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Chatterjee B, Mondal D, Bera S. Macrocyclization Strategies Towards the Synthesis of Amphidinolide Natural Products. ASIAN J ORG CHEM 2023. [DOI: 10.1002/ajoc.202200702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Affiliation(s)
- Bhaskar Chatterjee
- Department of Chemistry Nabadwip Vidyasagar College 741302 Nabadwip West Bengal India
| | - Dhananjoy Mondal
- School of Chemical Sciences Central University of Gujarat 382030 Gandhinagar Gujarat (India
| | - Smritilekha Bera
- School of Chemical Sciences Central University of Gujarat 382030 Gandhinagar Gujarat (India
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2
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Sato T, Suto T, Nagashima Y, Mukai S, Chida N. Total Synthesis of Skipped Diene Natural Products. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100421] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Takaaki Sato
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Takahiro Suto
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Yoshiyuki Nagashima
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Shori Mukai
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Noritaka Chida
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
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3
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Unzue A, Cribiú R, Hoffman MM, Knehans T, Lafleur K, Caflisch A, Nevado C. Iriomoteolides: novel chemical tools to study actin dynamics. Chem Sci 2018; 9:3793-3802. [PMID: 29780512 PMCID: PMC5939837 DOI: 10.1039/c7sc04286h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 03/10/2018] [Indexed: 01/25/2023] Open
Abstract
Despite its promising biological profile, the cellular targets of iriomoteolide-3a, a novel 15-membered macrolide isolated from Amphidinium sp., have remained unknown. A small library of non-natural iriomoteolide-3a analogues is presented here as a result of a novel, highly convergent, catalysis-based scaffold-diversification campaign, which revealed the suitable sites for chemical editing in the original core. We provide compelling experimental evidence for actin as one of iriomoteolides' primary cellular targets, establishing the ability of these secondary metabolites to inhibit cell migration, induce severe morphological changes in cells and cause a reversible cytoplasmic retraction and reduction of F-actin fibers in a time and dose dependent manner. These results are interpreted in light of the ability of iriomoteolides to stabilize F-actin filaments. Molecular dynamics simulations provide evidence for iriomoteolide-3a binding to the barbed end of G-actin. These results showcase iriomoteolides as novel and easily tunable chemical probes for the in vitro study of actin dynamics in the context of cell motility processes including cell invasion and division.
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Affiliation(s)
- A Unzue
- Department of Chemistry , University of Zürich , Winterthurerstrasse 190 , CH-8057 , Zürich , Switzerland .
| | - R Cribiú
- Department of Chemistry , University of Zürich , Winterthurerstrasse 190 , CH-8057 , Zürich , Switzerland .
| | - M M Hoffman
- Department of Chemistry , University of Zürich , Winterthurerstrasse 190 , CH-8057 , Zürich , Switzerland .
| | - T Knehans
- Department of Biochemistry , University of Zürich , Winterthurerstrasse 190 , CH-8057 , Zürich , Switzerland .
| | - K Lafleur
- Department of Chemistry , University of Zürich , Winterthurerstrasse 190 , CH-8057 , Zürich , Switzerland .
| | - A Caflisch
- Department of Biochemistry , University of Zürich , Winterthurerstrasse 190 , CH-8057 , Zürich , Switzerland .
| | - C Nevado
- Department of Chemistry , University of Zürich , Winterthurerstrasse 190 , CH-8057 , Zürich , Switzerland .
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4
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Martínez-Arranz S, Presa-Soto D, Carriedo GA, Presa Soto A, Albéniz AC. Polyphosphazenes for the Stille reaction: a new type of recyclable stannyl reagent. Dalton Trans 2016; 45:2227-36. [PMID: 26583466 DOI: 10.1039/c5dt02670a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A random phosphazene copolymer {[N = P((CH2)7-Br)Ph]0.5[N = PMePh]0.5}n (2) and a block copolyphosphazene {[N = P((CH2)7-Br)Ph]0.5[N = PMePh]0.5}45-b-[N = P(O2C12H8)]55 (5), having a branch with two randomly distributed units, have been synthesized and used as precursors for the stannyl derivatives {[N = P((CH2)7-SnBu2An)Ph]0.5[N = PMePh]0.5}n (3) and {[N = P((CH2)7-SnBu2An)Ph]0.5[N = PMePh]0.5}45-b-[N = P(O2C12H8)]55 (6, An = p-MeOC6H4). Polymers 3 and 6 were tested as recyclable tin reagents in the Stille cross-coupling reaction with ArI, using various Pd catalysts and different experimental conditions. Polymer 6 can be recycled without a significant release of tin, but its efficiency decreased after three consecutive cycles. This effect was explained by studying the self-assembly of the polymer under the same conditions used for the catalytic experiments, which evidenced the progressive coalescence of the polymeric vesicles (polymersomes) leading to stable and bigger core-shell aggregates by the attraction of the [N = P(O2C12H8)] rich membranes, thus decreasing the accessibility of the tin active centers.
