201
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Chen LA, Ashley MA, Leighton JL. Evolution of an Efficient and Scalable Nine-Step (Longest Linear Sequence) Synthesis of Zincophorin Methyl Ester. J Am Chem Soc 2017; 139:4568-4573. [PMID: 28266852 DOI: 10.1021/jacs.7b01590] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Because of both their synthetically challenging and stereochemically complex structures and their wide range of often clinically relevant biological activities, nonaromatic polyketide natural products have for decades attracted an enormous amount of attention from synthetic chemists and played an important role in the development of modern asymmetric synthesis. Often, such compounds are not available in quantity from natural sources, rendering analogue synthesis and drug development efforts extremely resource-intensive and time-consuming. In this arena, the quest for ever more step-economical and efficient methods and strategies, useful and important goals in their own right, takes on added importance, and the most useful syntheses will combine high levels of step-economy with efficiency and scalability. The nonaromatic polyketide natural product zincophorin methyl ester has attracted significant attention from synthetic chemists due primarily to the historically synthetically challenging C(8)-C(12) all-anti stereopentad. While great progress has been made in the development of new methodologies to more directly address this problem and as a result in the development of more highly step-economical syntheses, a synthesis that combines high levels of step economy with high levels of efficiency and scalability has remained elusive. To address this problem, we have devised a new synthesis of zincophorin methyl ester that proceeds in just nine steps in the longest linear sequence and proceeds in 10% overall yield. Additionally, the scalability and practicability of the route have been demonstrated by performing all of the steps on a meaningful scale. This synthesis thus represents by a significant margin the most step-economical, efficient, and practicable synthesis of this stereochemically complex natural product reported to date, and is well suited to facilitate the synthesis of analogues and medicinal chemistry development efforts in a time- and resource-efficient manner.
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Affiliation(s)
- Liang-An Chen
- Department of Chemistry, Columbia University , New York, New York 10027, United States
| | - Melissa A Ashley
- Department of Chemistry, Columbia University , New York, New York 10027, United States
| | - James L Leighton
- Department of Chemistry, Columbia University , New York, New York 10027, United States
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202
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Ma JF, Ma F, Zhou ZJ, Liu YT. Theoretical prediction on CO insertion reactions through the anionic complex [ClMg(η 2 -O 2 C] − as a catalyst. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2016.12.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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203
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Feng JJ, Zhang J. Rhodium-Catalyzed Stereoselective Intramolecular Tandem Reaction of Vinyloxiranes with Alkynes: Atom- and Step-Economical Synthesis of Multifunctional Mono-, Bi-, and Tricyclic Compounds. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03399] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jian-Jun Feng
- Shanghai Key Laboratory of
Green Chemistry and Chemical Processes, School of Chemistry and Molecular
Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, People’s Republic of China
| | - Junliang Zhang
- Shanghai Key Laboratory of
Green Chemistry and Chemical Processes, School of Chemistry and Molecular
Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, People’s Republic of China
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204
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Yuan H, Guo Z, Luo T. Synthesis of (+)-Lysergol and Its Analogues To Assess Serotonin Receptor Activity. Org Lett 2017; 19:624-627. [DOI: 10.1021/acs.orglett.6b03779] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Haosen Yuan
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering,
Ministry of Education, Beijing National Laboratory for Molecular Science,
College of Chemistry and Molecular Engineering, and ‡Peking-Tsinghua Center for Life Sciences,
Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Zhixian Guo
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering,
Ministry of Education, Beijing National Laboratory for Molecular Science,
College of Chemistry and Molecular Engineering, and ‡Peking-Tsinghua Center for Life Sciences,
Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Tuoping Luo
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering,
Ministry of Education, Beijing National Laboratory for Molecular Science,
College of Chemistry and Molecular Engineering, and ‡Peking-Tsinghua Center for Life Sciences,
Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
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205
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McGee P, Bétournay G, Barabé F, Barriault L. A 11-Steps Total Synthesis of Magellanine through a Gold(I)-Catalyzed Dehydro Diels-Alder Reaction. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611606] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Philippe McGee
- Center for Catalysis Research and Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie-Curie Ottawa K1N 6N5 Canada
| | - Geneviève Bétournay
- Center for Catalysis Research and Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie-Curie Ottawa K1N 6N5 Canada
| | - Francis Barabé
- Center for Catalysis Research and Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie-Curie Ottawa K1N 6N5 Canada
| | - Louis Barriault
- Center for Catalysis Research and Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie-Curie Ottawa K1N 6N5 Canada
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206
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McGee P, Bétournay G, Barabé F, Barriault L. A 11-Steps Total Synthesis of Magellanine through a Gold(I)-Catalyzed Dehydro Diels-Alder Reaction. Angew Chem Int Ed Engl 2017; 56:6280-6283. [PMID: 28079949 DOI: 10.1002/anie.201611606] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Indexed: 11/10/2022]
Abstract
We have developed an innovative strategy for the formation of angular carbocycles via a gold(I)-catalyzed dehydro Diels-Alder reaction. This transformation provides rapid access to a variety of complex angular cores in excellent diastereoselectivities and high yields. The usefulness of this AuI -catalyzed cycloaddition was further demonstrated by accomplishing a 11-steps total synthesis of (±)-magellanine.
