1
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Hao X, Li TR, Chen H, Gini A, Zhang X, Rosset S, Mazet C, Tiefenbacher K, Matile S. Bioinspired Ether Cyclizations within a π-Basic Capsule Compared to Autocatalysis on π-Acidic Surfaces and Pnictogen-Bonding Catalysts. Chemistry 2021; 27:12215-12223. [PMID: 34060672 PMCID: PMC8456975 DOI: 10.1002/chem.202101548] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Indexed: 12/15/2022]
Abstract
While the integration of supramolecular principles in catalysis attracts increasing attention, a direct comparative assessment of the resulting systems catalysts to work out distinct characteristics is often difficult. Herein is reported how the broad responsiveness of ether cyclizations to diverse inputs promises to fill this gap. Cyclizations in the confined, π-basic and Brønsted acidic interior of supramolecular capsules, for instance, are found to excel with speed (exceeding general Brønsted acid and hydrogen-bonding catalysts by far) and selective violations of the Baldwin rules (as extreme as the so far unique pnictogen-bonding catalysts). The complementary cyclization on π-acidic aromatic surfaces remains unique with regard to autocatalysis, which is shown to be chemo- and diastereoselective with regard to product-like co-catalysts but, so far, not enantioselective.
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Affiliation(s)
- Xiaoyu Hao
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, CH-1121, Geneva, Switzerland.,NCCR Molecular Systems Engineering BPR 1095, Mattenstrasse 24a, CH-4058, Basel, Switzerland.,College of Materials, Chemistry and Chemical Engineering, Chengdu University of Technology, 1 Dongsan Road Erxianqiao, Chengdu, 610059, P.R. China
| | - Tian-Ren Li
- NCCR Molecular Systems Engineering BPR 1095, Mattenstrasse 24a, CH-4058, Basel, Switzerland.,Department of Chemistry, University of Basel, Mattenstrasse 24a, CH-4058, Basel, Switzerland
| | - Hao Chen
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, CH-1121, Geneva, Switzerland.,NCCR Molecular Systems Engineering BPR 1095, Mattenstrasse 24a, CH-4058, Basel, Switzerland
| | - Andrea Gini
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, CH-1121, Geneva, Switzerland.,NCCR Molecular Systems Engineering BPR 1095, Mattenstrasse 24a, CH-4058, Basel, Switzerland
| | - Xiang Zhang
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, CH-1121, Geneva, Switzerland.,NCCR Molecular Systems Engineering BPR 1095, Mattenstrasse 24a, CH-4058, Basel, Switzerland.,Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Science, Northwest A&F University, Xianyang Shi, Yangling, 712100, P. R. China
| | - Stéphane Rosset
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, CH-1121, Geneva, Switzerland
| | - Clément Mazet
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, CH-1121, Geneva, Switzerland
| | - Konrad Tiefenbacher
- NCCR Molecular Systems Engineering BPR 1095, Mattenstrasse 24a, CH-4058, Basel, Switzerland.,Department of Chemistry, University of Basel, Mattenstrasse 24a, CH-4058, Basel, Switzerland.,Department of Biosystems Science and Engineering, ETH Zurich, Mattenstrasse 26, CH-4058, Basel, Switzerland
| | - Stefan Matile
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, CH-1121, Geneva, Switzerland.,NCCR Molecular Systems Engineering BPR 1095, Mattenstrasse 24a, CH-4058, Basel, Switzerland
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2
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Schulthoff S, Hamilton JY, Heinrich M, Kwon Y, Wirtz C, Fürstner A. The Formosalides: Structure Determination by Total Synthesis. Angew Chem Int Ed Engl 2021; 60:446-454. [PMID: 32946141 PMCID: PMC7821135 DOI: 10.1002/anie.202011472] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Indexed: 01/08/2023]
Abstract
Total synthesis allowed the constitution of the cytotoxic marine macrolides of the formosalide family to be confirmed and their previously unknown stereostructure to be assigned with confidence. The underlying blueprint was inherently modular to ensure that each conceivable isomer could be reached. This flexibility derived from the use of strictly catalyst controlled transformations to set the stereocenters, except for the anomeric position, which is under thermodynamic control; as an extra safety measure, all stereogenic centers were set prior to ring closure to preclude any interference of the conformation adopted by the macrolactone rings of the different diastereomers. Late-stage macrocyclization by ring-closing alkyne metathesis was followed by a platinum-catalyzed transannular 6-exo-dig hydroalkoxylation/ketalization to craft the polycyclic frame. The side chain featuring a very labile unsaturation pattern was finally attached to the core by Stille coupling.