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5
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Ronson TO, Taylor RJ, Fairlamb IJ. Palladium-catalysed macrocyclisations in the total synthesis of natural products. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.11.009] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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6
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Chatterjee B, Bera S, Mondal D. Julia–Kocienski olefination: a key reaction for the synthesis of macrolides. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2013.09.027] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Mahapatra S, Carter RG. Exploiting hidden symmetry in natural products: total syntheses of amphidinolides C and F. J Am Chem Soc 2013; 135:10792-803. [PMID: 23845005 PMCID: PMC3786714 DOI: 10.1021/ja404796n] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The total synthesis of amphidinolide C and a second-generation synthesis of amphidinolide F have been accomplished through the use of a common intermediate to access both the C1-C8 and the C18-C25 sections. The development of a Ag-catalyzed cyclization of a propargyl benzoate diol is described to access both trans-tetrahydrofuran rings. The evolution of a Felkin-controlled, 2-lithio-1,3-dienyl addition strategy to incorporate C9-C11 diene as well as C8 stereocenter is detailed. Key controlling aspects in the sulfone alkylation/oxidative desulfurization to join the major subunits, including the exploration of the optimum masking group for the C18 carbonyl motif, are discussed. A Trost asymmetric alkynylation and a stereoselective cuprate addition to an alkynoate have been developed for the rapid construction of the C26-C34 subunit. A Tamura/Vedejs olefination to introduce the C26 side arm of amphidnolides C and F is employed. The late-stage incorporation of the C15, C18 diketone motif proved critical to the successful competition of the total syntheses.
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Affiliation(s)
- Subham Mahapatra
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, USA
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8
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Lu L, Zhang W, Nam S, Horne DA, Jove R, Carter RG. Amphidinolide B: total synthesis, structural investigation, and biological evaluation. J Org Chem 2013; 78:2213-47. [PMID: 23406192 PMCID: PMC3631602 DOI: 10.1021/jo3026077] [Citation(s) in RCA: 20] [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
The total syntheses of amphidinolide B1 and the proposed structure of amphidinolide B2 have been accomplished. Key aspects of this work include the development of a practical, non-transition-metal-mediated method for the construction of the C13-C15 diene, the identification of α-chelation and dipole minimization models for diastereoselective methyl ketone aldol reactions, the discovery of a spontaneous Horner-Wadsworth-Emmons macrocyclization strategy, and the development of a novel late stage method for construction of an allylic epoxide moiety. The originally proposed structure for amphidinolide B2 and diastereomers thereof display potent antitumor activities with IC50 values ranging from 3.3 to 94.5 nM against human solid and blood tumor cells. Of the different stereoisomers, the proposed structure of amphidinolide B2 is over 12-fold more potent than the C8,9-epimer and C18-epimer in human DU145 prostate cancer cells. These data suggest that the epoxide stereochemistry is a significant factor for anticancer activity.
