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Costanzo M, Cortigiani M, Gillick‐Healy MW, Kelly BG, Monasterolo C, Adamo MFA. Organocatalytic Desymmetrization of Meso‐Aziridines Via Asymmetric Intramolecular Rearrangement. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Martina Costanzo
- Centre for Synthesis and Chemical Biology Department of Chemistry Royal College of Surgeons in Ireland 123 St. Stephen's Green Dublin 2 Ireland
| | - Mauro Cortigiani
- Centre for Synthesis and Chemical Biology Department of Chemistry Royal College of Surgeons in Ireland 123 St. Stephen's Green Dublin 2 Ireland
| | | | - Brian G. Kelly
- Kelada Pharmachem. Ltd A1.01, Science Centre South, Belfield Dublin 4 Ireland
| | - Claudio Monasterolo
- Centre for Synthesis and Chemical Biology School of Chemistry University College Dublin, Belfield Dublin 4 Ireland
| | - Mauro F. A. Adamo
- Centre for Synthesis and Chemical Biology Department of Chemistry Royal College of Surgeons in Ireland 123 St. Stephen's Green Dublin 2 Ireland
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2
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Veerasamy N, Carter RG. Synthesis of quinolizidine-containing lycopodium alkaloids and related natural products. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.06.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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3
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Chattopadhyay AK, Hanessian S. Cyclic enaminones. Part II: applications as versatile intermediates in alkaloid synthesis. Chem Commun (Camb) 2016; 51:16450-67. [PMID: 26490499 DOI: 10.1039/c5cc05892a] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Among many other strategies, the enaminone approach is an important strategy to construct and diversify the azacyclic core in various alkaloids syntheses. In this brief review we discuss the application of cyclic enaminones as building blocks, as well as potential intermediates in the total synthesis of selected alkaloids.
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Affiliation(s)
- Amit Kumar Chattopadhyay
- Department of Chemistry, Université de Montréal, Station Centre Ville, C. P. 6128, Montréal, Qc H3C 3J7, Canada.
| | - Stephen Hanessian
- Department of Chemistry, Université de Montréal, Station Centre Ville, C. P. 6128, Montréal, Qc H3C 3J7, Canada.
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Yokoyama T, Fukami Y, Sato T, Chida N. Synthesis of (±)-Lasubine II Using N-Methoxyamines. Chem Asian J 2016; 11:470-3. [PMID: 26582105 DOI: 10.1002/asia.201501143] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Indexed: 12/28/2022]
Abstract
The synthesis of (±)-lasubine II has been achieved through a three-component allylation capitalizing on the unique properties of N-methoxyamines. This reaction enabled the installation of all the carbon atoms of lasubine II in a single operation. The N-methoxy group was efficiently used for the subsequent nitrone formation. A single-step cyclization of isoxazolidines or N-methoxyamines to form functionalized piperidine rings was also developed.
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Affiliation(s)
- Takashi Yokoyama
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Yutaro Fukami
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Takaaki Sato
- 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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N V G M, Dyapa R, Pansare SV. Formal Synthesis of (+)-Lasubine II and (-)-Subcosine II via Organocatalytic Michael Addition of a Ketone to an α-Nitrostyrene. Org Lett 2015; 17:5312-5. [PMID: 26492086 DOI: 10.1021/acs.orglett.5b02677] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The first examples of an organocatalytic Michael addition of a ketone to in situ generated α-nitrostyrenes are reported. A suitably functionalized γ-nitroketone obtained from the organocatalyzed Michael addition was converted into (+)-2-epi-lasubine II, the immediate synthetic precursor of (+)-lasubine II and (-)-subcosine II (enantiomers of the natural quinolizidine alkaloids). Two of the three stereocenters in (+)-2-epi-lasubine II are set by the Michael reaction.