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Affiliation(s)
| | | | - Marc Heinrich
- Max-Planck-Institut für Kohlenforschung45470Mülheim/RuhrGermany
| | - Yonghoon Kwon
- Max-Planck-Institut für Kohlenforschung45470Mülheim/RuhrGermany
| | - Conny Wirtz
- Max-Planck-Institut für Kohlenforschung45470Mülheim/RuhrGermany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung45470Mülheim/RuhrGermany
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3
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Schulthoff S, Hamilton JY, Heinrich M, Kwon Y, Wirtz C, Fürstner A. The Formosalides: Structure Determination by Total Synthesis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202011472] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
| | | | - Marc Heinrich
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Yonghoon Kwon
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Conny Wirtz
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
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4
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Li FX, Ren SJ, Li PF, Yang P, Qu J. An Endo-Selective Epoxide-Opening Cascade for the Fast Assembly of the Polycyclic Core Structure of Marine Ladder Polyethers. Angew Chem Int Ed Engl 2020; 59:18473-18478. [PMID: 32666578 DOI: 10.1002/anie.202007980] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Indexed: 12/13/2022]
Abstract
The rapid synthesis of marine ladder polyethers from polyepoxide precursors (in analogy with the biosynthetic pathway hypothesized by Nakanishi) is hampered by the fact that the exo-selective epoxide-opening cyclization cascade that gives THF-type polyethers is preferred over the endo-selective cascade that gives the desired products. We found that perfluoro-tert-butanol (PFTB) cooperating with 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM]BF4 ) can promote endo-selective epoxide-opening cyclization reactions of trisubstituted epoxy alcohols. Starting from readily accessible homochiral polyepoxy alcohols with a methyl group at all the endo-cyclization sites, we were able to construct polyethers up to five consecutive fused 6-, 7-, and/or 8-membered rings in one step. Notably, molecules with the 7/7/6/6 and 7/7/6/7/6 polyether frameworks of hemibrevetoxin B and brevenal, respectively, could be synthesized in 40 % and 17 % chemical yields.
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Affiliation(s)
- Feng-Xing Li
- The State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Shu-Jian Ren
- The State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Pei-Fang Li
- The State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Peng Yang
- The State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Jin Qu
- The State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
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5
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Li F, Ren S, Li P, Yang P, Qu J. An
Endo
‐Selective Epoxide‐Opening Cascade for the Fast Assembly of the Polycyclic Core Structure of Marine Ladder Polyethers. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007980] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Feng‐Xing Li
- The State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Shu‐Jian Ren
- The State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Pei‐Fang Li
- The State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Peng Yang
- The State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Jin Qu
- The State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 China
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6
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Wang H, Zhao Y, Zhang F, Wu Y, Li R, Xiang J, Wang Z, Han B, Liu Z. Hydrogen‐Bonding Catalyzed Ring‐Closing C−O/C−O Metathesis of Aliphatic Ethers over Ionic Liquid under Metal‐Free Conditions. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Huan Wang
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Yanfei Zhao
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
| | - Fengtao Zhang
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Yunyan Wu
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Ruipeng Li
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Junfeng Xiang
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
| | - Zhenpeng Wang
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Physical Science Laboratory Huairou National Comprehensive Science Center No. 5 Yanqi East Second Street Beijing 101400 China
| | - Zhimin Liu
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Physical Science Laboratory Huairou National Comprehensive Science Center No. 5 Yanqi East Second Street Beijing 101400 China
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7
