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Kesić J, Kovačević I, Popsavin M, Benedeković G, Rodić MV, Kojić V, Popsavin V. The first total synthesis and revision of absolute stereochemistry of natural cytotoxic lactone cleistanolate. Bioorg Chem 2022; 128:106073. [PMID: 35939856 DOI: 10.1016/j.bioorg.2022.106073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/18/2022] [Accepted: 07/31/2022] [Indexed: 11/29/2022]
Abstract
Development of a synthetic route applicable to d-ribose and d-xylose enabled the synthesis of cleistanolate putative structure, its five stereoisomers, and led to revision and confirmation of absolute stereochemistry of the natural product. Key steps of the synthesis included zinc-mediated THF ring-opening and stereoselective dihydroxylation under the Upjohn conditions. The first total synthesis of cleistanolate was completed in eight steps starting from d-xylose. The C-5 stereocenter of the natural product was assigned the correct (5S)-stereochemistry. Cytotoxicity of natural product was briefly investigated.
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Affiliation(s)
- Jelena Kesić
- University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
| | - Ivana Kovačević
- University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia.
| | - Mirjana Popsavin
- University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
| | - Goran Benedeković
- University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
| | - Marko V Rodić
- University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
| | - Vesna Kojić
- University of Novi Sad, Faculty of Medicine, Oncology Institute of Vojvodina, put Dr. Goldmana 4, 21204 Sremska Kamenica, Serbia
| | - Velimir Popsavin
- University of Novi Sad, Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia; Serbian Academy of Sciences and Arts, Kneza Mihaila 35, 11000 Belgrade, Serbia
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2
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Kovačević I, Kesić J, Popsavin M, Francuz J, Kojić V, Jakimov D, Rodić MV, Zelenović BS, Benedeković G, Popsavin V. Asymmetric synthesis and biological evaluation of (+)-cardiobutanolide, (−)-3-deoxycardiobutanolide and analogues as antiproliferative agents. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132408] [Citation(s) in RCA: 1] [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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3
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Kovačević I, Popsavin M, Rodić MV, Kojić V, Popsavin V. Asymmetric synthesis of the cytotoxic lactone (+)-cardiobutanolide and two novel analogues. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.01.059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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4
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Prada Gori DN, Permingeat Squizatto C, Cornier PG, Delpiccolo CML. Design of a Selective Ring-Closing Enyne Metathesis-Reduction for the Generation of Different Synthetic Scaffolds. J Org Chem 2018; 83:12798-12805. [PMID: 30247910 DOI: 10.1021/acs.joc.8b01511] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A tandem process of ring-closing enyne metathesis (RCEYM)-reduction using modern ruthenium catalysts and a hydrogen donor is described. This straightforward methodology is useful for C(sp3) generation under mild reaction conditions. Variables such as solvent, catalyst, hydride source, and temperature were adjusted toward the exclusive formation of different products.