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Affiliation(s)
- Moorthy N V G
- Department of Chemistry, Memorial University , St. John's, Newfoundland, Canada A1B 3X7
| | - Rajendar Dyapa
- Department of Chemistry, Memorial University , St. John's, Newfoundland, Canada A1B 3X7
| | - Sunil V Pansare
- Department of Chemistry, Memorial University , St. John's, Newfoundland, Canada A1B 3X7
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6
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Abstract
This review of simple indolizidine and quinolizidine alkaloids (i.e., those in which the parent bicyclic systems are in general not embedded in polycyclic arrays) is an update of the previous coverage in Volume 55 of this series (2001). The present survey covers the literature from mid-1999 to the end of 2013; and in addition to aspects of the isolation, characterization, and biological activity of the alkaloids, much emphasis is placed on their total synthesis. A brief introduction to the topic is followed by an overview of relevant alkaloids from fungal and microbial sources, among them slaframine, cyclizidine, Steptomyces metabolites, and the pantocins. The important iminosugar alkaloids lentiginosine, steviamine, swainsonine, castanospermine, and related hydroxyindolizidines are dealt with in the subsequent section. The fourth and fifth sections cover metabolites from terrestrial plants. Pertinent plant alkaloids bearing alkyl, functionalized alkyl or alkenyl substituents include dendroprimine, anibamine, simple alkaloids belonging to the genera Prosopis, Elaeocarpus, Lycopodium, and Poranthera, and bicyclic alkaloids of the lupin family. Plant alkaloids bearing aryl or heteroaryl substituents include ipalbidine and analogs, secophenanthroindolizidine and secophenanthroquinolizidine alkaloids (among them septicine, julandine, and analogs), ficuseptine, lasubines, and other simple quinolizidines of the Lythraceae, the simple furyl-substituted Nuphar alkaloids, and a mixed quinolizidine-quinazoline alkaloid. The penultimate section of the review deals with the sizable group of simple indolizidine and quinolizidine alkaloids isolated from, or detected in, ants, mites, and terrestrial amphibians, and includes an overview of the "dietary hypothesis" for the origin of the amphibian metabolites. The final section surveys relevant alkaloids from marine sources, and includes clathryimines and analogs, stellettamides, the clavepictines and pictamine, and bis(quinolizidine) alkaloids.
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7
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Rettenmeier E, Schuster AM, Rudolph M, Rominger F, Gade CA, Hashmi ASK. Gold Catalysis: Highly Functionalized Cyclopentadienes Prepared by Intermolecular Cyclization of Ynamides and Propargylic Carboxylates. Angew Chem Int Ed Engl 2013; 52:5880-4. [DOI: 10.1002/anie.201301382] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Indexed: 11/05/2022]
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Rettenmeier E, Schuster AM, Rudolph M, Rominger F, Gade CA, Hashmi ASK. Gold-Katalyse: hochfunktionalisierte Cyclopentadienderivate durch intermolekulare Cyclisierung von Inamiden und Propargylcarboxylaten. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301382] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Subba Reddy B, Narasimhulu G, Subba Lakshumma P, Vikram Reddy Y, Yadav J. Phosphomolybdic acid: a highly efficient solid acid catalyst for the synthesis of trans-4,5-disubstituted cyclopentenones. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.01.115] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Reddy BVS, Reddy YV, Lakshumma PS, Narasimhulu G, Yadav JS, Sridhar B, Reddy PP, Kunwar AC. In(OTf)3-catalyzed tandem aza-Piancatelli rearrangement/Michael reaction for the synthesis of 3,4-dihydro-2H-benzo[b][1,4]thiazine and oxazine derivatives. RSC Adv 2012. [DOI: 10.1039/c2ra21591h] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Saha N, Biswas T, Chattopadhyay SK. Enantiodivergent Synthetic Entry to the Quinolizidine Alkaloid Lasubine II. Org Lett 2011; 13:5128-31. [PMID: 21895020 DOI: 10.1021/ol2019967] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Nemai Saha
- Department of Chemistry, University of Kalyani, Kalyani-741235, West Bengal, India
| | - Tanmoy Biswas
- Department of Chemistry, University of Kalyani, Kalyani-741235, West Bengal, India
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Veits GK, Wenz DR, Read de Alaniz J. Versatile Method for the Synthesis of 4-Aminocyclopentenones: Dysprosium(III) Triflate Catalyzed Aza-Piancatelli Rearrangement. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201005131] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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13
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Veits GK, Wenz DR, Read de Alaniz J. Versatile Method for the Synthesis of 4-Aminocyclopentenones: Dysprosium(III) Triflate Catalyzed Aza-Piancatelli Rearrangement. Angew Chem Int Ed Engl 2010; 49:9484-7. [DOI: 10.1002/anie.201005131] [Citation(s) in RCA: 133] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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14
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Cheng G, Wang X, Su D, Liu H, Liu F, Hu Y. Preparation of Enantiopure Substituted Piperidines Containing 2-Alkene or 2-Alkyne Chains: Application to Total Syntheses of Natural Quinolizidine-Alkaloids. J Org Chem 2010; 75:1911-6. [DOI: 10.1021/jo902615u] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guolin Cheng
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
| | - Xinyan Wang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
| | - Deyong Su
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
| | - Hui Liu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
| | - Fei Liu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
| | - Yuefei Hu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