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Wang H, Zhao Y, Zhang F, Wu Y, Li R, Xiang J, Wang Z, Han B, Liu Z. Hydrogen‐Bonding Catalyzed Ring‐Closing C−O/C−O Metathesis of Aliphatic Ethers over Ionic Liquid under Metal‐Free Conditions. Angew Chem Int Ed Engl 2020; 59:11850-11855. [DOI: 10.1002/anie.202004002] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Huan Wang
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Yanfei Zhao
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
| | - Fengtao Zhang
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Yunyan Wu
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Ruipeng Li
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Junfeng Xiang
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
| | - Zhenpeng Wang
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Physical Science Laboratory Huairou National Comprehensive Science Center No. 5 Yanqi East Second Street Beijing 101400 China
| | - Zhimin Liu
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Physical Science Laboratory Huairou National Comprehensive Science Center No. 5 Yanqi East Second Street Beijing 101400 China
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8
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Liu Z, Hu X. Palladium‐Catalyzed Propargylic [n+2] Cycloaddition: An Efficient Strategy for Construction of Benzo‐Fused Medium‐Sized Heterocycles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801359] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhen‐Ting Liu
- Dalian Institute of Chemical PhysicsChinese Academy of Sciences 457 Zhongshan Road Dalian 116023 People's Republic of China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Xiang‐Ping Hu
- Dalian Institute of Chemical PhysicsChinese Academy of Sciences 457 Zhongshan Road Dalian 116023 People's Republic of China
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9
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Stereoselective Synthesis of 1,2-Annulated Sugars Having Substituted Tetrahydropyran/(-furan) Scaffolds Using the Prins-Reaction. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801273] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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10
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Ota Y, Kondoh A, Terada M. Enantioselective Intramolecular Nicholas Reaction Catalyzed by Chiral Phosphoric Acid: Enantioconvergent Synthesis of Seven-Membered Cyclic Ethers from Racemic Diols. Angew Chem Int Ed Engl 2018; 57:13917-13921. [PMID: 30160819 DOI: 10.1002/anie.201808239] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Revised: 08/11/2018] [Indexed: 11/09/2022]
Abstract
An enantioconvergent intramolecular Nicholas reaction of racemic diols was developed using BINOL- and SPINOL-derived phosphoric acids as the chiral Brønsted acid catalyst. The developed reaction features an efficient approach to the synthesis of seven-membered cyclic ethers in a highly enantioselective manner. Further derivatization of the enantioenriched cyclic ethers, initiated by the de-complexation of the dicobalt species, afforded densely functionalized cyclic ethers having an unsaturated diester moiety without loss of enantiomeric excess.
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Affiliation(s)
- Yusuke Ota
- Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Azusa Kondoh
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Masahiro Terada
- Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
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11
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Ota Y, Kondoh A, Terada M. Enantioselective Intramolecular Nicholas Reaction Catalyzed by Chiral Phosphoric Acid: Enantioconvergent Synthesis of Seven‐Membered Cyclic Ethers from Racemic Diols. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808239] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yusuke Ota
- Department of ChemistryGraduate School of ScienceTohoku University Aramaki Aoba-ku Sendai 980-8578 Japan
| | - Azusa Kondoh
- Research and Analytical Center for Giant MoleculesGraduate School of ScienceTohoku University Aramaki Aoba-ku Sendai 980-8578 Japan
| | - Masahiro Terada
- Department of ChemistryGraduate School of ScienceTohoku University Aramaki Aoba-ku Sendai 980-8578 Japan
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12
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Anderl F, Größl S, Wirtz C, Fürstner A. Total Synthesis of Belizentrin Methyl Ester: Report on a Likely Conquest. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805125] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Felix Anderl
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Sylvester Größl
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Conny Wirtz
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