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Affiliation(s)
- Philippe McGee
- Center for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, K1N 6N5, Canada
| | - Geneviève Bétournay
- Center for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, K1N 6N5, Canada
| | - Francis Barabé
- Center for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, K1N 6N5, Canada
| | - Louis Barriault
- Center for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, K1N 6N5, Canada
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207
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High-Valent Cobalt-Catalyzed C H Bond Functionalization. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2017. [DOI: 10.1016/bs.adomc.2017.07.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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208
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Hu Y, Bai M, Yang Y, Zhou Q. Metal-catalyzed enyne cycloisomerization in natural product total synthesis. Org Chem Front 2017. [DOI: 10.1039/c7qo00702g] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enyne cycloisomerization has become a powerful and attractive strategy for the construction of cyclic compounds, thus possessing great potential for applications in total synthesis of natural products and pharmaceuticals.
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Affiliation(s)
- Ying Hu
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P.R. China
| | - Miao Bai
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P.R. China
| | - Ying Yang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P.R. China
| | - Qianghui Zhou
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P.R. China
- The Institute for Advanced Studies
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209
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Abstract
This review defines symmetric molecules from a synthetic perspective and shows various strategies that take advantage of molecular symmetry to construct them.
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Affiliation(s)
- Wen-Ju Bai
- Department of Chemistry
- Stanford University
- Stanford
- USA
| | - Xiqing Wang
- College of Bioscience and Biotechnology
- Yangzhou University
- Yangzhou
- China
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210
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Bebbington MWP. Natural product analogues: towards a blueprint for analogue-focused synthesis. Chem Soc Rev 2017; 46:5059-5109. [DOI: 10.1039/c6cs00842a] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A review of approaches to natural product analogues leads to the suggestion of new methods for the generation of biologically active natural product-like scaffolds.
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211
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Scheidt F, Selter P, Santschi N, Holland MC, Dudenko DV, Daniliuc C, Mück-Lichtenfeld C, Hansen MR, Gilmour R. Emulating Natural Product Conformation by Cooperative, Non-Covalent Fluorine Interactions. Chemistry 2016; 23:6142-6149. [PMID: 27788283 DOI: 10.1002/chem.201604632] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Indexed: 01/22/2023]
Abstract
Pervasive in Nature, the propane unit is an essential component of numerous bioactive molecules. These range from acyclic systems, such as the neurotransmitter γ-aminobutyric acid, through to the bicyclic nuclei of various chromanes and dihydrobenzofurans. In the latter case, cyclisation via cyclic ether formation ensures a highly pre-organised structure, whilst linear scaffolds display more dynamic conformational behaviour resulting from rotation about the two internal C(sp3 )-C(sp3 ) bonds. In this study, the replacement of -[CH2 ]- units by -[CHF]- centres is evaluated as a strategy to achieve acyclic conformational control by hindering these internal rotations. Reinforcing, non-covalent fluorine interactions are validated as powerful design features that result in programmable conformational behaviours: These are encoded by the relative configuration of each centre. By exploiting cooperative neighbouring stereoelectronic effects in a multi-vicinal fluoroalkane it is possible to emulate the overall conformation of the dihydrobenzofuran scaffold found in a variety of natural products with an acyclic mimic. This is described as a function of two bond vectors at the chain termini and validated by combined theoretical, crystallographic and spectroscopic analyses. In view of the favourable physicochemical properties associated with fluorine introduction, this approach to bioactive scaffold design may prove to be expansive.
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Affiliation(s)
- Felix Scheidt
- Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Germany
| | - Philipp Selter
- Institute for Physical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Germany
| | - Nico Santschi
- Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Germany
| | - Mareike C Holland
- Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Germany
| | - Dmytro V Dudenko
- Laboratory for Chemistry of Novel Materials, University of Mons, Place du Parc 20, 7000, Mons, Belgium
| | - Constantin Daniliuc
- Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Germany
| | - Christian Mück-Lichtenfeld
- Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Germany
| | - Michael Ryan Hansen
- Institute for Physical Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Germany
| | - Ryan Gilmour
- Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Germany.,Excellence Cluster EXC 1003, Cells in Motion, Westfälische Wilhelms-Universität Münster, Münster, Germany
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212
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Ortega MA, van der Donk WA. New Insights into the Biosynthetic Logic of Ribosomally Synthesized and Post-translationally Modified Peptide Natural Products. Cell Chem Biol 2016; 23:31-44. [PMID: 26933734 DOI: 10.1016/j.chembiol.2015.11.012] [Citation(s) in RCA: 203] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 11/10/2015] [Accepted: 11/10/2015] [Indexed: 10/24/2022]
Abstract
Ribosomally synthesized and post-translationally modified peptides (RiPPs) are a large group of structurally diverse natural products. Their biological activities and unique biosynthetic pathways have sparked a growing interest in RiPPs. Furthermore, the relatively low genetic complexity associated with RiPP biosynthesis makes them excellent candidates for synthetic biology applications. This Review highlights recent developments in the understanding of the biosynthesis of several bacterial RiPP family members, the use of the RiPP biosynthetic machinery for generating novel macrocyclic peptides, and the implementation of tools designed to guide the discovery and characterization of novel RiPPs.