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Affiliation(s)
- Denis N Prada Gori
- Departamento de Química Orgánica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario , Instituto de Química Rosario (CONICET-UNR) , Rosario 2000 , Argentina
| | - Caterina Permingeat Squizatto
- Departamento de Química Orgánica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario , Instituto de Química Rosario (CONICET-UNR) , Rosario 2000 , Argentina
| | - Patricia G Cornier
- Departamento de Química Orgánica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario , Instituto de Química Rosario (CONICET-UNR) , Rosario 2000 , Argentina
| | - Carina M L Delpiccolo
- Departamento de Química Orgánica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario , Instituto de Química Rosario (CONICET-UNR) , Rosario 2000 , Argentina
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5
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Rhodium Catalyzed Decarbonylation. TOP ORGANOMETAL CHEM 2017. [DOI: 10.1007/3418_2017_175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Schröder SP, Petracca R, Minnee H, Artola M, Aerts JMFG, Codée JDC, van der Marel GA, Overkleeft HS. A Divergent Synthesis ofl-arabino- andd-xylo-Configured Cyclophellitol Epoxides and Aziridines. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600983] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sybrin P. Schröder
- Department of Bio-organic Synthesis; Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Rita Petracca
- Department of Bio-organic Synthesis; Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Hugo Minnee
- Department of Bio-organic Synthesis; Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Marta Artola
- Department of Bio-organic Synthesis; Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Johannes M. F. G. Aerts
- Department of Medical Biochemistry; Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Jeroen D. C. Codée
- Department of Bio-organic Synthesis; Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Gijsbert A. van der Marel
- Department of Bio-organic Synthesis; Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Herman S. Overkleeft
- Department of Bio-organic Synthesis; Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 2333 CC Leiden The Netherlands
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7
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Bera S, Mondal D, Martin JT, Singh M. Potential effect of ultrasound on carbohydrates. Carbohydr Res 2015; 410:15-35. [DOI: 10.1016/j.carres.2015.02.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 02/20/2015] [Accepted: 02/21/2015] [Indexed: 10/23/2022]
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8
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Salamone S, Clement LL, Viuff AH, Andersen OJ, Jensen F, Jensen HH. Synthesis and evaluation of galacto-noeurostegine and its 2-deoxy analogue as glycosidase inhibitors. Org Biomol Chem 2015; 13:7979-92. [DOI: 10.1039/c5ob01062d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An epimer of the known glycosidase inhibitor noeurostegine, galacto-noeurostegine, was synthesised in 21 steps from levoglucosan and found to be a potent, competitive and highly selective galactosidase inhibitor of Aspergillus oryzae β-galactosidase.
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Affiliation(s)
| | | | | | - Ole Juul Andersen
- Department of Chemistry
- Aarhus University
- Aarhus C
- Denmark
- Center for Insoluble Protein Structures (inSPIN) and the Interdisciplinary Nanoscience Center (iNANO)
| | - Frank Jensen
- Department of Chemistry
- Aarhus University
- Aarhus C
- Denmark
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9
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Affiliation(s)
- Mingxing Xiao
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Lin Wei
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Liqi Li
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zhixiang Xie
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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10
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Gao Y, Liu J, Wang L, Xiao M, Du Y. Total Syntheses of Cochliomycin B and Zeaenol. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301613] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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11
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Moodie LWK, Larsen DS. A Ring-Closing Enyne Metathesis Approach to Functionalized Semicyclic Dienes: The Total Synthesis of (-)-Tetrangomycin. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301627] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Leppänen AS, Xu C, Parikka K, Eklund P, Sjöholm R, Brumer H, Tenkanen M, Willför S. Targeted allylation and propargylation of galactose-containing polysaccharides in water. Carbohydr Polym 2012; 100:46-54. [PMID: 24188837 DOI: 10.1016/j.carbpol.2012.11.053] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 10/26/2012] [Accepted: 11/21/2012] [Indexed: 11/17/2022]
Abstract
Galactose units of spruce galactoglucomannan (GGM), guar galactomannan (GM), and tamarind (galacto)xyloglucan (XG) were selectively allylated. Firstly aldehyde functionalities were formed at the C-6 position via enzymatic oxidation by galactose oxidase. The formed aldehydes were further derivatized by an indium mediated Barbier-Grignard type reaction, resulting in the formation of homoallylic alcohols. In addition to allylic halides, the same reaction procedure was also applicable for GGM, when using propargyl bromide as halide. All reaction steps were done in water, thus the polysaccharides were modified in a one-pot reaction. The formation of the allylated, or propargylated, product was identified by MALDI-TOF-MS. All polysaccharide products were isolated and further characterized by GC-MS or NMR spectroscopy. By this chemo-enzymatic process, we have demonstrated a novel method for derivatization of GGM and other galactose-containing polysaccharides. The derivatized polysaccharides are potential platforms for further functionalizations.
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Affiliation(s)
- Ann-Sofie Leppänen
- Process Chemistry Centre, Laboratory of Wood and Paper Chemistry, Åbo Akademi University, Porthansgatan 3, FI-20500 Turku, Finland.