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13
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Anderl F, Größl S, Wirtz C, Fürstner A. Total Synthesis of Belizentrin Methyl Ester: Report on a Likely Conquest. Angew Chem Int Ed Engl 2018; 57:10712-10717. [DOI: 10.1002/anie.201805125] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Indexed: 01/21/2023]
Affiliation(s)
- Felix Anderl
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Sylvester Größl
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Conny Wirtz
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
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14
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Iron-Catalyzed Ring-Closing C−O/C−O Metathesis of Aliphatic Ethers. Angew Chem Int Ed Engl 2018; 57:6940-6944. [DOI: 10.1002/anie.201802563] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Indexed: 12/11/2022]
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15
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Biberger T, Makai S, Lian Z, Morandi B. Eisenkatalysierte C-O/C-O-Bindungsmetathese von aliphatischen Ethern. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802563] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Tobias Biberger
- Max-Planck-Institut für Kohlenforschung; Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
| | - Szabolcs Makai
- Max-Planck-Institut für Kohlenforschung; Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
| | - Zhong Lian
- Max-Planck-Institut für Kohlenforschung; Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
| | - Bill Morandi
- Max-Planck-Institut für Kohlenforschung; Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
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16
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Disetti P, Piras L, Moccia M, Saviano M, Adamo MFA. Model Studies for the Preparation of Oxepanes and Fused Compounds by Tandem [4+3] Cycloaddition/Ring-Opening Metathesis/Cross Metathesis. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700994] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Paolo Disetti
- Department of Pharmaceutical and Medicinal Chemistry; Centre for Synthesis and Chemical Biology (CSCB); Royal College of Surgeons in Ireland; 123 St. Stephen's Green Dublin 2 Ireland
| | - Linda Piras
- Institute of Crystallography; Consiglio Nazionale delle Ricerche (CNR)-Bari; Via G. Amendola 122/O 70126 Bari Italy
| | - Maria Moccia
- Institute of Crystallography; Consiglio Nazionale delle Ricerche (CNR)-Bari; Via G. Amendola 122/O 70126 Bari Italy
| | - Michele Saviano
- Institute of Crystallography; Consiglio Nazionale delle Ricerche (CNR)-Bari; Via G. Amendola 122/O 70126 Bari Italy
| | - Mauro F. A. Adamo
- Department of Pharmaceutical and Medicinal Chemistry; Centre for Synthesis and Chemical Biology (CSCB); Royal College of Surgeons in Ireland; 123 St. Stephen's Green Dublin 2 Ireland
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17
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Pospech J, Ferraccioli R, LaBerge N, Neumann H, Beller M. Rhodium(II)-Catalyzed Annulation of Azavinyl Carbenes Through Ring-Expansion of 1,3,5-Trioxane: Rapid Access to Nine-Membered 1,3,5,7-Trioxazonines. Chem Asian J 2015; 10:2624-30. [PMID: 26247492 DOI: 10.1002/asia.201500493] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Indexed: 11/10/2022]
Abstract
The rhodium(II)-catalyzed denitrogenative coupling of N-alkylsulfonyl 1,2,3-triazoles with 1,3,5-trioxane led to nine-membered-ringed trioxazonines in moderate-to-good yields. 1,3,5-Trioxane, acting as an oxygen nucleophile, reacted with the α-aza-vinylcarbene intermediate, giving rise to ylide formation, which was probably the key step in the reaction. Triazoles that contained aryl substituents with various electronic and steric features on the C4 carbon atom were well-tolerated. The synthesis of trioxazonine derivatives was achieved through a one-pot, two-step procedure from 1-mesylazide and a terminal alkyne by combining Cu(I)-catalyzed 1,3-dipolar cycloaddition and rhodium-catalyzed transformations.
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Affiliation(s)
- Jola Pospech
- Leibniz-Institut für Katalyse an der Universität Rostock e.V., Albert-Einstein-Straße 29, 18059, Rostock, Germany
| | - Raffaella Ferraccioli
- Leibniz-Institut für Katalyse an der Universität Rostock e.V., Albert-Einstein-Straße 29, 18059, Rostock, Germany.,CNR-Istituto di Scienze e Tecnologie Molecolari (ISTM), Via C. Golgi 19, 20133, Milano, Italy
| | | | - Helfried Neumann
- Leibniz-Institut für Katalyse an der Universität Rostock e.V., Albert-Einstein-Straße 29, 18059, Rostock, Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse an der Universität Rostock e.V., Albert-Einstein-Straße 29, 18059, Rostock, Germany.