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Affiliation(s)
- Manuel A Ortega
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Wilfred A van der Donk
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA; Department of Chemistry, Howard Hughes Medical Institute, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
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213
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Takahama Y, Shibata Y, Tanaka K. Concise Synthesis of Fungal Metabolite (+)-Fusarochromanone via Rhodium(III)-catalyzed Oxidative sp2C–H Bond Olefination. CHEM LETT 2016. [DOI: 10.1246/cl.160530] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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214
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Davydova MP, Vasilevsky SF, Nenajdenko VG. Reaction of trifluoroacetyl acetylenes with β-amino alcohols. Synthesis of enaminoketones and unusual fragmentation. J Fluor Chem 2016. [DOI: 10.1016/j.jfluchem.2016.08.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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215
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Romashov LV, Ananikov VP. Synthesis of HIV-1 capsid protein assembly inhibitor (CAP-1) and its analogues based on a biomass approach. Org Biomol Chem 2016; 14:10593-10598. [PMID: 27714265 DOI: 10.1039/c6ob01731b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A biomass-derived platform chemical was utilized to access a demanded pharmaceutical substance with anti-HIV activity (HIV, human immunodeficiency virus) and a variety of structural analogues. Step economy in the synthesis of the drug core (single stage from cellulose) is studied including flexible variability of four structural units. The first synthesis and X-ray structure of the inhibitor of HIV-1 capsid protein assembly (CAP-1) is described.
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Affiliation(s)
- Leonid V Romashov
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, 119991 Moscow, Russia.
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216
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Yamamoto K, Qureshi Z, Tsoung J, Pisella G, Lautens M. Combining Ru-Catalyzed C-H Functionalization with Pd-Catalyzed Asymmetric Allylic Alkylation: Synthesis of 3-Allyl-3-aryl Oxindole Derivatives from Aryl α-Diazoamides. Org Lett 2016; 18:4954-4957. [PMID: 27632781 DOI: 10.1021/acs.orglett.6b02423] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ruthenium-catalyzed C-H functionalization was successfully combined with palladium-catalyzed asymmetric allylic alkylation in one pot. The novel dual-metal-catalyzed reaction provides a variety of 3-allyl-3-aryl oxindoles from the corresponding α-diazoamides in up to 99% yield with up to 85% ee. The appropriate ligand choice is important to promote the sequential reaction, avoiding undesired metal interaction or ligand exchange.
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Affiliation(s)
- Kosuke Yamamoto
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Zafar Qureshi
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Jennifer Tsoung
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Guillaume Pisella
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Mark Lautens
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
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217
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Nairoukh Z, Kumar GGKSN, Minko Y, Marek I. Enantioselective allylic alkylation of stereodefined polysubstituted copper enolates as an entry to acyclic quaternary carbon stereocentres. Chem Sci 2016; 8:627-630. [PMID: 28451210 PMCID: PMC5358538 DOI: 10.1039/c6sc03036j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Accepted: 08/25/2016] [Indexed: 01/09/2023] Open
Abstract
A sequence of regio- and stereoselective carbometalation followed by oxidation of ynamides leads to stereodefined fully substituted enolates that subsequently react with various functionalized allyl bromide reagents to provide the enantiomerically pure quaternary carbon stereocentre in the α-position to the carbonyl group.
A sequence of regio- and stereoselective carbometalation followed by oxidation of ynamides leads to stereodefined fully substituted enolates that subsequently react with various functionalized allyl bromide reagents to provide the expected products possessing an enantiomerically pure quaternary carbon stereocentre in the α-position to the carbonyl group in excellent yields and enantiomeric ratios after cleavage of the oxazolidinone moiety. Three new bonds are formed in a single-pot operation.
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Affiliation(s)
- Zackaria Nairoukh
- The Mallat Family Laboratory of Organic Chemistry , Schulich Faculty of Chemistry and Lise Meitner-Minerva Center for Computational Quantum Chemistry , Technion-Israel Institute of Technology , Technion City , Haifa 32000 , Israel . ; ; Tel: +972-4-829-37-09
| | - Gunda G K S Narayana Kumar
- The Mallat Family Laboratory of Organic Chemistry , Schulich Faculty of Chemistry and Lise Meitner-Minerva Center for Computational Quantum Chemistry , Technion-Israel Institute of Technology , Technion City , Haifa 32000 , Israel . ; ; Tel: +972-4-829-37-09
| | - Yury Minko
- The Mallat Family Laboratory of Organic Chemistry , Schulich Faculty of Chemistry and Lise Meitner-Minerva Center for Computational Quantum Chemistry , Technion-Israel Institute of Technology , Technion City , Haifa 32000 , Israel . ; ; Tel: +972-4-829-37-09
| | - Ilan Marek
- The Mallat Family Laboratory of Organic Chemistry , Schulich Faculty of Chemistry and Lise Meitner-Minerva Center for Computational Quantum Chemistry , Technion-Israel Institute of Technology , Technion City , Haifa 32000 , Israel . ; ; Tel: +972-4-829-37-09
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218
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Roy SR, Didier D, Kleiner A, Marek I. Diastereodivergent combined carbometalation/zinc homologation/C-C fragmentation reaction as an efficient tool to prepare acyclic allylic quaternary carbon stereocenters. Chem Sci 2016; 7:5989-5994. [PMID: 30034740 PMCID: PMC6022242 DOI: 10.1039/c6sc02191c] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 05/23/2016] [Indexed: 02/05/2023] Open
Abstract
A new strategy has been developed to construct enantiomerically enriched acyclic allylic quaternary carbon stereocenters in a single-pot operation through a combined carbometalation/zinc homologation/fragmentation sequence. Proper tuning of the reaction conditions enables the synthesis of the two enantiomers starting from a single enantiomer of the starting material.