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Affiliation(s)
- Liang Lu
- Department of Chemistry, Oregon State University, Corvallis, OR 97331
| | - Wei Zhang
- Department of Chemistry, Oregon State University, Corvallis, OR 97331
| | - Sangkil Nam
- Department of Molecular Medicine, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - David A. Horne
- Department of Molecular Medicine, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Richard Jove
- Department of Molecular Medicine, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Rich G. Carter
- Department of Chemistry, Oregon State University, Corvallis, OR 97331
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9
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Martínez-Arranz S, Carrera N, Albéniz AC, Espinet P, Vidal-Moya A. Batch Stille Coupling with Insoluble and Recyclable Stannylated Polynorbornenes. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200624] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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10
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Yu Y, Li Z, Jiang L. A Novel Synthesis of 2-Alkylthiobenzothiazoles and 2-Alkylthiobenzoxazoles. PHOSPHORUS SULFUR 2012. [DOI: 10.1080/10426507.2011.636229] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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11
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Carrera N, Salinas-Castillo A, Albéniz AC, Espinet P, Mallavia R. Fluorene-based stannylated polymers and their use as recyclable reagents in the Stille reaction. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.07.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Vrancken E, Gérard H, Linder D, Ouizem S, Alouane N, Roubineau E, Bentayeb K, Marrot J, Mangeney P. Diastereodivergent Behavior of Alkyl versus Cyano Allenylcuprates toward Aldehydes: A Key Role for Lithium. J Am Chem Soc 2011; 133:10790-802. [DOI: 10.1021/ja200702a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Emmanuel Vrancken
- Institut Charles Gerhardt Montpellier, UMR 5253, CNRS-UM2-UM1-ENSCM, 8, rue de l’école Normale, 34296 Montpellier, France
| | - Hélène Gérard
- Laboratoire de Chimie Théorique, UMR 7616, UPMC—Université Paris 06, CNRS case 137, 4 Place Jussieu, 75262 Paris Cedex 05, France
| | - David Linder
- Laboratoire de Chimie Organique, UMR 7611 Institut de Chimie Moléculaire, FR 2769, UPMC—Université Paris 06, CNRS case 43, 4 Place Jussieu, 75262 Paris Cedex 05, France
| | - Souad Ouizem
- Laboratoire de Chimie Organique, UMR 7611 Institut de Chimie Moléculaire, FR 2769, UPMC—Université Paris 06, CNRS case 43, 4 Place Jussieu, 75262 Paris Cedex 05, France
| | - Nacira Alouane
- Laboratoire de Chimie Organique, UMR 7611 Institut de Chimie Moléculaire, FR 2769, UPMC—Université Paris 06, CNRS case 43, 4 Place Jussieu, 75262 Paris Cedex 05, France
| | - Eve Roubineau
- Institut Charles Gerhardt Montpellier, UMR 5253, CNRS-UM2-UM1-ENSCM, 8, rue de l’école Normale, 34296 Montpellier, France
| | - Kamel Bentayeb
- Laboratoire de Chimie Organique, UMR 7611 Institut de Chimie Moléculaire, FR 2769, UPMC—Université Paris 06, CNRS case 43, 4 Place Jussieu, 75262 Paris Cedex 05, France
| | - Jérôme Marrot
- Institut Lavoisier de Versailles, UMR 8180, Université de Versailles, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France
| | - Pierre Mangeney
- Laboratoire de Chimie Organique, UMR 7611 Institut de Chimie Moléculaire, FR 2769, UPMC—Université Paris 06, CNRS case 43, 4 Place Jussieu, 75262 Paris Cedex 05, France
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13
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Volchkov I, Park S, Lee D. Ring strain-promoted allylic transposition of cyclic silyl ethers. Org Lett 2011; 13:3530-3. [PMID: 21648455 DOI: 10.1021/ol2013473] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Relief of the ring strain of medium-sized rings promotes a regioselective allylic transposition of a C-O bond when catalyzed by rhenium oxide. Through the allylic transposition, eight-membered cyclic silyl ethers undergo ring contraction to the corresponding six-membered siloxacycles.
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Affiliation(s)
- Ivan Volchkov
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, USA
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14
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Affiliation(s)
- Ana C. Albéniz
- IU CINQUIMA/Química Inorgánica, Universidad de Valladolid, 47071 Valladolid. Spain, Fax: +34‐983423013
| | - Nora Carrera
- IU CINQUIMA/Química Inorgánica, Universidad de Valladolid, 47071 Valladolid. Spain, Fax: +34‐983423013
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15
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Fürstner A. From Total Synthesis to Diverted Total Synthesis: Case Studies in the Amphidinolide Series. Isr J Chem 2011. [DOI: 10.1002/ijch.201100006] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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16
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Shen YC, Wang GP. Homocoupling of polyfluorovinylstannanes mediated by a novel combination of CuCl/2,2′-dipyridyl. Stereospecific synthesis of polyfluorinated alka-2,4-dienes. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.20040220903] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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17
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Negishi EI, Wang G, Rao H, Xu Z. Alkyne elementometalation-Pd-catalyzed cross-coupling. Toward synthesis of all conceivable types of acyclic alkenes in high yields, efficiently, selectively, economically, and safely: "green" way. J Org Chem 2010; 75:3151-82. [PMID: 20465291 PMCID: PMC2933819 DOI: 10.1021/jo1003218] [Citation(s) in RCA: 118] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Palladium-catalyzed cross-coupling reactions, especially those involving Zn, Al, Zr (Negishi coupling), and B (Suzuki coupling), collectively have brought about "revolutionary" changes in organic synthesis. Thus, two regio- and stereodefined carbon groups generated as R(1)M (M = Zn, Al, B, Cu, Zr, etc.) and R(2)X (X = I, Br, OTs, etc.) may now be cross-coupled to give R(1)-R(2) with essentially full retention of all structural features. For alkene syntheses, alkyne elementometalation reactions including hydrometalation (B, Al, Zr, etc.), carbometalation (Cu, Al-Zr, etc.), and haloboration (BX(3) where X is Cl, Br, and I) have proven to be critically important. Some representative examples of highly efficient and selective (>or=98%) syntheses of di-, tri-, and oligoenes containing regio- and stereodefined di- and trisubstituted alkenes of all conceivable types will be discussed with emphasis on those of natural products. Some interesting but undesirable cases involving loss of the initial structural identities of the alkenyl groups are attributable to the formation of allylpalladium species, which must be either tamed or avoided. Some such examples involving the synthesis of 1,3-, 1,4-, and 1,5-dienes will also be discussed.