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18
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Sasaki M, Fuwa H. Total synthesis and complete structural assignment of gambieric acid A, a large polycyclic ether marine natural product. CHEM REC 2014; 14:678-703. [PMID: 25092231 DOI: 10.1002/tcr.201402052] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Indexed: 12/30/2022]
Abstract
More than thirty years after the discovery of polycyclic ether marine natural products, they continue to receive intense attention from the chemical, biological, and pharmacological communities because of their potent biological activities and highly complex molecular architectures. Gambieric acids are intriguing polycyclic ethers that exhibit potent antifungal activity with minimal toxicity against mammals. Despite the recent advances in the synthesis of this class of natural products, gambieric acids remain unconquered due to their daunting structural complexity, which poses a formidable synthetic challenge to organic chemists. This paper reviews our long-term studies on the total synthesis, complete configurational reassignment, and structure-activity relationships of gambieric acid A over the last decade.
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Affiliation(s)
- Makoto Sasaki
- Graduate School of Life Sciences, Tohoku University, Katahira, Aoba-ku, Sendai 980-8577, Japan.
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Mousseau JJ, Morten CJ, Jamison TF. A dioxane template for highly selective epoxy alcohol cyclizations. Chemistry 2013; 19:10004-16. [PMID: 23775936 PMCID: PMC3763493 DOI: 10.1002/chem.201300845] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Indexed: 11/06/2022]
Abstract
Ladder polyether natural products are a class of natural products denoted by their high functional-group density and large number of well-defined stereocenters. They comprise the toxic component of harmful algal blooms (HABs), having significant negative economic and environmental ramifications. However, their mode of action, namely blocking various cellular ion channels, also denotes their promise as potential anticancer agents. Understanding their potential mode of biosynthesis will not only help with developing ways to limit the damage of HABs, but would also facilitate the synthesis of a range of analogs with interesting biological activity. 1,3-Dioxan-5-ol substrates display remarkable 'enhanced template effects' in water-promoted epoxide cyclization processes en route to the synthesis of these ladder polyether natural products. In many cases, they provide near complete endo-to-exo selectivity in the cyclization of epoxy alcohols, thereby strongly favoring the formation of tetrahydropyran (THP) over tetrahydrofuran (THF) rings. The effects of various Brønsted and Lewis acidic and basic conditions are explored to demonstrate the superior selectivity of the template over the previously reported THP-based epoxy alcohols. In addition, the consideration of other synthetic routes are also considered with the goal of gaining rapid access to a plethora of potential starting materials applicable towards the synthesis of ladder polyethers. Finally, cascade sequences with polyepoxides are investigated, further demonstrating the versatility of this new reaction template.
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Affiliation(s)
- James J. Mousseau
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA, 02139, USA
| | - Christopher J. Morten
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA, 02139, USA
| | - Timothy F. Jamison
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA, 02139, USA
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Sarabia F, Vivar-García C, García-Castro M, García-Ruiz C, Martín-Gálvez F, Sánchez-Ruiz A, Chammaa S. A Highly Stereoselective Synthesis of Glycidic Amides Based on a New Class of Chiral Sulfonium Salts: Applications in Asymmetric Synthesis. Chemistry 2012; 18:15190-201. [DOI: 10.1002/chem.201201332] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 08/31/2012] [Indexed: 11/12/2022]
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21
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Nicolaou KC, Hale CRH, Nilewski C. A Total Synthesis Trilogy: Calicheamicin γ1I, Taxol®, and Brevetoxin A. CHEM REC 2012; 12:407-41. [DOI: 10.1002/tcr.201200005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Indexed: 11/10/2022]
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22
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Ebine M, Fuwa H, Sasaki M. Total synthesis of (-)-brevenal: a streamlined strategy for practical synthesis of polycyclic ethers. Chemistry 2011; 17:13754-61. [PMID: 22052481 DOI: 10.1002/chem.201101437] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 08/08/2011] [Indexed: 11/09/2022]
Abstract
We describe a streamlined strategy for the practical synthesis of trans-fused polycyclic ethers and its application to a concise total synthesis of (-)-brevenal, a new pentacyclic polyether natural product with intriguing biological activities. The B-, D-, and E-rings were constructed by TEMPO/PhI(OAc)(2)-mediated oxidative lactonization of the corresponding 1,6-diols, with minimal need for manipulation of oxygen functionalities. The B- and E-ring lactones were appropriately functionalized by Suzuki-Miyaura coupling of lactone-derived enol phosphates and subsequent stereoselective hydroboration. The A-ring was formed by our mixed thioacetalization methodology. The AB- and DE-ring fragments were assembled through Suzuki-Miyaura coupling, and the C-ring was forged in the same manner as that for the A-ring. More than two grams of the pentacyclic polyether core of (-)-brevenal have been synthesized by the synthetic route developed in this study.
