since Mukaiyama's first reports on the successful application of silicon and boron enolates in directed aldol reactions, the ability of this highly controlled carbon-carbon bond-forming method to simultaneously define stereochemistry, introduce complexity, and construct the carbon skeleton with a characteristic 1,3-oxygenation pattern has made it a powerful tool for natural product synthesis. This Minireview highlights a number of representative total syntheses that demonstrate the impact of the Mukaiyama aldol reaction and discusses the underlying mechanistic rationale that determines the stereochemical outcomes.
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Affiliation(s)
- S B Jennifer Kan
- Laboratory of Synthetic Organic Chemistry, Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
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46
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Tuo S, Liu X, Huang P. Towards Stereochemical Control: Two Approaches for the Highlyanti-Diastereoselective Construction of the Spirolactone Moieties of SomeStemonaAlkaloids. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201200904] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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47
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Trost BM, Quintard A. Asymmetric catalytic synthesis of the proposed structure of trocheliophorolide B. Org Lett 2012; 14:4698-700. [PMID: 22913543 DOI: 10.1021/ol302074h] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A concise catalytic asymmetric synthesis of the proposed structure of trocheliophorolide B is reported. The synthetic sequence notably features an asymmetric acetaldehyde alkynylation, a Ru-catalyzed alder-ene reaction, and a Zn-ProPhenol ynone aldol condensation. Comparison with the reported data suggests a misassignment of the natural product structure.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, USA.
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Nicolaou KC, Hale CRH, Nilewski C, Ioannidou HA. Constructing molecular complexity and diversity: total synthesis of natural products of biological and medicinal importance. Chem Soc Rev 2012; 41:5185-238. [PMID: 22743704 PMCID: PMC3426871 DOI: 10.1039/c2cs35116a] [Citation(s) in RCA: 159] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The advent of organic synthesis and the understanding of the molecule as they occurred in the nineteenth century and were refined in the twentieth century constitute two of the most profound scientific developments of all time. These discoveries set in motion a revolution that shaped the landscape of the molecular sciences and changed the world. Organic synthesis played a major role in this revolution through its ability to construct the molecules of the living world and others like them whose primary element is carbon. Although the early beginnings of organic synthesis came about serendipitously, organic chemists quickly recognized its potential and moved decisively to advance and exploit it in myriad ways for the benefit of mankind. Indeed, from the early days of the synthesis of urea and the construction of the first carbon-carbon bond, the art of organic synthesis improved to impressively high levels of sophistication. Through its practice, today chemists can synthesize organic molecules--natural and designed--of all types of structural motifs and for all intents and purposes. The endeavor of constructing natural products--the organic molecules of nature--is justly called both a creative art and an exact science. Often called simply total synthesis, the replication of nature's molecules in the laboratory reflects and symbolizes the state of the art of synthesis in general. In the last few decades a surge in total synthesis endeavors around the world led to a remarkable collection of achievements that covers a wide ranging landscape of molecular complexity and diversity. In this article, we present highlights of some of our contributions in the field of total synthesis of natural products of biological and medicinal importance. For perspective, we also provide a listing of selected examples of additional natural products synthesized in other laboratories around the world over the last few years.
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Affiliation(s)
- K C Nicolaou
- Department of Chemistry and Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA
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Enev VS, Felzmann W, Gromov A, Marchart S, Mulzer J. Total Synthesis of Branimycin: An Evolutionary Approach. Chemistry 2012; 18:9651-68. [DOI: 10.1002/chem.201200257] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Indexed: 11/11/2022]
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Reactivity of the ester group attached isoxazoline, benzisoxazole, and isoxazole: a facial preparation of 3-acyl-substituted these heterocycles. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.05.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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