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Affiliation(s)
- Ei-Ichi Negishi
- Herbert C. Brown Laboratories of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907-2084, USA.
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Cribiú R, Jäger C, Nevado C. Syntheses and biological evaluation of iriomoteolide 3a and analogues. Angew Chem Int Ed Engl 2010; 48:8780-3. [PMID: 19813232 DOI: 10.1002/anie.200903379] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Riccardo Cribiú
- Organic Chemistry Institute, Universität Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
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19
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Cribiú R, Jäger C, Nevado C. Synthese und biologische Evaluierung von Iriomoteolid-3a und seinen Analoga. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200903379] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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20
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Fürstner A, Flügge S, Larionov O, Takahashi Y, Kubota T, Kobayashi J. Total synthesis and biological evaluation of amphidinolide V and analogues. Chemistry 2009; 15:4011-29. [PMID: 19241434 DOI: 10.1002/chem.200802068] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The awesome power of metathesis is illustrated by a concise synthesis of the extremely scarce marine natural product amphidinolide V, which hinges on a sequence of ring-closing alkyne metathesis followed by intermolecular enyne metathesis with ethylene (see scheme). As a complete set of conceivable stereoisomers was prepared, the constitution and absolute configuration of this macrolide could be established and first insights into structure-activity relationships governing its cytotoxicity were obtained.A sequence of ring-closing alkyne metathesis followed by an intermolecular enyne metathesis of the resulting cycloalkyne with ethene was used to forge the macrocyclic skeleton and to set the vicinal exo-methylene branches characteristic for the cytotoxic marine natural product amphidinolide V (1). Comparison of the synthetic material with an authentic sample of this extremely scarce metabolite isolated from a dinoflagellate of the Amphidinium sp. eliminated any doubts about its structure and allowed the absolute configuration of amphidinolide V to be determined as 8R,9S,10S,13R. Moreover, the flexibility inherent to the underlying synthesis blueprint also opened access to a comprehensive set of diastereomers of 1 as well as to synthetic analogues differing from the natural lead in the lipophilic chains appended to the macrocyclic core. This set of designed analogues gave first insights into structure-activity relationships, which revealed that the stereostructure of the macrolactone is a highly critical parameter, whereas the examined alterations of the side chain did not diminish the cytotoxicity of the compounds to any notable extent.
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Affiliation(s)
- Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, 45470 Mülheim/Ruhr, Germany
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21
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Fürstner A, Kattnig E, Kelter G, Fiebig HH. Molecular Editing and Biological Evaluation of Amphidinolide X and Y. Chemistry 2009; 15:4030-43. [DOI: 10.1002/chem.200802069] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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22
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Total Syntheses of Amphidinolides B1, B4, G1, H1 and Structure Revision of Amphidinolide H2. Chemistry 2009; 15:3983-4010. [DOI: 10.1002/chem.200802067] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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23
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Affiliation(s)
- Christophe Aïssa
- Department of Chemistry, University of Liverpool, Crown Street, L69 7ZD, Liverpool, England
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24
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Carrera N, Gutiérrez E, Benavente R, Villavieja M, Albéniz A, Espinet P. Stannylated Polynorbornenes as New Reagents for a Clean Stille Reaction. Chemistry 2008; 14:10141-8. [DOI: 10.1002/chem.200800558] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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25
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Troast DM, Yuan J, Porco JA. Studies Toward the Synthesis of (-)-Zampanolide: Preparation of the Macrocyclic Core. Adv Synth Catal 2008; 350:1701-1711. [PMID: 23543877 PMCID: PMC3612024 DOI: 10.1002/adsc.200800247] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Studies towards the synthesis of the macrocyclic core of (-)-zampanolide are reported. The synthetic approach features a one-pot reduction/vinylogous aldol reaction for construction of the C15-C20 fragment, an intramolecular silyl-modified Sakurai (ISMS) reaction for construction of the 2,6-cis-disubstituted exo-methylene pyran subunit, and use of an sp2-sp3 Stille reaction for macrocyclization.
