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Messire G, Massicot F, Pascual L, Riguet E, Vasse JL, Behr JB. Broadening the reaction scope of unprotected aldoses via their corresponding nitrones: 1,3-dipolar cycloadditions with alkenes. Org Biomol Chem 2020; 18:5708-5725. [PMID: 32666987 DOI: 10.1039/d0ob01350a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Condensation reactions of unprotected tetroses and pentoses with hydroxylamines afforded nitrones, which were easily converted to densely functionalized isoxazolidines in the presence of electron-poor alkenes. The 1,3-dipolar cycloaddition occurred with good facial discrimination of the chiral nitrone but under rather low endo/exo control. Stereochemistry of isomers was ascertained by chemical correlation with known derivatives from the literature. Microwave activation appeared as the most efficient reaction mode, affording the expected adducts within several minutes whereas hours were needed under standard heating. Alternatively, the transformation proved also possible under high pressure conditions by using a hand pump system, avoiding any energy source. Although water could not be used as the solvent, leading to hydrolysis of the nitrone substrate, a large variety of organic solvents proved efficient. The method has potential use in the preparation of non-ionic carbohydrate-based amphiphiles.
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Affiliation(s)
- Gatien Messire
- Univ. Reims Champagne-Ardenne, ICMR, CNRS UMR 7312, FR Condorcet CNRS 3417, 51687 Reims Cedex 2, France.
| | - Fabien Massicot
- Univ. Reims Champagne-Ardenne, ICMR, CNRS UMR 7312, FR Condorcet CNRS 3417, 51687 Reims Cedex 2, France.
| | - Laura Pascual
- Univ. Reims Champagne-Ardenne, ICMR, CNRS UMR 7312, FR Condorcet CNRS 3417, 51687 Reims Cedex 2, France.
| | - Emmanuel Riguet
- Univ. Reims Champagne-Ardenne, ICMR, CNRS UMR 7312, FR Condorcet CNRS 3417, 51687 Reims Cedex 2, France.
| | - Jean-Luc Vasse
- Univ. Reims Champagne-Ardenne, ICMR, CNRS UMR 7312, FR Condorcet CNRS 3417, 51687 Reims Cedex 2, France.
| | - Jean-Bernard Behr
- Univ. Reims Champagne-Ardenne, ICMR, CNRS UMR 7312, FR Condorcet CNRS 3417, 51687 Reims Cedex 2, France.
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2
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Hirai T, Shibata K, Niwano Y, Shiozaki M, Hashimoto Y, Morita N, Ban S, Tamura O. Total Synthesis of Neodysiherbaine A via 1,3-Dipolar Cycloaddition of a Chiral Nitrone Template. Org Lett 2017; 19:6320-6323. [PMID: 29155598 DOI: 10.1021/acs.orglett.7b03092] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The total synthesis of neodysiherbaine A was achieved via 1,3-dipolar cycloaddition of a chiral nitrone template with a sugar-derived allyl alcohol in the presence of MgBr2·OEt2. This cycloaddition constructed the C2 and C4 asymmetric centers in a single step. Then reductive cleavage, intramolecular SN2 reaction of the tertiary alcohol, and oxidation of the primary alcohol afforded neodysiherbaine A.
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Affiliation(s)
- Toshihiro Hirai
- Showa Pharmaceutical University , Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Kohki Shibata
- Showa Pharmaceutical University , Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Yohei Niwano
- Showa Pharmaceutical University , Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Masao Shiozaki
- Showa Pharmaceutical University , Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Yoshimitsu Hashimoto
- Showa Pharmaceutical University , Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Nobuyoshi Morita
- Showa Pharmaceutical University , Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Shintaro Ban
- Showa Pharmaceutical University , Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Osamu Tamura
- Showa Pharmaceutical University , Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
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3
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Hashimoto Y, Ishiwata H, Tachikawa S, Ban S, Morita N, Tamura O. Utilization of electron-donating α,β-unsaturated oximes: regioselective inverse 1,3-dipolar cycloaddition of nitrones. Chem Commun (Camb) 2017; 53:2685-2688. [PMID: 28197607 DOI: 10.1039/c7cc00505a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The cycloaddition of nitrones with α,β-unsaturated carbonyl compounds (enones) afforded predominantly 4-acylisoxazolidines, whereas the cycloaddition of the corresponding oximes afforded 5-iminoisoxazolidines. This inverse regioselection is due to HOMO activation by the oxime functionality.