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Affiliation(s)
- Sudipta Raha Roy
- The Mallat Family Laboratory of Organic Chemistry , Schulich Faculty of Chemistry and Lise Meitner-Minerva Center for Computational Quantum Chemistry , Technion-Israel Institute of Technology , Technion City , Haifa 32000 , Israel . ; ; Tel: +972-4-829-37-09
| | - Dorian Didier
- The Mallat Family Laboratory of Organic Chemistry , Schulich Faculty of Chemistry and Lise Meitner-Minerva Center for Computational Quantum Chemistry , Technion-Israel Institute of Technology , Technion City , Haifa 32000 , Israel . ; ; Tel: +972-4-829-37-09
| | - Amir Kleiner
- The Mallat Family Laboratory of Organic Chemistry , Schulich Faculty of Chemistry and Lise Meitner-Minerva Center for Computational Quantum Chemistry , Technion-Israel Institute of Technology , Technion City , Haifa 32000 , Israel . ; ; Tel: +972-4-829-37-09
| | - Ilan Marek
- The Mallat Family Laboratory of Organic Chemistry , Schulich Faculty of Chemistry and Lise Meitner-Minerva Center for Computational Quantum Chemistry , Technion-Israel Institute of Technology , Technion City , Haifa 32000 , Israel . ; ; Tel: +972-4-829-37-09
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219
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Divergent synthesis and identification of the cellular targets of deoxyelephantopins. Nat Commun 2016; 7:12470. [PMID: 27539788 PMCID: PMC4992173 DOI: 10.1038/ncomms12470] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 06/23/2016] [Indexed: 12/12/2022] Open
Abstract
Herbal extracts containing sesquiterpene lactones have been extensively used in traditional medicine and are known to be rich in α,β-unsaturated functionalities that can covalently engage target proteins. Here we report synthetic methodologies to access analogues of deoxyelephantopin, a sesquiterpene lactone with anticancer properties. Using alkyne-tagged cellular probes and quantitative proteomics analysis, we identified several cellular targets of deoxyelephantopin. We further demonstrate that deoxyelephantopin antagonizes PPARγ activity in situ via covalent engagement of a cysteine residue in the zinc-finger motif of this nuclear receptor. Deoxyelephantopin is a naturally occurring sesquiterpene lactone with known anticancer properties. Here, the authors synthesize deoxyelephantopins and a range of analogues including alkyne-tagged probes, using them to identify its cellular targets.
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220
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221
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Chen M, Liu J, Duan P, Li M, Liu W. Biosynthesis and molecular engineering of templated natural products. Natl Sci Rev 2016. [DOI: 10.1093/nsr/nww045] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Abstract
Bioactive small molecules that are produced by living organisms, often referred to as natural products (NPs), historically play a critical role in the context of both medicinal chemistry and chemical biology. How nature creates these chemical entities with stunning structural complexity and diversity using a limited range of simple substrates has not been fully understood. Focusing on two types of NPs that share a highly evolvable ‘template’-biosynthetic logic, we here provide specific examples to highlight the conceptual and technological leaps in NP biosynthesis and witness the area of progress since the beginning of the twenty-first century. The biosynthesis of polyketides, non-ribosomal peptides and their hybrids that share an assembly-line enzymology of modular multifunctional proteins exemplifies an extended ‘central dogma’ that correlates the genotype of catalysts with the chemotype of products; in parallel, post-translational modifications of ribosomally synthesized peptides involve a number of unusual biochemical mechanisms for molecular maturation. Understanding the biosynthetic processes of these templated NPs would largely facilitate the design, development and utilization of compatible biosynthetic machineries to address the challenge that often arises from structural complexity to the accessibility and efficiency of current chemical synthesis.
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Affiliation(s)
- Ming Chen
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Jingyu Liu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Panpan Duan
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Mulin Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Wen Liu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
- State Key Laboratory of Microbial Metabolism, School of Life Science & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
- Huzhou Center of Bio-Synthetic Innovation, Huzhou 313000, China
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222
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Zhang Y, Xue Y, Li G, Yuan H, Luo T. Enantioselective synthesis of Iboga alkaloids and vinblastine via rearrangements of quaternary ammoniums. Chem Sci 2016; 7:5530-5536. [PMID: 30034694 PMCID: PMC6021789 DOI: 10.1039/c6sc00932h] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 05/13/2016] [Indexed: 11/21/2022] Open
Abstract
An efficient and novel strategy for the enantioselective syntheses of various iboga alkaloids has been developed. The salient features include a gold-catalyzed oxidation of a terminal alkyne followed by cyclization, a Stevens rearrangement and a tandem sequence that combines the gold-catalyzed oxidation, cyclization and [1,2]-shift. The catharanthine analogs provided by our approach were further converted to the vinca alkaloid vinblastine and its analogs, which confirmed the remarkable sensitivity of the cytotoxicity to the C20' substituent of vinblastine.
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Affiliation(s)
- Yun Zhang
- Laboratory of Chemical Genomics , School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen 518055 , China
| | - Yibin Xue
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education , Beijing National Laboratory for Molecular Science (BNLMS) , College of Chemistry and Molecular Engineering , Peking-Tsinghua Center for Life Sciences , Academy for Advanced Interdisciplinary Studies , Peking University , Beijing 100871 , China .
| | - Gang Li
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education , Beijing National Laboratory for Molecular Science (BNLMS) , College of Chemistry and Molecular Engineering , Peking-Tsinghua Center for Life Sciences , Academy for Advanced Interdisciplinary Studies , Peking University , Beijing 100871 , China .
| | - Haosen Yuan
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education , Beijing National Laboratory for Molecular Science (BNLMS) , College of Chemistry and Molecular Engineering , Peking-Tsinghua Center for Life Sciences , Academy for Advanced Interdisciplinary Studies , Peking University , Beijing 100871 , China .
| | - Tuoping Luo
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education , Beijing National Laboratory for Molecular Science (BNLMS) , College of Chemistry and Molecular Engineering , Peking-Tsinghua Center for Life Sciences , Academy for Advanced Interdisciplinary Studies , Peking University , Beijing 100871 , China .