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Affiliation(s)
- Makoto Ebine
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
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Çayir M, Demirci S, Sezer S, Tanyeli C. Stereoselective synthesis of optically active dihydrofurans and dihydropyrans via a ring closing metathesis reaction. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.07.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
Maitotoxin holds a special place in the annals of natural products chemistry as the largest and most toxic secondary metabolite known to date. Its fascinating, ladder-like, polyether molecular structure and diverse spectrum of biological activities elicited keen interest from chemists and biologists who recognized its uniqueness and potential as a probe and inspiration for research in chemistry and biology. Synthetic studies in the area benefited from methodologies and strategies that were developed as part of chemical synthesis programs directed toward the total synthesis of some of the less complex members of the polyether marine biotoxin class, of which maitotoxin is the flagship. This account focuses on progress made in the authors' laboratories in the synthesis of large maitotoxin domains with emphasis on methodology development, strategy design, and structural comparisons of the synthesized molecules with the corresponding regions of the natural product. The article concludes with an overview of maitotoxin's biological profile and future perspectives.
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Affiliation(s)
- K. C. Nicolaou
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037 (USA), Fax: (+1) 858-784-2469, and Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093 (USA)
| | - Robert J. Aversa
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037 (USA), Fax: (+1) 858-784-2469, and Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093 (USA)
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López JC, Plumet J. Metathesis Reactions of Carbohydrates: Recent Highlights in Alkyne Metathesis. European J Org Chem 2011. [DOI: 10.1002/ejoc.201001518] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- J. Cristóbal López
- Instituto de Química Orgánica General, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - Joaquín Plumet
- Universidad Complutense, Facultad de Química, Departamento de Química Orgánica, Ciudad Universitaria s/n, 28040 Madrid, Spain, Fax: +34‐91‐394‐4103
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Hernández-Torres G, Carreño MC, Urbano A, Colobert F. The Effect of Sulfoxides on the Stereoselective Construction of Tetrahydrofurans: Total Synthesis of (+)-Goniothalesdiol. Chemistry 2010; 17:1283-93. [DOI: 10.1002/chem.201002637] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Indexed: 11/09/2022]
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Van Dyke AR, Jamison TF. Functionalized templates for the convergent assembly of polyethers: synthesis of the HIJK rings of gymnocin A. Angew Chem Int Ed Engl 2009; 48:4430-2. [PMID: 19431181 DOI: 10.1002/anie.200900924] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Extension ladder: The successful application of epoxide-opening strategies towards the synthesis of ladder-type polyethers is contingent upon further elaboration of the product. By employing two different functionalized templates, a fragment of gymnocin A that bears four sites for subsequent fragment coupling has been prepared (see scheme; Bn = benzyl).