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Affiliation(s)
| | | | - Soko Tachikawa
- Showa Pharmaceutical University, Machida, Tokyo 194-8543, Japan.
| | - Shintaro Ban
- Showa Pharmaceutical University, Machida, Tokyo 194-8543, Japan.
| | - Nobuyoshi Morita
- Showa Pharmaceutical University, Machida, Tokyo 194-8543, Japan.
| | - Osamu Tamura
- Showa Pharmaceutical University, Machida, Tokyo 194-8543, Japan.
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4
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Berthet M, Cheviet T, Dujardin G, Parrot I, Martinez J. Isoxazolidine: A Privileged Scaffold for Organic and Medicinal Chemistry. Chem Rev 2016; 116:15235-15283. [PMID: 27981833 DOI: 10.1021/acs.chemrev.6b00543] [Citation(s) in RCA: 164] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The isoxazolidine ring represents one of the privileged structures in medicinal chemistry, and there have been an increasing number of studies on isoxazolidine and isoxazolidine-containing compounds. Optimization of the 1,3-dipolar cycloaddition (1,3-DC), original methods including electrophilic or palladium-mediated cyclization of unsaturated hydroxylamine, has been developed to obtain isoxazolidines. Novel reactions involving the isoxazolidine ring have been highlighted to accomplish total synthesis or to obtain bioactive compounds, one of the most significant examples being probably the thermic ring contraction applied to the total synthesis of (±)-Gelsemoxonine. The unique isoxazolidine scaffold also exhibits an impressive potential as a mimic of nucleosides, carbohydrates, PNA, amino acids, and steroid analogs. This review aims to be a comprehensive and general summary of the different isoxazolidine syntheses, their use as starting building blocks for the preparation of natural compounds, and their main biological activities.
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Affiliation(s)
- Mathéo Berthet
- Institut des Biomolécules Max Mousseron , IBMM UMR-5247 CNRS, Université de Montpellier, ENSCM, CC17-03, Pl. E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Thomas Cheviet
- Institut des Biomolécules Max Mousseron , IBMM UMR-5247 CNRS, Université de Montpellier, ENSCM, CC17-03, Pl. E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Gilles Dujardin
- Institut des Molécules et Matériaux du Mans , IMMM UMR 6283 CNRS, Université du Maine, UFR Sciences et Techniques, Avenue Olivier Messiaen, 72085 Le Mans, France
| | - Isabelle Parrot
- Institut des Biomolécules Max Mousseron , IBMM UMR-5247 CNRS, Université de Montpellier, ENSCM, CC17-03, Pl. E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron , IBMM UMR-5247 CNRS, Université de Montpellier, ENSCM, CC17-03, Pl. E. Bataillon, 34095 Montpellier Cedex 5, France
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5
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Molchanov AP, Tran TQ, Stepakov AV, Kostikov RR. Reductive cleavage and subsequent transformations of 5-oxa-6-azaspiro[2.4]heptane-1-carboxylates. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2016. [DOI: 10.1134/s1070428016030180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Kabala K, Grzeszczyk B, Stecko S, Furman B, Chmielewski M. Approach to Monobactams and Nocardicins via Diastereoselective Kinugasa Reaction. J Org Chem 2015; 80:12038-46. [DOI: 10.1021/acs.joc.5b01979] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kamil Kabala
- Institute of Organic Chemistry, Polish Academy of Sciences Kasprzaka
44/52, 01-224 Warsaw, Poland
| | - Barbara Grzeszczyk
- Institute of Organic Chemistry, Polish Academy of Sciences Kasprzaka
44/52, 01-224 Warsaw, Poland
| | - Sebastian Stecko
- Institute of Organic Chemistry, Polish Academy of Sciences Kasprzaka
44/52, 01-224 Warsaw, Poland
| | - Bartłomiej Furman
- Institute of Organic Chemistry, Polish Academy of Sciences Kasprzaka
44/52, 01-224 Warsaw, Poland
| | - Marek Chmielewski
- Institute of Organic Chemistry, Polish Academy of Sciences Kasprzaka
44/52, 01-224 Warsaw, Poland
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7
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Hoogenboom J, Zuilhof H, Wennekes T. Versatile Scope of a Masked Aldehyde Nitrone in 1,3-Dipolar Cycloadditions. Org Lett 2015; 17:5550-3. [PMID: 26555778 DOI: 10.1021/acs.orglett.5b02662] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new masked aldehyde-containing nitrone 1 that is easily available through a facile one-step procedure has been developed. It undergoes a [3 + 2]-thermal cycloaddition with a wide range of dipolarophiles, affording isoxazolidine cycloadducts that are suitable for versatile postcycloaddition modifications. The acetal cycloadducts are acid-stable, but allow for acetal hydrolysis under mildly basic conditions. The isoxazolidine ring can be opened via an efficient one-pot procedure to give amine-protected γ-alcohols that can be further converted to furanose derivatives.
