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Fukuyama Y, Kubo M, Harada K. Neurotrophic Natural Products. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2024; 123:1-473. [PMID: 38340248 DOI: 10.1007/978-3-031-42422-9_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Abstract
Neurotrophins (NGF, BDNF, NT3, NT4) can decrease cell death, induce differentiation, as well as sustain the structure and function of neurons, which make them promising therapeutic agents for the treatment of neurodegenerative disorders. However, neurotrophins have not been very effective in clinical trials mostly because they cannot pass through the blood-brain barrier owing to being high-molecular-weight proteins. Thus, neurotrophin-mimic small molecules, which stimulate the synthesis of endogenous neurotrophins or enhance neurotrophic actions, may serve as promising alternatives to neurotrophins. Small-molecular-weight natural products, which have been used in dietary functional foods or in traditional medicines over the course of human history, have a great potential for the development of new therapeutic agents against neurodegenerative diseases such as Alzheimer's disease. In this contribution, a variety of natural products possessing neurotrophic properties such as neurogenesis, neurite outgrowth promotion (neuritogenesis), and neuroprotection are described, and a focus is made on the chemistry and biology of several neurotrophic natural products.
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Affiliation(s)
- Yoshiyasu Fukuyama
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 770-8514, Japan.
| | - Miwa Kubo
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 770-8514, Japan
| | - Kenichi Harada
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 770-8514, Japan
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2
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Affiliation(s)
- Sibadatta Senapati
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
| | - Shyamsundar Das
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
| | - Chepuri V. Ramana
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
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Kang C, Park H, Lee JK, Choi TL. Cascade Polymerization via Controlled Tandem Olefin Metathesis/Metallotropic 1,3-Shift Reactions for the Synthesis of Fully Conjugated Polyenynes. J Am Chem Soc 2017; 139:11309-11312. [DOI: 10.1021/jacs.7b04913] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Cheol Kang
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
| | - Hyeon Park
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
| | - Jin-Kyung Lee
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
| | - Tae-Lim Choi
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
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5
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Weber SM, Hilt G. Control of the Regioselectivity in Cobalt- versus Ruthenium-Catalyzed Alder-ene Reaction of Unsymmetrical 1,3-Diynes. Org Lett 2017; 19:564-567. [DOI: 10.1021/acs.orglett.6b03729] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sebastian M. Weber
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, D-35043 Marburg, Germany
| | - Gerhard Hilt
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, D-35043 Marburg, Germany
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6
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Homocoupling reactions of terminal alkynes and arylboronic compounds catalyzed by in situ formed Al(OH) 3 -supported palladium nanoparticles. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.09.035] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Mao J, Zhong J, Wang B, Jin J, Li S, Gao Z, Yang H, Bian Q. Synthesis of panaxytriol and its stereoisomers as potential antitumor drugs. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.03.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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8
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Wang L, Shou PP, Wei SP, Zhang C, Li SX, Liu PX, Du X, Wang Q. Total Synthesis of Chiral Falcarindiol Analogues Using BINOL-Promoted Alkyne Addition to Aldehydes. Molecules 2016; 21:E112. [PMID: 26797597 PMCID: PMC6274458 DOI: 10.3390/molecules21010112] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Revised: 01/06/2016] [Accepted: 01/07/2016] [Indexed: 12/04/2022] Open
Abstract
An enantioselective total synthesis of chiral falcarindiol analogues from buta-1,3-diyn-1-yltriisopropylsilane is reported. The key step in this synthesis is BINOL-promoted asymmetric diacetylene addition to aldehydes. The two chiral centers of the falcarindiol analogues can be produced by using the same kind of catalyst with high selectivity, and the final product can be obtained in only six steps.
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Affiliation(s)
- Li Wang
- Department of Medicinal Chemistry, Sichuan Medical University, Luzhou 646000, China.
| | - Ping-Ping Shou
- Department of Medicinal Chemistry, Sichuan Medical University, Luzhou 646000, China.
| | - Si-Ping Wei
- Department of Medicinal Chemistry, Sichuan Medical University, Luzhou 646000, China.
| | - Chun Zhang
- Department of Medicinal Chemistry, Sichuan Medical University, Luzhou 646000, China.
| | - Shuang-Xun Li
- Department of Medicinal Chemistry, Sichuan Medical University, Luzhou 646000, China.
| | - Ping-Xian Liu
- Department of Medicinal Chemistry, Sichuan Medical University, Luzhou 646000, China.
| | - Xi Du
- Department of Medicinal Chemistry, Sichuan Medical University, Luzhou 646000, China.
| | - Qin Wang
- Department of Medicinal Chemistry, Sichuan Medical University, Luzhou 646000, China.