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Affiliation(s)
- Dawn M. Troast
- Department of Chemistry, Center for Chemical Methodology and Library Development, Boston University, 590 Commonwealth Avenue, Boston, MA 02215, USA
| | - Jiayi Yuan
- Department of Chemistry, Center for Chemical Methodology and Library Development, Boston University, 590 Commonwealth Avenue, Boston, MA 02215, USA
| | - John A. Porco
- Department of Chemistry, Center for Chemical Methodology and Library Development, Boston University, 590 Commonwealth Avenue, Boston, MA 02215, USA
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26
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Yamamoto Y. Silver-Catalyzed Csp−H and Csp−Si Bond Transformations and Related Processes. Chem Rev 2008; 108:3199-222. [DOI: 10.1021/cr078359u] [Citation(s) in RCA: 196] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yoshihiko Yamamoto
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, Ookatyama, Meguro-ku, Tokyo 152-8552, Japan
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27
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Suresh V, Jon Paul Selvam J, Rajesh K, Venkateswarlu Y. Total synthesis of aculeatins A and B from d-glucose. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.05.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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28
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Studies on the Total Synthesis of Amphidinolide O (III): A Stereoselective Synthesis of C1-C11 Fragment. B KOREAN CHEM SOC 2008. [DOI: 10.5012/bkcs.2008.29.2.297] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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29
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Fürstner A, Bouchez L, Funel JA, Liepins V, Porée FH, Gilmour R, Beaufils F, Laurich D, Tamiya M. Total Syntheses of Amphidinolide H and G. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200704024] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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30
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Fürstner A, Bouchez L, Funel JA, Liepins V, Porée FH, Gilmour R, Beaufils F, Laurich D, Tamiya M. Total Syntheses of Amphidinolide H and G. Angew Chem Int Ed Engl 2007; 46:9265-70. [DOI: 10.1002/anie.200704024] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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31
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Crimmins MT, Ellis JM. An Intramolecular Diels−Alder Strategy for the Asbestinins: Enantioselective Total Syntheses of 11-Acetoxy-4-deoxyasbestinin D and Asbestinin-12. J Org Chem 2007; 73:1649-60. [DOI: 10.1021/jo0712695] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michael T. Crimmins
- Department of Chemistry, Venable and Kenan Laboratories of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290
| | - J. Michael Ellis
- Department of Chemistry, Venable and Kenan Laboratories of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290
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32
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Guillarme S, Plé K, Banchet A, Liard A, Haudrechy A. Alkynylation of chiral aldehydes: alkoxy-, amino-, and thio-substituted aldehydes. Chem Rev 2007; 106:2355-403. [PMID: 16771453 DOI: 10.1021/cr0509915] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stéphane Guillarme
- Laboratoire de Glycosynthèse, UMR 6519, UFR Sciences Exactes et Naturelles, Bât. 18, BP 1039, 51687 Reims Cedex 2, France
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33
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Fürstner A, Larionov O, Flügge S. What is Amphidinolide V? Report on a Likely Conquest. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200701640] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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34
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Fürstner A, Larionov O, Flügge S. What is Amphidinolide V? Report on a Likely Conquest. Angew Chem Int Ed Engl 2007; 46:5545-8. [PMID: 17579914 DOI: 10.1002/anie.200701640] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, 45470 Mülheim an der Ruhr, Germany.
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35
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Abstract
Four amphidinolide E stereoisomers, amphidinolide E (1), 2-epi-amphidinolide E (2), 19-epi-amphidinolide E (3), and 2-epi-19-epi-amphidinolide E (4), have been synthesized via the judicious union of aldehyde 5, allylsilanes 7 or 8, acids 9 or 10, and vinylstannane 6. The C19 stereocenters of the C19 epimeric allylsilanes 7 and 8 were introduced via crotylboration reactions early in the synthesis. [3+2]-Annulation reactions of aldehyde 5 with allylsilanes 7 and 8 were employed to set the core tetrahydrofuran units of 1-4. Finally, the C2 stereocenter was installed by esterification using acid 9, without incident, or with acid 10, in which case an unexpected and completely stereoselective inversion of C2 occurs.