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Affiliation(s)
- Jorin Hoogenboom
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands.,Department of Chemical and Materials Engineering, King Abdulaziz University , Jeddah, Saudi Arabia
| | - Tom Wennekes
- Laboratory of Organic Chemistry, Wageningen University , Dreijenplein 8, 6703 HB Wageningen, The Netherlands
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8
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Shpak-Kraievskyi P, Mankou Makaya A, Beauchard A, Martel A, Laurent MY, Dujardin G. [3+2] Route to Quaternary Oxaprolinol Derivatives as Masked Precursors of Disubstituted β3,β3-Amino Aldehyde. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500339] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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9
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Tamura O, Ueda T, Inada M, Morita N. Total Synthesis of Maremycins A and D1 Using Chiral and Cyclic Nitrone with (E)-3-Ethylidene-1-methylindolin-2-one. HETEROCYCLES 2015. [DOI: 10.3987/com-14-s(k)93] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Murat-Onana ML, Berini C, Denis JN, Poisson JF, Minassian F, Pelloux-Léon N. Concise Preparation of Optically Active Heteroaryl α-(Hydroxyamino) Esters. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402322] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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11
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Rhyman L, Ramasami P, Joule JA, Sáez JA, Domingo LR. Understanding the formation of [3+2] and [2+4] cycloadducts in the Lewis acid catalysed reaction between methyl glyoxylate oxime and cyclopentadiene: a theoretical study. RSC Adv 2013. [DOI: 10.1039/c2ra22332e] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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12
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Lim JM, Gam GH, Kim SH, Jang KW, Shin DS. Microwave-assisted Synthesis of Benzo-[1,4]-oxazinones Using MeO-PEG-OMe as Solvent. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2012. [DOI: 10.5012/jkcs.2012.56.4.468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Borthwick AD, Liddle J, Davies DE, Exall AM, Hamlett C, Hickey DM, Mason AM, Smith IED, Nerozzi F, Peace S, Pollard D, Sollis SL, Allen MJ, Woollard PM, Pullen MA, Westfall TD, Stanislaus DJ. Pyridyl-2,5-Diketopiperazines as Potent, Selective, and Orally Bioavailable Oxytocin Antagonists: Synthesis, Pharmacokinetics, and In Vivo Potency. J Med Chem 2012; 55:783-96. [DOI: 10.1021/jm201287w] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Michael J. Allen
- Department of Assay Development
and Compound Profiling, Harlow Research 2, GlaxoSmithKline, New Frontiers, Science Park, Third Avenue, Harlow, Essex CM19 5AD,
U.K
| | | | - Mark A. Pullen
- Department of Urogenital Biology,
Cardiovascular and Urogenital Center of Excellence for Drug Discovery, GlaxoSmithKline Pharmaceuticals, King of Prussia, Pennsylvania,
United States
| | - Timothy D. Westfall
- Department of Urogenital Biology,
Cardiovascular and Urogenital Center of Excellence for Drug Discovery, GlaxoSmithKline Pharmaceuticals, King of Prussia, Pennsylvania,
United States
| | - Dinesh J. Stanislaus
- Safety Assessment, GlaxoSmithKline Pharmaceuticals, King of Prussia, Pennsylvania,
United States
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14
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Nguyen TB, Martel A, Gaulon C, Dhal R, Dujardin G. 1,3-Dipolar Cycloadditions of Nitrones to Heterosubstituted Alkenes. Part 1: Oxa and Aza-substituted Alkenes. ORG PREP PROCED INT 2010. [DOI: 10.1080/00304948.2010.513886] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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15