- Key Laboratory of Medicinal Electrophysiology of Ministry of Education, Sichuan Medical University, Luzhou 646000, China.
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9
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Sabbasani VR, Yun SY, Lee D. Structure and reactivity of sulfonamide- and acetate-chelated ruthenium alkylidene complexes. Org Chem Front 2016. [DOI: 10.1039/c6qo00148c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The formation of chelated ruthenium alkylidenes with the oxygen of sulfonamides and acetates and their complexation with carbon monoxide have been studied.
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Affiliation(s)
| | - Sang Young Yun
- Department of Chemistry
- University of Illinois at Chicago
- Chicago
- USA
| | - Daesung Lee
- Department of Chemistry
- University of Illinois at Chicago
- Chicago
- USA
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10
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Wang KP, Cho EJ, Yun SY, Rhee JY, Lee D. Regio- and stereoselectivity in the concatenated enyne cross metathesis–metallotropic [1,3]-shift of terminal 1,3-diyne. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.08.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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11
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Singh GS, Mollet K, D’hooghe M, De Kimpe N. Epihalohydrins in Organic Synthesis. Chem Rev 2012; 113:1441-98. [DOI: 10.1021/cr3003455] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Girija S. Singh
- Chemistry Department, Faculty
of Science, University of Botswana, Private
Bag 0022, Gaborone, Botswana
| | - Karen Mollet
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent,
Belgium
| | - Matthias D’hooghe
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent,
Belgium
| | - Norbert De Kimpe
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent,
Belgium
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12
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Clark JR, French JM, Jecs E, Diver ST. Geminal Alkene–Alkyne Cross Metathesis Using a Relay Strategy. Org Lett 2012; 14:4178-81. [DOI: 10.1021/ol301846q] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Joseph R. Clark
- Department of Chemistry, University at Buffalo, The State University of New York, Amherst, New York 14260, United States
| | - Jonathan M. French
- Department of Chemistry, University at Buffalo, The State University of New York, Amherst, New York 14260, United States
| | - Edgars Jecs
- Department of Chemistry, University at Buffalo, The State University of New York, Amherst, New York 14260, United States
| | - Steven T. Diver
- Department of Chemistry, University at Buffalo, The State University of New York, Amherst, New York 14260, United States
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13
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Yun SY, Wang KP, Kim M, Lee D. Nonmetathetic Activity of Ruthenium Alkylidene Complexes: 1,4-Hydrovinylative Cyclization of Multiynes with Ethylene. J Am Chem Soc 2012; 134:10783-6. [PMID: 22708641 DOI: 10.1021/ja304255h] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sang Young Yun
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago,
Illinois 60607-7061, United States
| | - Kung-Pern Wang
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago,
Illinois 60607-7061, United States
| | - Mansuk Kim
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago,
Illinois 60607-7061, United States
| | - Daesung Lee
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago,
Illinois 60607-7061, United States
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14
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1,2,3-triazole: unique ligand in promoting iron-catalyzed propargyl alcohol dehydration. Org Lett 2012; 14:2358-61. [PMID: 22524511 DOI: 10.1021/ol300778e] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A 1,2,3-traizole-promoted iron(III)-catalyzed propargyl alcohol dehydration was developed for the synthesis of conjugated enynes. The desired conjugated enynes were prepared in good to excellent yields (up to 95%) with a large substrate scope and excellent stereoselectivity (only Z-isomers).