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Affiliation(s)
- Porino Va
- Departments of Chemistry and Biochemistry, Scripps Florida, Jupiter, Florida 33458
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36
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Va P, Roush WR. Synthesis of 2-epi-amphidinolide E: an unexpected and highly selective C(2)inversion during an esterification reaction. Org Lett 2007; 9:307-10. [PMID: 17217291 PMCID: PMC2593877 DOI: 10.1021/ol0628098] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A synthesis of 2-epi-amphidinolide E (1) has been accomplished via an unexpected and highly diastereoselective C(2) stereochemical inversion during the modified Yamaguchi esterification of alcohol 4b and Fe(CO)3-complexed dienoic acid 7. [reaction: see text].
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Affiliation(s)
- Porino Va
- Departments of Chemistry and Biochemistry, Scripps Florida, Jupiter, Florida 33458, USA
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37
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Nicolaou KC, Snyder SA. Chasing molecules that were never there: misassigned natural products and the role of chemical synthesis in modern structure elucidation. Angew Chem Int Ed Engl 2007; 44:1012-1044. [PMID: 15688428 DOI: 10.1002/anie.200460864] [Citation(s) in RCA: 479] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Over the course of the past half century, the structural elucidation of unknown natural products has undergone a tremendous revolution. Before World War II, a chemist would have relied almost exclusively on the art of chemical synthesis, primarily in the form of degradation and derivatization reactions, to develop and test structural hypotheses in a process that often took years to complete when grams of material were available. Today, a battery of advanced spectroscopic methods, such as multidimensional NMR spectroscopy and high-resolution mass spectrometry, not to mention X-ray crystallography, exist for the expeditious assignment of structures to highly complex molecules isolated from nature in milligram or sub-milligram quantities. In fact, it could be argued that the characterization of natural products has become a routine task, one which no longer even requires a reaction flask! This Review makes the case that imaginative detective work and chemical synthesis still have important roles to play in the process of solving nature's most intriguing molecular puzzles.
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Affiliation(s)
- K C Nicolaou
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA, Fax: (+1) 858-784-2469
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Scott A Snyder
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA, Fax: (+1) 858-784-2469
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
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38
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Shen Y, Wang G. Synthesis of α-fluoro-β-trifluoromethyl alka-2,4-dienes. HETEROATOM CHEMISTRY 2007. [DOI: 10.1002/hc.20284] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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39
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Trost BM, Frederiksen MU, Rudd MT. Ruthenium-catalyzed reactions--a treasure trove of atom-economic transformations. Angew Chem Int Ed Engl 2006; 44:6630-66. [PMID: 16206300 DOI: 10.1002/anie.200500136] [Citation(s) in RCA: 452] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The demand for new chemicals spanning the fields of health care to materials science combined with the pressure to produce these substances in an environmentally benign fashion pose great challenges to the synthetic chemical community. The maximization of synthetic efficiency by the conversion of simple building blocks into complex targets remains a fundamental goal. In this context, ruthenium complexes catalyze a number of non-metathesis conversions and allow the rapid assembly of complex molecules with high selectivity and atom economy. These complexes often exhibit unusual reactivity. Careful consideration of the mechanistic underpinnings of the transformations can lead to the design of new reactions and the discovery of new reactivity.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, Stanford, CA 94305-5080, USA.
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40
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Nicolaou KC, Bulger PG, Sarlah D. Palladium-catalyzed cross-coupling reactions in total synthesis. Angew Chem Int Ed Engl 2006; 44:4442-89. [PMID: 15991198 DOI: 10.1002/anie.200500368] [Citation(s) in RCA: 2127] [Impact Index Per Article: 118.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In studying the evolution of organic chemistry and grasping its essence, one comes quickly to the conclusion that no other type of reaction plays as large a role in shaping this domain of science than carbon-carbon bond-forming reactions. The Grignard, Diels-Alder, and Wittig reactions are but three prominent examples of such processes, and are among those which have undeniably exercised decisive roles in the last century in the emergence of chemical synthesis as we know it today. In the last quarter of the 20th century, a new family of carbon-carbon bond-forming reactions based on transition-metal catalysts evolved as powerful tools in synthesis. Among them, the palladium-catalyzed cross-coupling reactions are the most prominent. In this Review, highlights of a number of selected syntheses are discussed. The examples chosen demonstrate the enormous power of these processes in the art of total synthesis and underscore their future potential in chemical synthesis.