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Breuning M, Häuser T, Tanzer EM. A Novel One-Pot Procedure for the Stereoselective Synthesis of α-Hydroxy Esters from Ortho Esters. Org Lett 2009; 11:4032-5. [DOI: 10.1021/ol901214n] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Matthias Breuning
- Universität Würzburg, Institut für Organische Chemie, Am Hubland, 97074 Würzburg, Germany
| | - Tobias Häuser
- Universität Würzburg, Institut für Organische Chemie, Am Hubland, 97074 Würzburg, Germany
| | - Eva-Maria Tanzer
- Universität Würzburg, Institut für Organische Chemie, Am Hubland, 97074 Würzburg, Germany
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16
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Kapur A, Kumar K, Singh L, Singh P, Elango M, Subramanian V, Gupta V, Kanwal P, Ishar MPS. Domino routes to substituted benzoindolizines: tandem reorganization of 1,3-dipolar cycloadducts of nitrones with allenic esters/ketones and alternative cycloaddition–palladium catalyzed cyclization pathway. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.03.076] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Moosa BA, Wazeer MIM, Fettouhi MB, Ali SA. Synthesis and stereochemical analysis of some norephedrine-derived isoxazolidines. J PHYS ORG CHEM 2009. [DOI: 10.1002/poc.1454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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18
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Naito T, Ueda M, Miyabe H, Nonoguchi N, Miyata O, Tamura O. Intermolecular Carbon Radical Addition to Cyclic Nitrone. HETEROCYCLES 2009. [DOI: 10.3987/com-08-s(d)39] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Berini C, Pelloux-Léon N, Minassian F, Denis JN. From N-triisopropylsilylpyrrole to an optically active C-4 substituted pyroglutamic acid: total synthesis of penmacric acid. Org Biomol Chem 2009; 7:4512-6. [DOI: 10.1039/b911217k] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Nguyen TB, Martel A, Dhal R, Dujardin G. N-Benzyl Aspartate Nitrones: Unprecedented Single-Step Synthesis and [3 + 2] Cycloaddition Reactions with Alkenes. Org Lett 2008; 10:4493-6. [DOI: 10.1021/ol8017243] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thanh Binh Nguyen
- UCO2M UMR 6011 & IRIM2F FR 2575 CNRS, Université du Maine, 72085, Le Mans, France
| | - Arnaud Martel
- UCO2M UMR 6011 & IRIM2F FR 2575 CNRS, Université du Maine, 72085, Le Mans, France
| | - Robert Dhal
- UCO2M UMR 6011 & IRIM2F FR 2575 CNRS, Université du Maine, 72085, Le Mans, France
| | - Gilles Dujardin
- UCO2M UMR 6011 & IRIM2F FR 2575 CNRS, Université du Maine, 72085, Le Mans, France
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Merino P, Mannucci V, Tejero T. Exploring Nitrone Chemistry: Towards the Enantiodivergent Synthesis of 6-Substituted 4-Hydroxypipecolic Acid Derivatives. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800348] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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22
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Ueda T, Inada M, Okamoto I, Morita N, Tamura O. Synthesis of maremycins A and D1 via cycloaddition of a nitrone with (E)-3-ethylidene-1-methylindolin-2-one. Org Lett 2008; 10:2043-6. [PMID: 18412352 DOI: 10.1021/ol800515w] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A concise synthesis of maremycins A and D1 has been accomplished via cycloaddition of a chiral cyclic nitrone with ( E)-3-ethylidene-1-methylindolin-2-one as a key step. This synthesis clarifies the stereochemistry of the maremycins and is suitable for large-scale synthesis for biological screening.