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Affiliation(s)
- Aaron R Van Dyke
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave, Rm 18-492, USA
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Crimmins MT, Ellis JM, Emmitte KA, Haile PA, McDougall PJ, Parrish JD, Zuccarello JL. Enantioselective total synthesis of brevetoxin A: unified strategy for the B, E, G, and J subunits. Chemistry 2009; 15:9223-34. [PMID: 19650091 PMCID: PMC2826130 DOI: 10.1002/chem.200900776] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Brevetoxin A is a decacyclic ladder toxin that possesses 5-, 6-, 7-, 8-, and 9-membered oxacycles, as well as 22 tetrahedral stereocenters. Herein, we describe a unified approach to the B, E, G, and J rings based upon a ring-closing metathesis strategy from the corresponding dienes. The enolate technologies developed in our laboratory allowed access to the precursor acyclic dienes for the B, E, and G medium-ring ethers. The strategies developed for the syntheses of these four monocycles ultimately provided multigram quantities of each of the rings, supporting our efforts toward the completion of a convergent synthesis of brevetoxin A.
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Affiliation(s)
- Michael T Crimmins
- Univeristy of North Carolina at Chapel Hill, Department of Chemistry, Chapel Hill, NC 27599-3290, USA.
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Crimmins MT, Zuccarello JL, McDougall PJ, Ellis JM. Enantioselective total synthesis of brevetoxin A: convergent coupling strategy and completion. Chemistry 2009; 15:9235-44. [PMID: 19655349 PMCID: PMC2826122 DOI: 10.1002/chem.200900777] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A highly convergent, enantioselective total synthesis of brevetoxin A is reported. The development of a [X+2+X] Horner-Wadsworth-Emmons/cyclodehydration/reductive etherification convergent coupling strategy allowed a unified approach to the synthesis of two advanced tetracyclic fragments from four cyclic ether subunits. The Horner-Wittig coupling of the two tetracyclic fragments provided substrates that were explored for reductive etherification, the success of which delivered a late-stage tetraol intermediate. The tetraol was converted to the natural product through an expeditious selective oxidative process followed by methylenation.
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Affiliation(s)
- Michael T Crimmins
- University of North Carolina at Chapel Hill, Department of Chemistry, Chapel Hill, NC 27599-3290, USA.
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Vilotijevic I, Jamison T. Epoxidöffnungskaskaden zur Synthese polycyclischer Polyether-Naturstoffe. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200900600] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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31
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Van Dyke A, Jamison T. Funktionalisierte Template für den konvergenten Aufbau von Polyethern: Synthese der HIJK-Ringe von Gymnocin A. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200900924] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Vilotijevic I, Jamison TF. Epoxide-opening cascades in the synthesis of polycyclic polyether natural products. Angew Chem Int Ed Engl 2009; 48:5250-81. [PMID: 19572302 PMCID: PMC2810545 DOI: 10.1002/anie.200900600] [Citation(s) in RCA: 171] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The structural features of polycyclic polyether natural products can, in some cases, be traced to their biosynthetic origin. However in case that are less well understood, only biosynthetic pathways that feature dramatic, yet speculative, epoxide-opening cascades are proposed. We summarize how such epoxide-opening cascade reactions have been used in the synthesis of polycyclic polyethers (see scheme) and related natural products.The group of polycyclic polyether natural products is of special interest owing to the fascinating structure and biological effects displayed by its members. The latter includes potentially therapeutic antibiotic, antifungal, and anticancer properties, and extreme lethality. The polycyclic structural features of this class of compounds can, in some cases, be traced to their biosynthetic origin, but in others that are less well understood, only to proposed biosynthetic pathways that feature dramatic, yet speculative, epoxide-opening cascades. In this review we summarize how such epoxide-opening cascade reactions have been used in the synthesis of polycyclic polyethers and related natural products.
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Affiliation(s)
- Ivan Vilotijevic
- Department of Chemistry, Massachusettes Institute of Technology, Cambridge, MA 02139 (USA), Fax: (+1) 617-324-0253, , , Homepage: http://web.mit.edu/chemistry/jamison
| | - Timothy F. Jamison
- Department of Chemistry, Massachusettes Institute of Technology, Cambridge, MA 02139 (USA), Fax: (+1) 617-324-0253, , , Homepage: http://web.mit.edu/chemistry/jamison
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