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13
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Grisi F, Costabile C, Grimaldi A, Viscardi C, Saturnino C, Longo P. Synthesis of Unsaturated Macrocycles by Ru-Catalyzed Ring-Closing Metathesis: A Comparative Study. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200960] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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14
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Convenient strategy for the synthesis of highly functionalizable hydroxylated unsaturated azepanes. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.06.053] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Fustero S, Bello P, Miró J, Simón A, del Pozo C. 1,7-Octadiene-Assisted Tandem Multicomponent Cross-Enyne Metathesis (CEYM)-Diels-Alder Reactions: A Useful Alternative to Mori’s Conditions. Chemistry 2012; 18:10991-7. [PMID: 22851514 DOI: 10.1002/chem.201200835] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Santos Fustero
- Departamento de Química Orgánica, Universidad de Valencia, 46100-Burjassot, Valencia, Spain.
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16
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Monrad RN, Madsen R. Modern methods for shortening and extending the carbon chain in carbohydrates at the anomeric center. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.08.047] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Grotevendt AGD, Lummiss JAM, Mastronardi ML, Fogg DE. Ethylene-Promoted versus Ethylene-Free Enyne Metathesis. J Am Chem Soc 2011; 133:15918-21. [PMID: 21919450 DOI: 10.1021/ja207388v] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anne G. D. Grotevendt
- Department of Chemistry; Centre for Catalysis Research & Innovation, University of Ottawa, Ottawa, ON, Canada K1N 6N5
| | - Justin A. M. Lummiss
- Department of Chemistry; Centre for Catalysis Research & Innovation, University of Ottawa, Ottawa, ON, Canada K1N 6N5
| | - Melanie L. Mastronardi
- Department of Chemistry; Centre for Catalysis Research & Innovation, University of Ottawa, Ottawa, ON, Canada K1N 6N5
| | - Deryn E. Fogg
- Department of Chemistry; Centre for Catalysis Research & Innovation, University of Ottawa, Ottawa, ON, Canada K1N 6N5
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18
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López JC, Plumet J. Metathesis Reactions of Carbohydrates: Recent Highlights in Alkyne Metathesis. European J Org Chem 2011. [DOI: 10.1002/ejoc.201001518] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- J. Cristóbal López
- Instituto de Química Orgánica General, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - Joaquín Plumet
- Universidad Complutense, Facultad de Química, Departamento de Química Orgánica, Ciudad Universitaria s/n, 28040 Madrid, Spain, Fax: +34‐91‐394‐4103
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19
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Bercier A, Plantier-Royon R, Portella C. Domino reactions of 5-deoxy-5-iodo-d-xylo- and -l-arabinofuranose derivatives with organometallic reagents. A way towards polyfunctionalized building-blocks. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Synthesis of 3-vinyl-2,5-dihydrofuran ring system via enyne metathesis. Carbohydr Res 2010; 345:324-9. [DOI: 10.1016/j.carres.2009.09.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2009] [Revised: 09/09/2009] [Accepted: 09/22/2009] [Indexed: 11/23/2022]
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21
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Martel F, Estrine B, Plantier-Royon R, Hoffmann N, Portella C. Development of Agriculture Left-Overs: Fine Organic Chemicals from Wheat Hemicellulose-Derived Pentoses. Top Curr Chem (Cham) 2010; 294:79-115. [DOI: 10.1007/128_2010_54] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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22
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Rasmussen TS, Jensen HH. Synthesis and glycosidase inhibitory activity of noeurostegine-a new and potent inhibitor of beta-glucoside hydrolases. Org Biomol Chem 2009; 8:433-41. [PMID: 20066281 DOI: 10.1039/b918576c] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new, stable hemi-aminal nor-tropane christened noeurostegine was synthesised in 22 steps from levoglucosan and tested for inhibitory activity against glycoside hydrolases. Sweet almond and Thermotoga maritimabeta-glucosidases, coffee bean alpha-galactosidase, and Asp. oryzaebeta-galactosidase were inhibited in the low micromolar region but significant tightening of binding to K(i) 50 nM for almond beta-glucosidase was found to occur after pre-incubation. Yeast alpha-glucosidase and E. colibeta-galactosidase were not inhibited at 1 mM.