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Dalton DM, Oberg KM, Yu RT, Lee EE, Perreault S, Oinen ME, Pease ML, Malik G, Rovis T. Enantioselective rhodium-catalyzed [2 + 2 + 2] cycloadditions of terminal alkynes and alkenyl isocyanates: mechanistic insights lead to a unified model that rationalizes product selectivity. J Am Chem Soc 2009; 131:15717-28. [PMID: 19817441 PMCID: PMC2796191 DOI: 10.1021/ja905065j] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This manuscript describes the development and scope of the asymmetric rhodium-catalyzed [2 + 2 + 2] cycloaddition of terminal alkynes and alkenyl isocyanates leading to the formation of indolizidine and quinolizidine scaffolds. The use of phosphoramidite ligands proved crucial for avoiding competitive terminal alkyne dimerization. Both aliphatic and aromatic terminal alkynes participate well, with product selectivity a function of both the steric and electronic character of the alkyne. Manipulation of the phosphoramidite ligand leads to tuning of enantio- and product selectivity, with a complete turnover in product selectivity seen with aliphatic alkynes when moving from Taddol-based to biphenol-based phosphoramidites. Terminal and 1,1-disubstituted olefins are tolerated with nearly equal efficacy. Examination of a series of competition experiments in combination with analysis of reaction outcome shed considerable light on the operative catalytic cycle. Through a detailed study of a series of X-ray structures of rhodium(cod)chloride/phosphoramidite complexes, we have formulated a mechanistic hypothesis that rationalizes the observed product selectivity.
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Affiliation(s)
- Derek M. Dalton
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523
| | - Kevin M. Oberg
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523
| | - Robert T. Yu
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523
| | - Ernest E. Lee
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523
| | - Stéphane Perreault
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523
| | - Mark Emil Oinen
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523
| | - Melissa L. Pease
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523
| | - Guillaume Malik
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523
| | - Tomislav Rovis
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523
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Verkade JMM, van der Pijl F, Willems MMJHP, Quaedflieg PJLM, van Delft FL, Rutjes FPJT. An Enantioselective Organocatalytic Approach to Both Enantiomers of Lasubine II. J Org Chem 2009; 74:3207-10. [DOI: 10.1021/jo900141f] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jorge M. M. Verkade
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, NL-6525 AJ Nijmegen, The Netherlands, and DSM Pharmaceutical Products−Innovative Synthesis and Catalysis, P.O. Box 18, NL-6160 MD Geleen, The Netherlands
| | - Ferdi van der Pijl
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, NL-6525 AJ Nijmegen, The Netherlands, and DSM Pharmaceutical Products−Innovative Synthesis and Catalysis, P.O. Box 18, NL-6160 MD Geleen, The Netherlands
| | - Marian M. J. H. P. Willems
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, NL-6525 AJ Nijmegen, The Netherlands, and DSM Pharmaceutical Products−Innovative Synthesis and Catalysis, P.O. Box 18, NL-6160 MD Geleen, The Netherlands
| | - Peter J. L. M. Quaedflieg
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, NL-6525 AJ Nijmegen, The Netherlands, and DSM Pharmaceutical Products−Innovative Synthesis and Catalysis, P.O. Box 18, NL-6160 MD Geleen, The Netherlands
| | - Floris L. van Delft
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, NL-6525 AJ Nijmegen, The Netherlands, and DSM Pharmaceutical Products−Innovative Synthesis and Catalysis, P.O. Box 18, NL-6160 MD Geleen, The Netherlands
| | - Floris P. J. T. Rutjes
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, NL-6525 AJ Nijmegen, The Netherlands, and DSM Pharmaceutical Products−Innovative Synthesis and Catalysis, P.O. Box 18, NL-6160 MD Geleen, The Netherlands
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18
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Rhodium-catalyzed intramolecular conjugate addition of vinylstannanes to dihydro-4-pyridones: a simple method for stereoselective construction of 1-azabicyclic alkaloids. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.02.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Mancheño OG, Gómez Arrayás R, Adrio J, Carretero JC. Catalytic Enantioselective Approach to the Stereodivergent Synthesis of (+)-Lasubines I and II. J Org Chem 2007; 72:10294-7. [PMID: 18027970 DOI: 10.1021/jo702076j] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Olga García Mancheño
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Ramón Gómez Arrayás
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Javier Adrio
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Juan C. Carretero
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
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21
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Remuson R. A convenient allylsilane-N-acyliminium route toward indolizidine and quinolizidine alkaloids. Beilstein J Org Chem 2007; 3:32. [PMID: 17910752 PMCID: PMC2148044 DOI: 10.1186/1860-5397-3-32] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2007] [Accepted: 10/02/2007] [Indexed: 11/28/2022] Open
Abstract
This review relates all the results that we obtained in the field of the total synthesis of indolizidine and quinolizidine alkaloids using a strategy of the addition of an allylsilane on an N-acyliminium ion. In this paper, we describe the synthesis of racemic indolizidine 167B and chiral indolizidines: (-)-indolizidines 167B, 195B, 223AB, (+)-monomorine, (-)-(3R,5S,8aS)-3-butyl-5-propylindolizidine and (-)-dendroprimine. Next, we relate the synthesis that we have developed in the quinolizidines field: (±)-myrtine and epimyrtine, (±)-lasubines I and II and chiral quinolizidines: (+)-myrtine, (-)-epimyrtine, (-)-lasubines I and II and (+)-subcosine II.