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15
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Kumaraswamy G, Sadaiah K, Raghu N. An organocatalytic enantioselective synthesis of (+)-duryne. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.tetasy.2012.04.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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16
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A flexible organocatalytic enantioselective synthesis of heptadeca-1-ene-4,6-diyne-3S,8R,9S,10S-tetrol and its congeners. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.10.058] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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17
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Affiliation(s)
- Jingwei Li
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL 60607‐7061, USA, Fax: +1‐312‐996‐0431
| | - Daesung Lee
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL 60607‐7061, USA, Fax: +1‐312‐996‐0431
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19
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Abstract
This short account discusses the awesome power of metathesis which has profoundly changed the practice of natural product synthesis during the last decade. Since a comprehensive coverage is beyond the scope of this highlight article, I shall focus on the conceptual framework and on significant advances since the turn of the century.
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Affiliation(s)
- Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany.
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20
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Li JX, Liang HR, Wang ZY, Fu JH. 3,4-Dihalo-2(5H)-furanones: a novel oxidant for the Glaser coupling reaction. MONATSHEFTE FUR CHEMIE 2011. [DOI: 10.1007/s00706-011-0479-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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21
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Kwon SH, Lee HJ, Cho CW. Concise Asymmetric Formal Synthesis of Pyrrolopiperazinone Natural Products by Tandem Cross Metathesis/Intramolecular Aza-Conjugate Addition. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.1.315] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Kafle B, Bhattarai BR, Cho HJ. Barbituric Acid Derivatives as Protein Tyrosine Phosphatase Inhibitors. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.1.31] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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23
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24
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Affiliation(s)
- Jingwei Li
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, USA
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25
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Trost BM, Chan VS, Yamamoto D. Enantioselective ProPhenol-catalyzed addition of 1,3-diynes to aldehydes to generate synthetically versatile building blocks and diyne natural products. J Am Chem Soc 2010; 132:5186-92. [PMID: 20307084 DOI: 10.1021/ja910656b] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly enantioselective method for the catalytic addition of terminal 1,3-diynes to aldehydes was developed using our dinuclear zinc ProPhenol (1) system. Furthermore, triphenylphosphine oxide was found to interact synergistically with the catalyst to substantially enhance the chiral recognition. The generality of this catalytic transformation was demonstrated with aryl, alpha,beta-unsaturated and saturated aldehydes, of which the latter were previously limited in alkynyl zinc additions. The chiral diynol products are also versatile building blocks that can be readily elaborated; this was illustrated through highly selective trans-hydrosilylations, which enabled the synthesis of a beta-hydroxyketone and enyne. Additionally, the development of this method allowed for the rapid total syntheses of several biologically important diynol-containing natural products.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, USA
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26
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Yun SY, Wang KP, Kim M, Lee D. Initiation and Termination Mode of Enyne Cross-Metathesis and Metallotropic [1,3]-Shift Controlled by Remote Substituents. J Am Chem Soc 2010; 132:8840-1. [PMID: 20550133 DOI: 10.1021/ja1020525] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sang Young Yun
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061
| | - Kung-Pern Wang
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061
| | - Mansuk Kim
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061
| | - Daesung Lee
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061
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27
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Recent Progress on Enyne Metathesis: Its Application to Syntheses of Natural Products and Related Compounds. MATERIALS 2010. [PMCID: PMC5445882 DOI: 10.3390/ma3032087] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Olefin metathesis using ruthenium carbene complexes is a useful method in synthetic organic chemistry. Enyne metathesis is also catalyzed by these complexes and various carbo- and heterocycles could be synthesized from the corresponding enynes. Dienyne metathesis, cross enyne metathesis and ring-opening enyne metathesis have been further developed. Various complicated compounds, such as the natural products and the related biologically active substances, could be synthesized using these metatheses reactions. Skeletal reorganization using the transition metals and metallotropic rearrangement are also discussed.
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28
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2008. Coord Chem Rev 2010. [DOI: 10.1016/j.ccr.2009.07.018] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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29
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Wang KP, Yun SY, Lee D, Wink DJ. Structure and reactivity of alkyne-chelated ruthenium alkylidene complexes. J Am Chem Soc 2009; 131:15114-5. [PMID: 19799424 PMCID: PMC2830144 DOI: 10.1021/ja907155r] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The isolation and structural characterization of alkyne-bound Ru alkylidene complexes has been elusive. However, a sequential enyne ring-closing metathesis of a diyne moiety and metallotropic [1,3]-shift followed by a second enyne ring-closing metathesis allowed the formation of a highly stable alkyne-chelated ruthenium complex. The full characterization of this complex was realized by NMR spectroscopy and X-ray crystallography.