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Affiliation(s)
- Tina Secher Rasmussen
- Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000, Aarhus C, Denmark
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23
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Kotha S, Meshram M, Tiwari A. Advanced approach to polycyclics by a synergistic combination of enyne metathesis and Diels-Alder reaction. Chem Soc Rev 2009; 38:2065-92. [PMID: 19551182 DOI: 10.1039/b810094m] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enyne metathesis (EM) has widely been used to prepare various synthetic and natural products. Further, a sequential use of EM and Diels-Alder (DA) reactions generates highly functionalized and intricate polycarbocycles and heterocyclic frameworks. In this critical review we describe the application of a unique combination of EM and DA reactions to prepare various amino acid derivatives, natural products and heterocycles. Some of the heterocyclic targets include cyclic peroxides, siloxanes and various nitrogen (or oxygen) containing compounds. Use of ethylene and cyclooctadiene (COD) for improving the yield of EM products are also discussed (69 references).
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Affiliation(s)
- Sambasivarao Kotha
- Department of Chemistry, Indian Institute of Technology-Bombay, Powai, Mumbai 400 076, India.
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24
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Aljarilla A, Murcia MC, Csákÿ AG, Plumet J. A Convenient Approach to Polycyclic Derivatives with acis-Fused 2,6-Dioxabicyclo[4.3.0]nonane System by the Sequence Ring-Opening/Intramolecular Ring-Closing Enyne Metathesis/Diels-Alder Reaction. European J Org Chem 2009. [DOI: 10.1002/ejoc.200800936] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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25
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C. Majumdar K, Muhuri S, Ul Islam R, Chattopadhyay B. Synthesis of Five- and Six-Membered Heterocyclic Compounds by the Application of the Metathesis Reactions. HETEROCYCLES 2009. [DOI: 10.3987/rev-08-646] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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26
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Bhattacharyya S, Sangita, Zaleski JM. Unique Metal-Diyne, -Enyne, and -Enediyne Complexes: Part of the Remarkably Diverse World of Metal-Alkyne Chemistry. PROGRESS IN INORGANIC CHEMISTRY 2008. [DOI: 10.1002/9780470144428.ch6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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27
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Li J, Todaro LJ, Mootoo DR. Synthesis of the AB subunit of angelmicin B through a tandem alkoxy radical fragmentation-etherification sequence. Org Lett 2008; 10:1337-40. [PMID: 18324819 PMCID: PMC2692225 DOI: 10.1021/ol703036y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis of the tricyclic enone 2, corresponding to the AB subunit of the novel tyrosine kinase inhibitor angelmicin B, is described. The strategy centers on an intramolecular Diels-Alder (IMDA) reaction on triene 4 to provide the complex decalin 3, which is elaborated to 2. Other key steps are the formation of the THF ring in 2 through a tandem alkoxy radical fragmentation-etherification on the lactol derived from 3, and the synthesis of 4 via a ring-closing ene-yne metathesis (RCEYM).
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Affiliation(s)
- Jialiang Li
- Department of Chemistry, Hunter College, 695 Park Avenue, New York, New York 10065 and The Graduate Center, CUNY, 365 5th Avenue, New York, New York 10016
| | - Louis J. Todaro
- Department of Chemistry, Hunter College, 695 Park Avenue, New York, New York 10065 and The Graduate Center, CUNY, 365 5th Avenue, New York, New York 10016
| | - David R. Mootoo
- Department of Chemistry, Hunter College, 695 Park Avenue, New York, New York 10065 and The Graduate Center, CUNY, 365 5th Avenue, New York, New York 10016
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An Improved Synthesis Route to Functionalized 2-Alkyn-1-ylboronates: Useful Intermediates for the Preparation of α-Allenic Alcohols. MONATSHEFTE FUR CHEMIE 2008. [DOI: 10.1007/s00706-007-0769-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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29
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Krohn K, Shuklov IA. Synthesis of the Aliphatic Subunit of the Macrolide LL‐Z 1640‐2 via Vasella Ring Opening of a 6‐Iodo‐4‐deoxy‐D‐mannose. J Carbohydr Chem 2007. [DOI: 10.1080/07328300701737862] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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30
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Abstract
We have developed concise routes to a number of useful chiral 5-carbon synthetic building blocks using readily available O-1-methyl-2-deoxyribose as starting material. Novel transformations include the use of indium triflate to catalyze the oxidation of a methyl furanoside to the corresponding lactone with MCPBA and the Vasella-type fragmentation of a 5-iodo furanoside using chromium(II) chloride when zinc proved ineffective. In addition, 3,4-disubstituted piperidine derivatives were prepared without hydroxyl group protection via a simple reductive amination reaction.