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Affiliation(s)
- K C Nicolaou
- Department of Chemistry and Skaggs Institute for Chemical Biology, Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
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41
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Abstract
With the exception of palladium-catalyzed cross-couplings, no other group of reactions has had such a profound impact on the formation of carbon-carbon bonds and the art of total synthesis in the last quarter of a century than the metathesis reactions of olefins, enynes, and alkynes. Herein, we highlight a number of selected examples of total syntheses in which such processes played a crucial role and which imparted to these endeavors certain elements of novelty, elegance, and efficiency. Judging from their short but impressive history, the influence of these reactions in chemical synthesis is destined to increase.
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Affiliation(s)
- K C Nicolaou
- Department of Chemistry and Skaggs Institute for Chemical Biology, Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
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42
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Gradillas A, Pérez-Castells J. Macrocyclization by Ring-Closing Metathesis in the Total Synthesis of Natural Products: Reaction Conditions and Limitations. Angew Chem Int Ed Engl 2006; 45:6086-101. [PMID: 16921569 DOI: 10.1002/anie.200600641] [Citation(s) in RCA: 433] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The construction of macrocycles by ring-closing metathesis (RCM) is often used as the key step in the synthesis of natural products containing large rings. This reaction is attractive because of its high functional group compatibility and the possibility for further transformations. The finding of suitable reaction conditions is critical for the success of the synthesis. In this Minireview we summarize the efforts of many research groups to develop efficient RCM reactions on their way towards the total synthesis of natural macrocyclic products. Their findings should help in future synthesis to reduce the time-consuming phase of the optimization of the reaction conditions.
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Affiliation(s)
- Ana Gradillas
- Departamento de Química, Facultad de Farmacia, Universidad San Pablo-CEU, Urb. Montepríncipe, 28668 Boadilla del Monte, Madrid, Spain
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43
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Gradillas A, Pérez-Castells J. Makrocyclisierung durch Ringschlussmetathese bei der Totalsynthese von Naturstoffen: Reaktionsbedingungen und Grenzen. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200600641] [Citation(s) in RCA: 150] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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44
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Nicolaou KC, Brenzovich WE, Bulger PG, Francis TM. Synthesis of iso-epoxy-amphidinolide N and des-epoxy-caribenolide I structures. Initial forays. Org Biomol Chem 2006; 4:2119-57. [PMID: 16729126 DOI: 10.1039/b602020h] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two strategies for the projected total synthesis of the phenomenally potent antitumour macrolides amphidinolide N (1) and caribenolide I (2) are described. The title compounds are introduced as challenging and unique targets for chemical synthesis, and their retrosynthetic analysis is presented. The synthesis of the four defined key building blocks (10, 39, 67 and 72), required for the construction of amphidinolide N (1), in their enantiomerically pure forms, is described, followed by the coupling of 10, 39 and 72 through hydrazone alkylation processes to generate the complete C6-C29 carbon framework of the target compound (1). Fusion of the remaining C1-C5 sector (72) onto the molecule by metathesis-based methods was unsuccessful, resulting in the adoption of a second-generation strategy which called for the employment of one of the array of palladium-catalysed cross-coupling reactions to generate the C5-C6 carbon-carbon bond. Vinyl bromide 125, representing the C6-C29 skeleton of caribenolide I (2), was prepared through the sequential alkylation of hydrazone 10 with bromide 116 and iodide 55, but failed to engage in the appropriate cross-coupling reaction with a variety of C1-C4 partners. Despite these setbacks, the information gleaned from these endeavours was to prove invaluable in laying the foundation for the eventual successful approach to the macrocyclic structures of amphidinolide N (1) and caribenolide I (2).
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Affiliation(s)
- K C Nicolaou
- Department of Chemistry and Skaggs Institute for Chemical Biology, Scripps Research Institute, La Jolla, California 92037, USA.
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45
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Abstract
[reaction: see text] An efficient synthesis of the C(11)-C(29) fragment 31 of amphidinolide F has been accomplished via a diastereoselective [3 + 2]-annulation reaction of allylsilane 5 and ethyl glyoxylate to prepare the key tetrahydrofuran 15 and a highly stereoselective methyl ketone aldol reaction to generate the C(11)-C(16) segment.
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Affiliation(s)
- J Brad Shotwell
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA
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46
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Ishiyama H, Nakamura Y, Kobayashi J. Asymmetric synthesis of a diastereomer of the structure proposed for amphidinolide A and the determination of its absolute configuration. Tetrahedron 2006. [DOI: 10.1016/j.tet.2005.09.120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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47
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Abstract
An overview of marine natural products synthesis during 2004 is provided. As with the previous installment of this series, the emphasis is on total syntheses of molecules of contemporary interest, new total syntheses, and syntheses that have resulted in structure confirmation or stereochemical assignments.