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Affiliation(s)
- Tohru Ueda
- Showa Pharmaceutical University, 3-3165 Higashi-tamagawagakuen, Machida, Tokyo 194-8543, Japan
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23
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Ali SA, Iman MZ. The Regio-and Stereo-Chemistry of 1,3-Dipolar Cycloaddition of a Chiral Methylenenitrone to 1,2-Disubstituted Alkenes. JOURNAL OF CHEMICAL RESEARCH 2008. [DOI: 10.3184/030823408x287087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A study of regio- and stereo-selectivity in the cycloaddition reactions of a series of symmetrical and unsymmetrical 1,2-disubstituted alkenes to the chiral, internally H-bonded N-(2-hydroxy-1-phenyl)methylenenitrone, has been carried out. The regioselectivity observed in the addition reactions is explained in terms of frontier orbital interactions. The alkenes having a hydroxymethyl substituent at the allylic position are found to undergo regio- as well as highly stereo-selective cycloaddition reactions in the presence of anhydrous magnesium bromide.
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Affiliation(s)
- Shaikh A. Ali
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Muhammad Z.N. Iman
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
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24
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Pouilhès A, Amado AF, Vidal A, Langlois Y, Kouklovsky C. Enantioselective total synthesis of pyrinodemin A. Org Biomol Chem 2008; 6:1502-10. [DOI: 10.1039/b800840j] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Berini C, Minassian F, Pelloux-Léon N, Denis JN, Vallée Y, Philouze C. Efficient stereoselective nucleophilic addition of pyrroles to chiral nitrones. Org Biomol Chem 2008; 6:2574-86. [DOI: 10.1039/b802997k] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Ali SA, Iman MZ. The stereochemistry of 1,3-dipolar cycloaddition of internally H-bonded chiral methylenenitrones. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.06.067] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Broggini G, Colombo F, De Marchi I, Galli S, Martinelli M, Zecchi G. Synthesis of enantiopure 4-amino-3-hydroxymethyl-tetrahydroquinolines via an intramolecular nitrone cycloaddition. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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28
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Singh G, Ishar M, Gupta V, Singh G, Kalyan M, Bhella SS. Intramolecular low-temperature 1,3-dipolar cycloadditions of nitrones: synthesis of chromano-heterocycles. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.03.086] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Tamura O, Mita N, Imai Y, Nishimura T, Kiyotani T, Yamasaki M, Shiro M, Morita N, Okamoto I, Takeya T, Ishibashi H, Sakamoto M. 1,3-Dipolar cycloaddition of α-alkoxycarbonylnitrones with vinyl ethers and allyl alcohols in the presence of Eu(fod)3: selective activation of (Z)-isomers of the nitrones. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.10.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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Tse MK, Jiao H, Anilkumar G, Bitterlich B, Gelalcha FG, Beller M. Synthetic, spectral and catalytic activity studies of ruthenium bipyridine and terpyridine complexes: Implications in the mechanism of the ruthenium(pyridine-2,6-bisoxazoline)(pyridine-2,6-dicarboxylate)-catalyzed asymmetric epoxidation of olefins utilizing H2O2. J Organomet Chem 2006. [DOI: 10.1016/j.jorganchem.2005.12.069] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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31
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New chiral nitrones as precursors of α,α-disubstituted amino-acids, according to the SRS principle. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.tetasy.2006.06.046] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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32
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Pedrosa R, Andrés C, Nieto J, Pérez-Cuadrado C, San Francisco I. An Efficient and Diastereoselective Intramolecular 1,3-Dipolar Cycloaddition of Cyclic Azomethine Ylides and Nitrones. European J Org Chem 2006. [DOI: 10.1002/ejoc.200600242] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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33
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Cordero FM, Bonollo S, Machetti F, Brandi A. The Synthesis of 4-Hydroxypipecolic Acids by Stereoselective Cycloaddition of Configurationally Stable Nitrones. European J Org Chem 2006. [DOI: 10.1002/ejoc.200600104] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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34