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Affiliation(s)
- Roland Remuson
- UMR 6504, CNRS Université Blaise Pascal (Clermont-Fd), 63177 Aubière Cédex, France.
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Abstract
Ring-rearrangement metathesis (RRM) refers to the combination of several metathesis transformations into a domino process, in which an endocyclic double bond of a cycloolefin reacts with an exocyclic alkene. RRM has proven to be a powerful method for the rapid construction of complex structures. The extension of the basic ring-opening-ring-closing metathesis process by further metathesis steps as well as an examination of the driving forces, limits, scope, recent advantages, and future perspectives of these domino sequences is presented with various examples, thus reflecting the high efficiency and utility of RRM in organic synthesis.
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Affiliation(s)
- Nicole Holub
- Institute of Chemistry, Technische Universität Berlin, D-10623 Berlin, Germany
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23
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Nadany AE, Mckendrick JE. Structure dependent rearrangement of the cyclopropylmethyl cation—isolation of a bicyclo[3.2.0]heptene. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.04.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Calvet G, Blanchard N, Kouklovsky C. Domino Metathesis of 3,6-Dihydro-1,2-oxazine: Access to Isoxazolo[2,3-a]pyridin-7-ones. Org Lett 2007; 9:1485-8. [PMID: 17352486 DOI: 10.1021/ol0702066] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] Strained bicyclic 3,6-dihydro-1,2-oxazine is a reactive substrate in domino metathesis with an external alkene. This general transformation leads to isoxazolo[2,3-a]pyridin-7-one, a versatile scaffold combining chemical functions that could be selectively oxidized or reduced. The synthetic relevance of these domino metathesis products is demonstrated by a straightforward synthesis of a quinolizinone.
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Affiliation(s)
- Géraldine Calvet
- Laboratoire de Procédés et Substances Naturelles, Institut de Chimie Moléculaire et des Matériaux d'ORSAY, ICMMO - UMR 8182 - Bâtiment 410 Université Paris-Sud XI, 15 rue Georges Clémenceau, 91405 Orsay Cedex, France
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Abstract
This review covers the isolation, structure determination, synthesis, chemical transformations and biological activity of indolizidine and quinolizidine alkaloids. Included in the review are the hydroxylated indolizidines lentiginosine, swainsonine, castanospermine and their analogues; alkaloids from animal sources, including ants, amphibians and beetles; indolizidine alkaloids from the genera Polygonatum, Prosopis and Elaeocarpus; indolizidine and phenanthroindolizidine alkaloids; alkylquinolizidine alkaloids, including myrtine, epimyrtine, plumerinine and Lycopodium metabolites; Lythraceae and Nuphar alkaloids; lupine alkaloids; and alkaloids from marine sources. 150 references are cited.
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Affiliation(s)
- Joseph P Michael
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Wits 2050, South Africa.
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Catalytic enantioselective total synthesis of (+)-dumetorine by ring-rearrangement metathesis. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.08.114] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Liu S, Fan Y, Peng X, Wang W, Hua W, Akber H, Liao L. A concise and enantioselective approach to the total synthesis of (−)-lasubine I. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.08.137] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Herndon JW. The chemistry of the carbon–transition metal double and triple bond: Annual survey covering the year 2004. Coord Chem Rev 2006. [DOI: 10.1016/j.ccr.2005.10.020] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Six-membered ring systems: pyridines and benzo derivatives. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/s0959-6380(05)80334-4] [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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