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223
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Li L, Wang H, Yu S, Yang X, Li X. Cooperative Co(III)/Cu(II)-Catalyzed C–N/N–N Coupling of Imidates with Anthranils: Access to 1H-Indazoles via C–H Activation. Org Lett 2016; 18:3662-5. [DOI: 10.1021/acs.orglett.6b01716] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lei Li
- Dalian Institute of Chemical
Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - He Wang
- Dalian Institute of Chemical
Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Songjie Yu
- Dalian Institute of Chemical
Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xifa Yang
- Dalian Institute of Chemical
Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xingwei Li
- Dalian Institute of Chemical
Physics, Chinese Academy of Sciences, Dalian 116023, China
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224
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Roudier M, Constantieux T, Quintard A, Rodriguez J. Triple Iron/Copper/Iminium Activation for the Efficient Redox Neutral Catalytic Enantioselective Functionalization of Allylic Alcohols. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01102] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Mylène Roudier
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille 13397, France
| | | | - Adrien Quintard
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille 13397, France
| | - Jean Rodriguez
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille 13397, France
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225
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Auto-Tandem Catalysis in Ionic Liquids: Synthesis of 2-Oxazolidinones by Palladium-Catalyzed Oxidative Carbonylation of Propargylic Amines in EmimEtSO₄. Molecules 2016; 21:molecules21070897. [PMID: 27399662 PMCID: PMC6273147 DOI: 10.3390/molecules21070897] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 07/01/2016] [Accepted: 07/05/2016] [Indexed: 01/18/2023] Open
Abstract
A convenient carbonylative approach to 2-oxazolidinone derivatives carried out using an ionic liquid (1-ethyl-3-methylimidazolium ethyl sulfate, EmimEtSO₄) as the solvent is presented. It is based on the sequential concatenation of two catalytic cycles, both catalyzed by the same metal species (auto-tandem catalysis): the first cycle corresponds to the oxidative monoaminocarbonylation of the triple bond of propargylic amines to give the corresponding 2-ynamide intermediates, while the second one involves the cyclocarbonylation of the latter to yield 2-(2-oxooxazolidin-5-ylidene)-acetamides. Reactions are carried out using a simple catalytic system consisting of PdI₂ in conjunction with an excess of KI, and the catalyst/solvent system could be recycled several times without appreciable loss of activity after extraction of the organic product with Et₂O.
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226
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Ganss S, Breit B. Enantioselective Rhodium-Catalyzed Atom-Economical Macrolactonization. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604301] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Stephanie Ganss
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
| | - Bernhard Breit
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
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227
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Ganss S, Breit B. Enantioselective Rhodium-Catalyzed Atom-Economical Macrolactonization. Angew Chem Int Ed Engl 2016; 55:9738-42. [DOI: 10.1002/anie.201604301] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Stephanie Ganss
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
| | - Bernhard Breit
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
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228
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Gulías M, Mascareñas JL. Metallkatalysierte Anellierungen durch Aktivierung und Spaltung von C-H-Bindungen. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201511567] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) und Departamento de Química Orgánica, 15782; Universidade de Santiago de Compostela; Spanien
| | - José Luis Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) und Departamento de Química Orgánica, 15782; Universidade de Santiago de Compostela; Spanien
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229
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Gulías M, Mascareñas JL. Metal-Catalyzed Annulations through Activation and Cleavage of C−H Bonds. Angew Chem Int Ed Engl 2016; 55:11000-19. [DOI: 10.1002/anie.201511567] [Citation(s) in RCA: 406] [Impact Index Per Article: 50.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 02/17/2016] [Indexed: 12/27/2022]
Affiliation(s)
- Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, 15782; Universidade de Santiago de Compostela; Spain
| | - José Luis Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, 15782; Universidade de Santiago de Compostela; Spain
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230
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Gomes NGM, Dasari R, Chandra S, Kiss R, Kornienko A. Marine Invertebrate Metabolites with Anticancer Activities: Solutions to the "Supply Problem". Mar Drugs 2016; 14:E98. [PMID: 27213412 PMCID: PMC4882572 DOI: 10.3390/md14050098] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 04/29/2016] [Accepted: 05/05/2016] [Indexed: 02/07/2023] Open
Abstract
Marine invertebrates provide a rich source of metabolites with anticancer activities and several marine-derived agents have been approved for the treatment of cancer. However, the limited supply of promising anticancer metabolites from their natural sources is a major hurdle to their preclinical and clinical development. Thus, the lack of a sustainable large-scale supply has been an important challenge facing chemists and biologists involved in marine-based drug discovery. In the current review we describe the main strategies aimed to overcome the supply problem. These include: marine invertebrate aquaculture, invertebrate and symbiont cell culture, culture-independent strategies, total chemical synthesis, semi-synthesis, and a number of hybrid strategies. We provide examples illustrating the application of these strategies for the supply of marine invertebrate-derived anticancer agents. Finally, we encourage the scientific community to develop scalable methods to obtain selected metabolites, which in the authors' opinion should be pursued due to their most promising anticancer activities.