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Paul Singh Ishar M, Singh G, Elango M, Subramaniam V. Regio- and Exo-p-Facial Selective 1,3-Dipolar Cycloaddition of a-(3-Pyridyl)-N-phenylnitrone to Norbornadiene: Activation of a p-Bond of Norbornadiene and Control of Regiochemistry of Nitrone Cycloaddition by Nitrone Addition to the Other Double Bond. HETEROCYCLES 2006. [DOI: 10.3987/com-06-10732] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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35
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Singh G, Ishar MPS, Girdhar NK, Singh L. Investigations on regio- and stereoselectivities in cycloadditions involving α- (3-pyridyl)-N-phenylnitrone: Development of an efficient route to novel nicotine analogs. J Heterocycl Chem 2005. [DOI: 10.1002/jhet.5570420603] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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36
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Cantagrel F, Pinet S, Gimbert Y, Chavant PY. Tandem Addition/Cyclization of Alkynylzinc Reagents to Enantiopure 2-tert-Butyl-3,5-dimethyl-2,3-dihydroimidazol-4-oneN-Oxide: Potential Precursors of Quaternary α-Amino Acids. European J Org Chem 2005. [DOI: 10.1002/ejoc.200400861] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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37
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Tamura O, Shiro T, Ogasawara M, Toyao A, Ishibashi H. Stereoselective Syntheses of 4-Hydroxy 4-Substituted Glutamic Acids. J Org Chem 2005; 70:4569-77. [PMID: 15932291 DOI: 10.1021/jo040296h] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The 4-hydroxy 4-substituted glutamic acid moiety is a common substructure of biologically important natural products such as monatin [(2S,4S)-2], lycoperdic acid (3), and dysiherbaine (4). To develop methodology for syntheses of these natural products, cycloadditions of nitrone 5 with 2-substituted 2-propen-1-ols 6 and 2-substituted acrylates 8 were investigated. Reactions of nitrone 5 with alcohols 6 in the presence of MgBr2OEt2 gave cycloadducts 7 in a highly stereoselective manner, whereas noncatalyzed reactions of 5 with acrylates 8 afforded adducts 9. Using the former reaction, syntheses of monatin [(2S,4S)-2], monatin derivative 18, and lycoperdic acid (3) were accomplished. The C4-epimer of monatin [(2S,4R)-2)] was also synthesized by employing the latter cycloaddition.
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Affiliation(s)
- Osamu Tamura
- Division of Pharmaceutical Sciences, Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa 920-1192, Japan.
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38
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Broggini G, Chiesa K, De Marchi I, Martinelli M, Pilati T, Zecchi G. Efficient approach to the unknown isoxazolo[3,4-d]thieno[2,3-b]pyridine system by regioselective intramolecular nitrone cycloadditions. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.01.121] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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39
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Baldwin SW, Long A. 2-tert-Butyl-3-methyl-2,3-dihydroimidazol- 4-one-N-oxide: A New Nitrone-Based Chiral Glycine Equivalent. Org Lett 2004; 6:1653-6. [PMID: 15128259 DOI: 10.1021/ol049505a] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cycloaddition reactions between a new homochiral imidazolone-derived nitrone afford cycloadducts in high yield and with high stereoselectivity. Subsequent cycloadduct elaboration affords the gamma-lactones of gamma-hydroxy-alpha-amino acids as well as the optically pure amino acids themselves.
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Affiliation(s)
- Steven W Baldwin
- Paul M. Gross Chemical Laboratory, Duke University, Durham, North Carolina 27708-0346, USA.
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40
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Hanselmann R, Zhou J, Ma P, Confalone PN. Synthesis of Cyclic and Acyclic β-Amino Acids via Chelation-Controlled 1,3-Dipolar Cycloaddition. J Org Chem 2003; 68:8739-41. [PMID: 14575516 DOI: 10.1021/jo034940o] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Isoxazolidines have been synthesized in diastereomeric excess up to 94% via a MgBr2-induced chelation-controlled 1,3-dipolar cycloaddition reaction with N-hydroxyphenylglycinol as a chiral auxiliary. The diastereomerically pure isoxazolidines were further transformed into cyclic and acyclic beta-amino acid derivatives.
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Affiliation(s)
- Roger Hanselmann
- Bristol-Myers Squibb Pharma Company, Experimental Station, E 336/36, P.O. Box 80336, Wilmington, Delaware 19880-0336, USA.