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Affiliation(s)
- Dengjin Wang
- Process Research and Development, Bristol-Myers Squibb Company, Princeton, NJ 08543, USA.
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31
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Bercier A, Plantier-Royon R, Portella C. Convenient conversion of wheat hemicelluloses pentoses (D-xylose and L-arabinose) into a common intermediate. Carbohydr Res 2007; 342:2450-5. [PMID: 17692299 DOI: 10.1016/j.carres.2007.07.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2007] [Revised: 07/06/2007] [Accepted: 07/12/2007] [Indexed: 11/28/2022]
Abstract
The transformation of D-xylose and L-arabinose, the two major components of wheat straw and bran, into a unique multifunctional, optically pure, five-carbon synthon has been achieved. The synthetic sequence requires three steps: suitable protection of the hydroxyl groups of the pentoses, introduction of an iodide at the C-5 position and zinc-mediated opening of the furanose ring leading to the formation of a common substituted pent-4-enal.
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Affiliation(s)
- Ariane Bercier
- Laboratoire Réactions Sélectives et Applications, Associé au CNRS (UMR 6519), Université de Reims, Faculté des Sciences, BP 1039, F-51687 Reims France
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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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Henon E, Bercier A, Plantier-Royon R, Harakat D, Portella C. Compared Behavior of 5-Deoxy-5-iodo-d-xylo- and l-Arabinofuranosides in the Reductive Elimination Reaction: A Strong Dependence on Structural Parameters and on the Presence of Zn2+. A Combined Experimental and Theoretical Investigation. J Org Chem 2007; 72:2271-8. [PMID: 17346081 DOI: 10.1021/jo0614590] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In the framework of a project devoted to the chemical transformation of monosaccharides from hemicelluloses into higher added value materials, the zinc-induced reductive elimination from 5-deoxy-5-iodo derivatives of D-xylose and L-arabinose was carried out. This study gave us the opportunity to observe surprising behaviors. In particular, the reaction strongly depends on structural parameters (protecting group pattern, configuration at C-4) and on the presence of Zn2+ ions. Collaterally with the experimental work, water solvent PCM HF-DFT (MPW1K/LANL2DZ) computations were performed to obtain insight into the mechanism for the reductive part of the reaction sequence. Without Zn2+, the zinc insertion reaction was found to proceed through a concerted but non-synchronous process involving a relatively large energy barrier (32 kcal mol-1) that directly leads to the presumed organozinc intermediate. In the presence of Zn2+, a three-step mechanism was identified in which the cation coordinates the anomeric and ring oxygen atoms and also the sugar iodine atom, causing an activating effect on the zinc insertion process by facilitating the homolytic rupture of the C-I bond. Complexes between zinc and Zn2+ bound carbohydrates were characterized with large stabilization energies, suggesting that Zn2+ might enhance the affinity of the organic compound with the zinc metal surface.
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Affiliation(s)
- Eric Henon
- Groupe de Spectrométrie Moléculaire et Atmosphérique (GSMA), UMR CNRS 6089, U.F.R Sciences, Université de Reims Champagne-Ardenne, Moulin de la housse, B.P. 1039, 51687 Reims Cedex 2, France.