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Affiliation(s)
- Kung-Pern Wang
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061
| | - Sang Young Yun
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061
| | - Daesung Lee
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061
| | - Donald J. Wink
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061
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30
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Singh FV, Amaral MF, Stefani HA. Synthesis of symmetrical 1,3-diynes via homocoupling reaction of n-butyl alkynyltellurides. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.03.078] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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31
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Yun SY, Kim M, Lee D, Wink DJ. Structure and reactivity of alkynyl ruthenium alkylidenes. J Am Chem Soc 2009; 131:24-5. [PMID: 19093858 DOI: 10.1021/ja806218x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The isolation and structural characterization of alkynyl Ru-alkylidene species has been elusive owing to their rapid metallotropic shift and fast turnover. The enyne ring-closing metathesis and relay metathesis provides the platform to form a variety of alkynyl Ru-alkylidene species possessing a sterically and electronically different substituent on the carbenic carbon, which allowed their regio-controlled trapping and structural characterization.
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Affiliation(s)
- Sang Young Yun
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, USA
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32
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Li J, Park S, Miller RL, Lee D. Tandem enyne metathesis-metallotropic [1,3]-shift for a concise total syntheses of (+)-asperpentyn, (-)-harveynone, and (-)-tricholomenyn A. Org Lett 2009; 11:571-4. [PMID: 19115846 DOI: 10.1021/ol802675j] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A tandem reaction sequence involving relay metathesis-induced enyne RCM and metallotropic [1,3]-shift is an effective tool to construct cyclic alkenes with embedded 1,5-dien-3-yne moieties from acyclic precursors containing a 1,3-diyne. Total syntheses of (+)-asperpentyn, (-)-harveynone, and (-)-tricholomenyn A have been accomplished by implementing this metathesis-based tandem reaction sequence as the key step.
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Affiliation(s)
- Jingwei Li
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, USA
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33
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Xie Q, Denton RW, Parker KA. A relay ring-closing metathesis synthesis of dihydrooxasilines, precursors of (Z)-iodo olefins. Org Lett 2008; 10:5345-8. [PMID: 19006314 PMCID: PMC2765515 DOI: 10.1021/ol802063h] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A convenient Grubbs II metathesis provides dihydrooxasilines by relay RCM (RRCM). Dihydrooxasilines undergo ring opening to give Z-vinyl silanes. These can then be converted to Z-vinyl iodides. This sequence provides a short, high yield, and convenient route to trisubstituted Z-vinyl iodides, useful intermediates for the preparation of polypropionate antibiotics.
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Affiliation(s)
- Qiuzhe Xie
- Department of Chemistry, SUNY Stony Brook, Stony Brook, New York 11794-3400
| | - Richard W. Denton
- Department of Chemistry, SUNY Stony Brook, Stony Brook, New York 11794-3400
| | - Kathlyn A. Parker
- Department of Chemistry, SUNY Stony Brook, Stony Brook, New York 11794-3400
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34
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Ng F, Yun H, Lei X, Danishefsky SJ, Fahey J, Stephenson K, Flexner C, Lee L. (3R, 9R, 10R)-Panaxytriol: A molecular-based nutraceutical with possible application to cancer prevention and treatment. Tetrahedron Lett 2008; 49:7178-7179. [PMID: 20011028 DOI: 10.1016/j.tetlet.2008.09.169] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Panaxytriol is a nutraceutical-based active constituent of Korean red ginseng and is reported to exhibit potent anti-tumor properties. Its activity may be in part due to its induction of phase 2 chemoprotective enzymes. Its unique properties may have important implications in cancer therapeutics.
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Affiliation(s)
- Fay Ng
- Department of Chemistry, Columbia University, 3000 Broadway, New York, NY 10027, USA
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35
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Evano G, Blanchard N, Toumi M. Copper-mediated coupling reactions and their applications in natural products and designed biomolecules synthesis. Chem Rev 2008; 108:3054-131. [PMID: 18698737 DOI: 10.1021/cr8002505] [Citation(s) in RCA: 1700] [Impact Index Per Article: 106.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Gwilherm Evano
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles Saint Quentin en Yvelines, 45 avenue des Etats-Unis, 78035 Versailles Cedex, France.
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