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Affiliation(s)
- Nelson G M Gomes
- REQUIMTE/LAQV, Laboratory of Pharmacognosy, Department of Chemistry, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira No. 228, 4050-313 Porto, Portugal.
| | - Ramesh Dasari
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA.
| | - Sunena Chandra
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA.
| | - Robert Kiss
- Laboratoire de Cancérologie et de Toxicologie Expérimentale, Faculté de Pharmacie, Université Libre de Bruxelles, Campus de la Plaine, CP205/1, Boulevard du Triomphe, 1050 Brussels, Belgium.
| | - Alexander Kornienko
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA.
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231
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Ma HW, Chen PM, Lo JX, Lin YC, Huang SL, Chen CR, Chia PY. Domino Cyclization of 1,n-Enynes (n = 7, 8, 9) Giving Derivatives of Pyrane, Chromene, Fluorene, Phenanthrene and Dibenzo[7]annulene by Ruthenium Complexes. J Org Chem 2016; 81:4494-505. [DOI: 10.1021/acs.joc.6b00260] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hao-Wei Ma
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
| | - Pei-Min Chen
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
| | - Ji-Xian Lo
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
| | - Ying-Chih Lin
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
| | - Shou-Ling Huang
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
| | - Chi-Ren Chen
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
| | - Pi-Yeh Chia
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
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232
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Bunno Y, Murakami N, Suzuki Y, Kanai M, Yoshino T, Matsunaga S. Cp*CoIII-Catalyzed Dehydrative C–H Allylation of 6-Arylpurines and Aromatic Amides Using Allyl Alcohols in Fluorinated Alcohols. Org Lett 2016; 18:2216-9. [DOI: 10.1021/acs.orglett.6b00846] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Youka Bunno
- Faculty
of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Nanami Murakami
- Faculty
of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Yudai Suzuki
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Motomu Kanai
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tatsuhiko Yoshino
- Faculty
of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
- ACT-C, Japan Science
and Technology Agency, Sapporo 060-0812, Japan
| | - Shigeki Matsunaga
- Faculty
of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
- ACT-C, Japan Science
and Technology Agency, Sapporo 060-0812, Japan
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233
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Zhuo C, Fürstner A. Concise Synthesis of a Pateamine A Analogue with In Vivo Anticancer Activity Based on an Iron‐Catalyzed Pyrone Ring Opening/Cross‐Coupling. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201602125] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Chun‐Xiang Zhuo
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
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234
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Zhuo C, Fürstner A. Concise Synthesis of a Pateamine A Analogue with In Vivo Anticancer Activity Based on an Iron‐Catalyzed Pyrone Ring Opening/Cross‐Coupling. Angew Chem Int Ed Engl 2016; 55:6051-6. [DOI: 10.1002/anie.201602125] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Chun‐Xiang Zhuo
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
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235
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Affiliation(s)
- István Gábor Molnár
- Institute for Organic Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Ryan Gilmour
- Institute for Organic Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
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236
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Tao ZL, Adili A, Shen HC, Han ZY, Gong LZ. Catalytic Enantioselective Assembly of Homoallylic Alcohols from Dienes, Aryldiazonium Salts, and Aldehydes. Angew Chem Int Ed Engl 2016; 55:4322-6. [DOI: 10.1002/anie.201600148] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Zhong-Lin Tao
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Alafate Adili
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Hong-Cheng Shen
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Zhi-Yong Han
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Liu-Zhu Gong
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin China
- High Magnetic Field Laboratory; Hefei Institutes of Physical Science, CAS; Hefei 230031 China
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237
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Tao ZL, Adili A, Shen HC, Han ZY, Gong LZ. Catalytic Enantioselective Assembly of Homoallylic Alcohols from Dienes, Aryldiazonium Salts, and Aldehydes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600148] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Zhong-Lin Tao
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Alafate Adili
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Hong-Cheng Shen
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Zhi-Yong Han
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Liu-Zhu Gong
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin China
- High Magnetic Field Laboratory; Hefei Institutes of Physical Science, CAS; Hefei 230031 China
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238
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Liang X, Jiang SZ, Wei K, Yang YR. Enantioselective Total Synthesis of (−)-Alstoscholarisine A. J Am Chem Soc 2016; 138:2560-2. [PMID: 26882407 DOI: 10.1021/jacs.6b00625] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Xiao Liang
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shi-Zhi Jiang
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Kun Wei
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yu-Rong Yang
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
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239
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Kelsey JS, Cataisson C, Chen J, Herrmann MA, Petersen ME, Baumann DO, McGowan KM, Yuspa SH, Keck GE, Blumberg PM. Biological activity of the bryostatin analog Merle 23 on mouse epidermal cells and mouse skin. Mol Carcinog 2016; 55:2183-2195. [PMID: 26859836 DOI: 10.1002/mc.22460] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 01/06/2016] [Accepted: 01/06/2016] [Indexed: 12/19/2022]
Abstract