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Madsen R. Synthetic Strategies for Converting Carbohydrates into Carbocycles by the Use of Olefin Metathesis. European J Org Chem 2007. [DOI: 10.1002/ejoc.200600614] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Robert Madsen
- Center for Sustainable and Green Chemistry, Department of Chemistry, Building 201, Technical University of Denmark, 2800 Lyngby, Denmark, Fax: +45‐4593‐3968
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García-Fandiño R, Castedo L, Granja JR, Cárdenas DJ. Feasibility of associative mechanism in enyne metathesis catalyzed by grubbs complexes. Dalton Trans 2007:2925-34. [PMID: 17607407 DOI: 10.1039/b702680c] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mechanism of enyne metathesis catalyzed by first and second generation Grubbs complexes has been computationally explored at the DFT level. The relative reactivity and the regioselectivity for the reaction of differently substituted alkenes and alkynes with model Ru complexes has been studied. The usually accepted dissociative mechanism for the alkene metathesis has been explored for alkynes, and compared with an associative pathway involving initial coordination of the alkyne to the 16-electron catalyst. Our results show that an associative mechanism would be the preferred pathway for the reaction of phosphine-based (first generation) Ru carbenes, at least for small phosphines such as PMe(3), whereas for the more reactive complexes containing a heterocyclic carbene as ligand (second generation catalysts), the dissociative process is far more favourable.
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Affiliation(s)
- Rebeca García-Fandiño
- Departamento de Química Orgánica e Unidade Asociada ó CSIC, Facultade de Química, Universidade de Santiago, 15706 Santiago de Compostela, Spain
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A resourceful new strategy in organic synthesis: Tandem and stepwise metathesis/non-metathesis catalytic processes. J Organomet Chem 2006. [DOI: 10.1016/j.jorganchem.2006.08.012] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Kreis M, Palmelund A, Bunch L, Madsen R. A General and Convenient Method for the Rhodium-Catalyzed Decarbonylation of Aldehydes. Adv Synth Catal 2006. [DOI: 10.1002/adsc.200600228] [Citation(s) in RCA: 126] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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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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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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40
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Schneider U, Sugiura M, Kobayashi S. Highly Selective Preparation of Allenic and Homopropargylic Hydrazides through Regiospecific Addition of Propargyltrichlorosilane and Allenyltrichlorosilane to Various Types ofN-Acylhydrazones. Adv Synth Catal 2006. [DOI: 10.1002/adsc.200505379] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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41
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Ortiz JC, Ozores L, Cagide-Fagín F, Alonso R. Annulation of β-aryl-α-nitro-α,β-enals and 2,2-dimethyl-1,3-dioxan-5-one: a one-step assembly of nitrocyclitols. Application to a short practical synthesis of (±)-7-deoxy-2-epi-pancratistatin tetraacetate. Chem Commun (Camb) 2006:4239-41. [PMID: 17031444 DOI: 10.1039/b606277f] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel, highly stereocontrolled formal [3 + 3] annulation of beta-aryl-alpha-nitro-alpha,beta-enals with the enamine derived from 2,2-dimethyl-1,3-dioxan-5-one and pyrrolidine afforded protected nitrocyclitols with five newly created stereocentres and constituted the key step in a short, gram-scale synthesis of a pancratistatin analogue.
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Affiliation(s)
- Juan Carlos Ortiz
- Departamento de Química Orgánica, Universidad de Santiago, 15782 Santiago de Compostela, Spain
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Schneider U, Sugiura M, Kobayashi S. Highly selective formation of propargyl- and allenyltrichlorosilanes and their regiospecific addition to various types of aldehydes: preparation of both allenic and homopropargylic alcohols. Tetrahedron 2006. [DOI: 10.1016/j.tet.2005.08.114] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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43
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Rate Enhancement by Ethylene in the Ru-Catalyzed Ring-Closing Metathesis of Enynes: Evidence for an “Ene-then-Yne” Pathway that Diverts through a Second Catalytic Cycle. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200502243] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Lloyd-Jones GC, Margue RG, de Vries JG. Rate Enhancement by Ethylene in the Ru-Catalyzed Ring-Closing Metathesis of Enynes: Evidence for an “Ene-then-Yne” Pathway that Diverts through a Second Catalytic Cycle. Angew Chem Int Ed Engl 2005; 44:7442-7. [PMID: 16240303 DOI: 10.1002/anie.200502243] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Guy C Lloyd-Jones
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK.