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41
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Sakamoto M, Kawasaki T, Ishii K, Tamura O. The Chemistry of Pericyclic Reactions and Their Application to Syntheses of Heterocyclic Compounds. YAKUGAKU ZASSHI 2003; 123:717-59. [PMID: 14513766 DOI: 10.1248/yakushi.123.717] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Diels-Alder reactions of benzylidenecyanomethyl-1,3-benzothiazoles 17 and -1,3-benzoxazoles 18 as 1-aza-1,3-butadienes are described. The dienes 17 and 18 featuring stabilized imine moieties in the form of heteroaromatic rings react with both electron-deficient and electron-rich dienophiles to give corresponding cycloadducts regioselectively. The cycloadditions of the intramolecular systems 34c,d and 35c,d proceeded smoothly via the exo-transition state, stereoselectively affording polycyclic compounds 36c,d and 37c,d in good to excellent yields. The diene systems of 17 and 18 were extended to dienes 19a-c with ester groups at diene-4-positions. Dienes 19a-c exhibited high Diels-Alder reactivities with electron-rich alkenes. Dienes 19a-c also reacted with allyl alcohols 55-58 in the presence of stanoxane catalyst 53 to give cycloadducts 59-62 via transesterification and intramolecular cycloaddition. Although alpha-alkoxycarbonylnitrones 64 have been very attractive nitrones for the syntheses of amino acids, the nitrones 64 exist as equilibrating mixtures of (E)-64 and (Z)-64. To solve this problem, three methods were explored: 1) sequential transesterification and intermolecular cycloaddition of nitrones 64 with allyl alcohols; 2) use of chiral and geometry-fixed nitrone 84; and 3) selective activation of (Z)-64 by Eu(fod)3. These methods were applied to syntheses of nikkomycins, clavalanine, and beta-substituted alpha-amino acids. The reactions of photoinduced carbonyl ylides from alpha,beta-unsaturated gamma,delta-epoxy nitriles were studied. Direct irradiation (lambda = 254 nm) of (E)-129 led selectively to products arising from the carbonyl ylide XXV or the carbene intermediate XXVI. The carbonyl ylides generated from (E)-129, (E)-139, and (Z)-143 were trapped with MeOH in the presence of amine, affording the corresponding acetals in moderate yields (Schemes 42 and 43). Photocyclization reactions of delta-hydroxyalkyl epoxy nitriles 148a-e led to spiro acetals arising from the carbonyl ylides (Scheme 45). The photoinduced carbonyl ylides from the epoxy dinitriles 158 and 160-163 underwent 1,3-dipolar cycloaddition with enol ethers, leading to a tetrahydrofuran system (Schemes 49 and 50, Table 14). Electrocyclization of 3-butadienylindoles 184 to intermediary dihydrocarbazoles XXXII followed by elimination of MeOH gave 3-oxyganated carbazoles 185, which were transformed to carbazole alkaloids hyellazole 168, 4-demethoxycarbazomycin B 170 and carazostatin 171, respectively. Claisen rearrangement of 3-(1-amino-1-vinyloxy) indolines derived from 3-hydroxyindolines 192 and amide acetal 193 gave indol-4-ylacetamides 194, which was reduced to afford 4-(2-aminoethyl) indoles 198, which has a framework of biologically active 4-substituted indole compounds. Claisen rearrangement of 3-allyloxyindoles produced in situ by condensation of indolin-3-ones 202 with allyl alcohols 203 and 206-211 gave 2-allylindolin-3-ones 204, 205 and 212-220. The domino reactions, Horner-Wadsworth-Emmons olefination of 2-allyloxyindole 233, isomerization, and Claisen rearrangement produced 3-allylindolin-2-one 234, which was derivatized to 3a-allylpyrrolo [2,3-b] indole alkaloid, flustramine C 221. Reverse aromatic Cope rearrangement of 2-allyl-3-indolidene acetonitriles 241-243, formed by Horner-Wadsworth-Emmons reaction of 2-allylindolin-3-ones 238-240, afforded indoles 244-246.
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Affiliation(s)
- Masanori Sakamoto
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose 204-8588, Japan.