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Affiliation(s)
- Gillian M Nicholas
- Roche Colorado Corporation, 2075 North 55th St., Boulder, Colorado 80301, USA
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48
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Booker JEM, Boto A, Churchill GH, Green CP, Ling M, Meek G, Prabhakaran J, Sinclair D, Blake AJ, Pattenden G. Approaches to the quaternary stereocentre and to the heterocyclic core in diazonamide A using the Heck reaction and related coupling reactions. Org Biomol Chem 2006; 4:4193-205. [PMID: 17312976 DOI: 10.1039/b609604b] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In model studies towards the quaternary centre at the heart of diazonamide A (early structure 2; revised structure 1), cyclisations of the alkene-substituted iodoaryls 4, 13, 18 and 23, under Heck reaction conditions, were shown to lead to the corresponding benzodihydrofuran 5, benzofuranone 14 and the oxindoles 19 and 24 respectively, in 50-80% yield. Further manipulation of the benzodihydrofuran 5 then led to the intermediates 30, 33 and 39, which make up parts of the oxazole-indole heterocyclic core in diazonamide A. Attempts to perform a corresponding 13-exo-trig Heck cyclisation from the precursor 46a, prepared from 44 and 45, leading to 47 were not successful. A similar outcome was obtained during attempts to effect Heck cyclisations from the ester 57 and the related ether 59. Treatment of the chromene-substituted iodoaryl 62 with Pd(OAc)2, PPh3 and Ag2CO3 led to the spirocycle 64 as a crystalline solid. X-Ray crystal structure analysis established that the quaternary centre in 64 had the same configuration as that present in diazonamide A (1).
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Affiliation(s)
- James E M Booker
- School of Chemistry, The University of Nottingham, Nottingham, NG7 2RD, UK
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49
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Ghosh AK, Gong G. Total Synthesis and Revision of C6 Stereochemistry of (+)-Amphidinolide W. J Org Chem 2005; 71:1085-93. [PMID: 16438525 DOI: 10.1021/jo052181z] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An enantioselective first total synthesis and structural revision of the cytotoxic natural product amphidinolide W is described. We initially investigated a ring-closing metathesis based synthetic strategy to form the 12-membered macrocycle. This strategy was unsuccessful as it led to formation of a 17-membered macrocycle. Subsequently, we explored an alternative strategy that involved cross-metathesis followed by a Yamaguchi macrolactonization reaction sequence utilizing the same key intermediates. This strategy led to the synthesis of amphidinolide W. The synthesis was carried out in a convergent manner, and four of the five stereogenic centers in amphidinolide W were set by asymmetric synthesis. The synthesis features Sharpless asymmetric dihydroxylation, diastereoselective alkylation, efficient cross-metathesis of functionalized substrates, and novel functional group transformations using selective lipase-catalyzed hydrolysis of the primary acetate group. Of particular note, the C6 absolute stereochemistry of amphidinolide W has now been revised through our synthesis.
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Affiliation(s)
- Arun K Ghosh
- Departments of Chemistry and Medicinal Chemistry, Purdue University, West Lafayette, IN 47907, USA.
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50
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Trost BM, Papillon JPN, Nussbaumer T. Ru-catalyzed alkene-alkyne coupling. Total synthesis of amphidinolide P. J Am Chem Soc 2005; 127:17921-37. [PMID: 16351124 PMCID: PMC2533515 DOI: 10.1021/ja055967n] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A coordinatively unsaturated ruthenium complex catalyzed the formation of a carbon-carbon bond between two judiciously chosen alkene and alkyne partners in good yield, and in a chemo- and regioselective fashion, despite the significant degree of unsaturation of the substrates. The resulting 1,4-diene forms the backbone of the cytotoxic marine natural product amphidinolide P. The alkene partner was rapidly assembled from (R)-glycidyl tosylate, which served as a linchpin in a one-flask, sequential three-components coupling process using vinyllithium and a vinyl cyanocuprate. The synthesis of the alkyne partner made use of an unusual anti-selective addition under chelation-control conditions of an allyltin reagent derived from tiglic acid. In addition, a remarkably E-selective E2 process using the azodicarboxylate-triphenylphosphine system is featured. Also featured is the first example of the use of a beta-lactone as a thermodynamic spring to effect macrolactonization. The oxetanone ring was thus used as a productive protecting group that increased the overall efficiency of this total synthesis. This work was also an opportunity to further probe the scope of the ruthenium-catalyzed alkene-alkyne coupling, in particular using enynes, and studies using various functionalized substrates are described.
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Affiliation(s)
- Barry M Trost
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, USA.
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