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Abstract
[reaction: see text] A new synthesis of (+)-cyclophellitol, a potent beta-glucosidase inhibitor, has been completed in nine steps from D-xylose. The key transformations involve a zinc-mediated fragmentation of benzyl-protected methyl 5-deoxy-5-iodo-xylofuranoside followed by a highly diastereoselective indium-mediated coupling with ethyl 4-bromocrotonate. Subsequent ring-closing olefin metathesis, ester reduction, olefin epoxidation, and deprotection then afford the natural product. This constitutes the shortest synthesis of (+)-cyclophellitol reported to date.
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Affiliation(s)
- Flemming Gundorph Hansen
- Center for Sustainable and Green Chemistry, Building 201, Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark
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Lippstreu JJ, Straub BF. Mechanism of Enyne Metathesis Catalyzed by Grubbs Ruthenium−Carbene Complexes: A DFT Study. J Am Chem Soc 2005; 127:7444-57. [PMID: 15898794 DOI: 10.1021/ja042622g] [Citation(s) in RCA: 132] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The complete catalytic cycle of the reaction of alkenes and alkynes to dienes by Grubbs ruthenium carbene complexes has been modeled at the B3LYP/LACV3P**+//B3LYP/LACVP level of theory. The core structures of the substrates and the catalyst were used as models, namely, ethene, ethyne, hept-1-en-6-yne, (Me(3)P)(2)Cl(2)Ru=CH(2), and [C(2)H(4)(NMe)(2)C](Me(3)P)Cl(2)Ru=CH(2). Insight into the electronically most preferred mechanistic pathways was gained for both intermolecular as well as for intramolecular enyne metathesis. Alkene metathesis is predicted to proceed fast and reversible, while the insertion of the alkyne substrate is slower, irreversible, and kinetically regioselectivity determining. Ruthenacyclobut-2-ene structures do not exist as local minima in the catalytic cycle. Instead, vinylcarbene complexes are formed directly. The alkyne insertion step and the cycloreversion of 2-vinyl ruthenacyclobutanes feature comparable predicted overall barriers in intermolecular enyne metathesis. For intramolecular enyne metathesis, a noncyclic alkene fragment of the enyne substrate is first incorporated into the Grubbs catalyst by an alkene metathesis reaction. The subsequent insertion of the alkyne fragment then proceeds intramolecularly. Alkene association, cycloaddition, and cycloreversion to the diene product complex close the catalytic cycle. Rate enhancement by an ethene atmosphere (Mori's conditions) originates from a constantly higher overall alkene concentration that is necessary for the rate-limiting [2 + 2] cycloreversion step to the diene product complex.
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Affiliation(s)
- Jörg J Lippstreu
- Department Chemie und Biochemie der Ludwig-Maximilians-Universität München, Germany
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Abstract
A short synthetic strategy for preparation of the conduritols is described. The key step employs a zinc-mediated fragmentation of protected methyl 5-deoxy-5-iodo-d-pentofuranosides followed by an allylation of the intermediate aldehyde in the same pot. The allylation is performed with 3-bromopropenyl benzoate and occurs with good diastereoselectivity. An amino group can be introduced in the product by trapping the intermediate aldehyde as the imine prior to the allylation. The functionalised 1,7-octadienes, thus obtained, are converted into protected conduritols by ring-closing olefin metathesis.
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Affiliation(s)
- Lise Keinicke
- Center for Sustainable and Green Chemistry, Department of Chemistry, Building 201, Technical University of Denmark, DK-2800, Lyngby, Denmark
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Bera S. An Enantioselective Synthesis of 1-Azaspiro[5.5]undecane Ring System of Histrionicotoxin Alkaloids from D(+)-Glucose. HETEROCYCLES 2005. [DOI: 10.3987/com-05-10540] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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50
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Abstract
Catalytic asymmetric Nozaki-Hiyama propargylation with ligand 1c proceeds with good to excellent enantioselectivity. Tuning of ligand 1 dramatically changes the enantioselectivity, and we propose models A and B to explain the change and outcome of the enantioselectivity.
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Affiliation(s)
- Masahiro Inoue
- Department of Chemistry, School of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
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