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42
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A concise synthesis of glycosyl-α-amino acid derivatives via homologation of dialdoses into bromo uronic acids and esters. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(03)00321-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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43
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Tamura O, Shiro T, Toyao A, Ishibashi H. Highly stereoselective synthesis of (−)-monatin, a high-intensity sweetener, using chelation-controlled nitrone cycloaddition. Chem Commun (Camb) 2003:2678-9. [PMID: 14649807 DOI: 10.1039/b306791m] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of (-)-monatin was achieved by chelation-controlled cycloaddition of nitrone 2 with allyl alcohol 3a in the presence of MgBr2-OEt2.
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Affiliation(s)
- Osamu Tamura
- Faculty of Pharmaceutical Sciences, Kanazawa University, Takara-machi, Kanazawa 920-0934, Japan.
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44
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Heaney F, Fenlon J, O'Mahony C, McArdle P, Cunningham D. α-Oximono-esters as precursors to heterocycles – generation of oxazinone N-oxides and cycloaddition to alkene dipolarophiles. Org Biomol Chem 2003; 1:4302-16. [PMID: 14685334 DOI: 10.1039/b307077h] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Preparation of a series of terminally and internally substituted delta-alkenyl and delta-alkynyl esters 6, 7 and 9, potential precursors to oxazin-2-one nitrones, has been attempted. Condensation between pyruvic or benzoylformic acid and the appropriate alcohol proceeded smoothly in some cases whilst allylic transposition was a major feature in other cases--most especially during reactions with alpha-vinylbenzyl alcohol. Oximation of pyruvic acid derivatives furnished E-oxime isomers whilst benzoylformic acid derivatives afforded mixed geometrical isomers. The E-oxime of 4a1 carrying an internal Me group undergoes facile thermal cyclisation affording nitrones 1c and 1d in good yield. Oximes E-5a,b with a terminal methyl substituent on the alkene moiety furnish nitrone only under the influence of an external electrophile [PhSeBr/AgBF4]. A terminal Ph substituent on 5c,d prohibits formation of the cyclic dipole irrespective of reaction conditions, and whilst 5d reacts to afford a bicyclic isoxazolofuranone 13 by an IOOC reaction (intramolecular oxime olefin cyclisation) 5c remains thermally inert. Finally delta-alkynyl oximes 9c,d also failed to cyclise. The regio- and stereochemical characteristics of the cycloadditions between the new dipoles and electron poor olefinic dipolarophiles have been investigated. The conditions needed for reaction were rather forcing since the dipoles are somewhat stabilised by the adjacent alkoxycarbonyl group. All reactions proceeded regiospecifically to give adducts with 5-substituted isoxazolidine rings whilst diastereoselectivity varied with the choice of dipolarophile and the steric demands of the nitrone substituents. The phenylselenyl dipole 10a could not be trapped by any dipolarophiles bar dimethyl acetylenedicarboxylate.
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Affiliation(s)
- Frances Heaney
- Department of Chemistry, National University of Ireland, Maynooth, Ireland
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45
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Abstract
The structure and stereochemistry of polyoximic acid, a degradation product of polyoxins, was originally designated as trans-3-ethylidene-L-azetidine-2-carboxylic acid. However, total synthesis revealed that the correct structure was in fact cis-3-ethylidene-L-azetidine-2-carboxylic acid, which was confirmed by X-ray crystallography. The synthesis of the trans-isomer was also done and its identity was confirmed by X-ray analysis as well. The key step for constructing the four-membered ring was a rhodium catalyzed carbenoid insertion into the NH bond of a beta-amino acid derivative. The stereoselectivity of the exo-double bond was controlled by conducting a Horner-Emmons-Wadsworth or a Wittig reaction to generate the trans- and cis-isomers, respectively. Weinreb's amide was used as a latent methyl group for the separation of trans and cis mixtures. The double bond stereochemistry of polyoximic acid in the parent polyoxin was also confirmed to be cis by extensive 2D NMR studies.Key words: diazoinsertion, azetidine, olefination.
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46
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Five-Membered Ring Systems: With O & N Atoms. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s0959-6380(01)80013-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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