Bryostatin 1, a complex macrocyclic lactone, is the subject of multiple clinical trials for cancer chemotherapy. Although bryostatin 1 biochemically functions like the classic mouse skin tumor promoter phorbol 12-myristate 13-acetate (PMA) to bind to and activate protein kinase C, paradoxically, it fails to induce many of the typical phorbol ester responses, including tumor promotion. Intense synthetic efforts are currently underway to develop simplified bryostatin analogs that preserve the critical functional features of bryostatin 1, including its lack of tumor promoting activity. The degree to which bryostatin analogs maintain the unique pattern of biological behavior of bryostatin 1 depends on the specific cellular system and the specific response. Merle 23 is a significantly simplified bryostatin analog that retains bryostatin like activity only to a limited extent. Here, we show that in mouse epidermal cells the activity of Merle 23 was either similar to bryostatin 1 or intermediate between bryostatin 1 and PMA, depending on the specific parameter examined. We then examined the hyperplastic and tumor promoting activity of Merle 23 on mouse skin. Merle 23 showed substantially reduced hyperplasia and was not tumor promoting at a dose comparable to that for PMA. These results suggest that there may be substantial flexibility in the design of bryostatin analogs that retain its lack of tumor promoting activity. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Jessica S Kelsey
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Christophe Cataisson
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Jinqiu Chen
- Collaborative Protein Technology Resource, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Michelle A Herrmann
- Collaborative Protein Technology Resource, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Mark E Petersen
- Department of Chemistry, University of Utah, Salt Lake City, Utah
| | - David O Baumann
- Department of Chemistry, University of Utah, Salt Lake City, Utah
| | - Kevin M McGowan
- Department of Chemistry, University of Utah, Salt Lake City, Utah
| | - Stuart H Yuspa
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Gary E Keck
- Department of Chemistry, University of Utah, Salt Lake City, Utah
| | - Peter M Blumberg
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
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240
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Tan SM, Willis AC, Paddon‐Row MN, Sherburn MS. Multicomponent Diene‐Transmissive Diels–Alder Sequences Featuring Aminodendralenes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510925] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Siu Min Tan
- Research School of Chemistry Australian National University Canberra ACT 0200 Australia
| | - Anthony C. Willis
- Research School of Chemistry Australian National University Canberra ACT 0200 Australia
| | | | - Michael S. Sherburn
- Research School of Chemistry Australian National University Canberra ACT 0200 Australia
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241
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Tan SM, Willis AC, Paddon‐Row MN, Sherburn MS. Multicomponent Diene‐Transmissive Diels–Alder Sequences Featuring Aminodendralenes. Angew Chem Int Ed Engl 2016; 55:3081-5. [PMID: 26823233 DOI: 10.1002/anie.201510925] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Siu Min Tan
- Research School of Chemistry Australian National University Canberra ACT 0200 Australia
| | - Anthony C. Willis
- Research School of Chemistry Australian National University Canberra ACT 0200 Australia
| | | | - Michael S. Sherburn
- Research School of Chemistry Australian National University Canberra ACT 0200 Australia
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242
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Popov K, Hoang A, Somfai P. Concise Total Synthesis of Dehaloperophoramidine. Angew Chem Int Ed Engl 2016; 55:1801-4. [PMID: 26676910 DOI: 10.1002/anie.201510661] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Indexed: 11/09/2022]
Abstract
Perophoramidine, dehaloperophoramidine, and communesin F are structurally related alkaloids having intriguing polycyclic structures. A strategy for the synthesis of dehaloperophoramidine has been developed. In this synthesis all skeletal atoms and all functional groups required to reach the target molecule are incorporated early in the sequence. This approach led to the discovery of two novel substrate-specific domino processes, one encompassing four steps and the other comprising five steps, thus resulting in an eight-step synthesis of dehaloperophoramidine.
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Affiliation(s)
- Kirill Popov
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, 22100, Lund, Sweden
| | - Anita Hoang
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, 22100, Lund, Sweden
| | - Peter Somfai
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, 22100, Lund, Sweden. .,Institute of Technology, University of Tartu, Nooruse 1, 50411, Tartu, Estonia.
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243
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Metternich JB, Gilmour R. One Photocatalyst, n Activation Modes Strategy for Cascade Catalysis: Emulating Coumarin Biosynthesis with (-)-Riboflavin. J Am Chem Soc 2016; 138:1040-5. [PMID: 26714650 DOI: 10.1021/jacs.5b12081] [Citation(s) in RCA: 188] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Generating molecular complexity using a single catalyst, where the requisite activation modes are sequentially exploited as the reaction proceeds, is an attractive guiding principle in synthesis. This requires that each substrate transposition exposes a catalyst activation mode (AM) to which all preceding or future intermediates are resistant. While this concept is exemplified by MacMillan's beautiful merger of enamine and iminium ion activation, examples in other fields of contemporary catalysis remain elusive. Herein, we extend this tactic to organic photochemistry. By harnessing the two discrete photochemical activation modes of (-)-riboflavin, it is possible to sequentially induce isomerization and cyclization by energy transfer (ET) and single-electron transfer (SET) activation pathways, respectively. This catalytic approach has been utilized to emulate the coumarin biosynthesis pathway, which features a key photochemical E → Z isomerization step. Since the ensuing SET-based cyclization eliminates the need for a prefunctionalized aryl ring, this constitutes a novel disconnection of a pharmaceutically important scaffold.
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Affiliation(s)
- Jan B Metternich
- Institute for Organic Chemistry, Westfälische Wilhelms-Universität Münster , Corrensstrasse 40, 48149 Münster, Germany
| | - Ryan Gilmour
- Institute for Organic Chemistry, Westfälische Wilhelms-Universität Münster , Corrensstrasse 40, 48149 Münster, Germany
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244
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Harada K, Tezuka N, Hirano K, Miyamoto K, Saito T, Uchiyama M. Rhodium-Catalyzed (Perfluoroalkyl)olefination of Acetanilides Leading to Perfluoroalkylated Aromatics. Chem Pharm Bull (Tokyo) 2016; 64:1442-1444. [DOI: 10.1248/cpb.c16-00588] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Kohei Harada
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
| | - Noriyuki Tezuka
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
| | - Keiichi Hirano
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
| | | | - Tatsuo Saito
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
- Elements Chemistry Laboratory, RIKEN Center for Sustainable Resource Science, RIKEN
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245
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Rajarathinam B, Kumaravel K, Vasuki G. Green chemistry oriented multi-component strategy to hybrid heterocycles. RSC Adv 2016. [DOI: 10.1039/c6ra11543h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An oxindole decorated 4H-chromene scaffold has been synthesized in water under catalyst-free reaction conditions at ambient temperature by integrating the guiding principles of Diversity Oriented Synthesis (DOS) and green chemistry.
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246
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Samame RA, Owens CM, Rychnovsky SD. Concise synthesis of (+)-fastigiatine. Chem Sci 2016; 7:188-190. [PMID: 28966768 PMCID: PMC5580306 DOI: 10.1039/c5sc03262h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 09/25/2015] [Indexed: 01/31/2023] Open
Abstract
(+)-Fastigiatine was assembled in six steps from (R)-5-methylcyclohex-2-en-1-one. Intermolecular Diels-Alder reaction introduced most of the carbon atoms for the target. The two Boc-protected nitrogen atom building blocks were introduced by a Suzuki coupling and a cuprate addition. A biomimetic transannular Mannich reaction generated the two quaternary centers at a late stage. Each step builds core bonds, and combined with a minimalist protecting group strategy, this approach led to a very concise synthesis.
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Affiliation(s)
- Renzo A Samame
- Department of Chemistry , University of California , 1102 Natural Sciences II , Irvine , CA 92697 , USA .
| | - Christina M Owens
- Theravance Biopharma Inc. , 901 Gateway Boulevard , South San Francisco , CA 94080 , USA
| | - Scott D Rychnovsky
- Department of Chemistry , University of California , 1102 Natural Sciences II , Irvine , CA 92697 , USA .
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247
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Affiliation(s)
- Kirill Popov
- Centre for Analysis and Synthesis; Department of Chemistry; Lund University; 22100 Lund Sweden
| | - Anita Hoang
- Centre for Analysis and Synthesis; Department of Chemistry; Lund University; 22100 Lund Sweden
| | - Peter Somfai
- Centre for Analysis and Synthesis; Department of Chemistry; Lund University; 22100 Lund Sweden
- Institute of Technology; University of Tartu; Nooruse 1 50411 Tartu Estonia
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248
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Song C, Dang Y, Tao Y, Wang ZX. DFT Mechanistic Study of Functionalizations of ω-Ene-Cyclopropanes and Alkylidenecyclopropanes via Allylic C–H and C–C Bond Cleavage Facilitated by a Zirconocene Complex. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00650] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chunyu Song
- School of Chemistry and Chemical
Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Yanfeng Dang
- School of Chemistry and Chemical
Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Yuan Tao
- School of Chemistry and Chemical
Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-Xiang Wang
- School of Chemistry and Chemical
Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
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249
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Shu XZ, Schienebeck CM, Li X, Zhou X, Song W, Chen L, Guzei IA, Tang W. Rhodium-Catalyzed Stereoselective Intramolecular [5 + 2] Cycloaddition of 3-Acyloxy 1,4-Enyne and Alkene. Org Lett 2015; 17:5128-31. [PMID: 26440751 DOI: 10.1021/acs.orglett.5b02665] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The first rhodium-catalyzed intramolecular [5 + 2] cycloaddition of 3-acyloxy 1,4-enyne and alkene was developed. The cycloaddition is highly diastereoselective in most cases. Various cis-fused bicyclo[5.3.0]decadienes were prepared stereoselectively. The chirality in the propargylic ester starting materials could be transferred to the bicyclic products with high efficiency. Electron-deficient phosphine ligand greatly facilitated the cycloaddition. Up to three new stereogenic centers could be generated. The resulting diene in the products could be hydrolyzed to enones, which allowed the introduction of more functional groups to the seven-membered ring.
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Affiliation(s)
- Xing-zhong Shu
- School of Pharmacy, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - Casi M Schienebeck
- School of Pharmacy, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - Xiaoxun Li
- School of Pharmacy, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - Xin Zhou
- School of Pharmacy, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - Wangze Song
- School of Pharmacy, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - Lianqing Chen
- School of Pharmacy, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - Ilia A Guzei
- Department of Chemistry, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
| | - Weiping Tang
- School of Pharmacy, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States.,Department of Chemistry, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
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250
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Sun B, Yoshino T, Kanai M, Matsunaga S. Cp*Co
III
Catalyzed Site‐Selective CH Activation of Unsymmetrical
O
‐Acyl Oximes: Synthesis of Multisubstituted Isoquinolines from Terminal and Internal Alkynes. Angew Chem Int Ed Engl 2015; 54:12968-72. [DOI: 10.1002/anie.201507744] [Citation(s) in RCA: 261] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Bo Sun
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo‐ku, Tokyo 113‐0033 (Japan)
| | - Tatsuhiko Yoshino
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita‐ku, Sapporo 060‐0812 (Japan)
- ACT‐C (Japan) Science and Technology Agency (Japan)
| | - Motomu Kanai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo‐ku, Tokyo 113‐0033 (Japan)
| | - Shigeki Matsunaga
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita‐ku, Sapporo 060‐0812 (Japan)
- ACT‐C (Japan) Science and Technology Agency (Japan)
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