101
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Studies directed toward the synthesis of rhizopodin: stereoselective synthesis of the C1–C15 fragment. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.09.144] [Citation(s) in RCA: 24] [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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102
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Hamze A, Le Menez P, Provot O, Morvan E, Brion JD, Alami M. Regioselective hydrostannation of highly hindered arylalkynes under ortho-directing effects. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.09.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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103
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Vargo TR, Hale JS, Nelson SG. Catalytic Asymmetric Aldol Equivalents in the Enantioselective Synthesis of the Apoptolidin C Aglycone. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201004925] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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104
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Vargo TR, Hale JS, Nelson SG. Catalytic Asymmetric Aldol Equivalents in the Enantioselective Synthesis of the Apoptolidin C Aglycone. Angew Chem Int Ed Engl 2010; 49:8678-81. [DOI: 10.1002/anie.201004925] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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105
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Cai MZ, Huang JD, Zhang RL. Stereoselective synthesis of (E)-α-aryltellurenylvinylstannanes and their application in the synthesis of stereodefined trisubstituted alkenes. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.20040220819] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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106
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Zhao ZQ, Sun B, Peng LZ, Li Y, Li YL. Novel access to organostannane compounds under ultrasound irradiation. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.20040221133] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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107
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Woerly EM, Cherney AH, Davis EK, Burke MD. Stereoretentive Suzuki-Miyaura coupling of haloallenes enables fully stereocontrolled access to (-)-peridinin. J Am Chem Soc 2010; 132:6941-3. [PMID: 20441218 DOI: 10.1021/ja102721p] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Stimulated by the substantial challenge of synthesizing the complex and sensitive stereogenic allene-containing core of (-)-peridinin, the first stereocontrolled coupling of haloallenes with boronic acids has been achieved. This new method and the principles that emerged during its development stand to enable the more efficient and flexible preparation of a wide range of natural products, pharmaceuticals, and intermediates that possess a stereogenic allene motif. This new reaction was harnessed to achieve the first completely stereocontrolled total synthesis of (-)-peridinin. This synthesis was accomplished using only one reaction iteratively to assemble four fully functionalized building blocks with complete stereoretention at each initial halide or boron-bearing carbon. This synthesis elevates the capacity of the iterative cross-coupling strategy to an unprecedented benchmark. Moreover, the efficient and highly modular nature of this synthesis promises to enable systematic dissection of the heretofore enigmatic structure/function relationships that underlie the protein-like antilipoperoxidant activities of this remarkable small molecule natural product.
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Affiliation(s)
- Eric M Woerly
- Howard Hughes Medical Institute, Roger Adams Laboratory, Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
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108
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Zyder M, Szymańska-Buzar T. Hydrostannation of norbornadiene by nBu3SnH and Ph3SnH with molybdenum catalysts. J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2010.03.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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109
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110
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Li P, Li J, Arikan F, Ahlbrecht W, Dieckmann M, Menche D. Stereoselective Total Synthesis of Etnangien and Etnangien Methyl Ester. J Org Chem 2010; 75:2429-44. [DOI: 10.1021/jo100201f] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pengfei Li
- Institut für Organische Chemie, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Jun Li
- Helmholtz-Zentrum für Infektionsforschung, Medizinische Chemie, Inhoffenstrasse 7, D-38124 Braunschweig, Germany
| | - Fatih Arikan
- Helmholtz-Zentrum für Infektionsforschung, Medizinische Chemie, Inhoffenstrasse 7, D-38124 Braunschweig, Germany
| | - Wiebke Ahlbrecht
- Institut für Organische Chemie, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Michael Dieckmann
- Institut für Organische Chemie, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Dirk Menche
- Institut für Organische Chemie, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
- Helmholtz-Zentrum für Infektionsforschung, Medizinische Chemie, Inhoffenstrasse 7, D-38124 Braunschweig, Germany
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111
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Candy M, Audran G, Bienaymé H, Bressy C, Pons JM. Total Synthesis of (+)-Crocacin C Using Hidden Symmetry. J Org Chem 2010; 75:1354-9. [DOI: 10.1021/jo902582w] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mathieu Candy
- Aix-Marseille Université, Institut des Sciences Moléculaires de Marseille, iSm2 CNRS UMR 6263-équipe STeRéO, Campus Saint-Jérôme 13397 Marseille cedex 20, France
| | - Gérard Audran
- Aix-Marseille Université, Institut des Sciences Moléculaires de Marseille, iSm2 CNRS UMR 6263-équipe STeRéO, Campus Saint-Jérôme 13397 Marseille cedex 20, France
| | - Hugues Bienaymé
- Aix-Marseille Université, Institut des Sciences Moléculaires de Marseille, iSm2 CNRS UMR 6263-équipe STeRéO, Campus Saint-Jérôme 13397 Marseille cedex 20, France
| | - Cyril Bressy
- Aix-Marseille Université, Institut des Sciences Moléculaires de Marseille, iSm2 CNRS UMR 6263-équipe STeRéO, Campus Saint-Jérôme 13397 Marseille cedex 20, France
| | - Jean-Marc Pons
- Aix-Marseille Université, Institut des Sciences Moléculaires de Marseille, iSm2 CNRS UMR 6263-équipe STeRéO, Campus Saint-Jérôme 13397 Marseille cedex 20, France
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112
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Affiliation(s)
- Haruhiko Fuwa
- Laboratory of Biostructural Chemistry, Graduate School of Life Sciences, Tohoku University, 1-1 Tsutsumidori-amamiya, Aoba-ku, Sendai 981-8555, Japan
| | - Makoto Sasaki
- Laboratory of Biostructural Chemistry, Graduate School of Life Sciences, Tohoku University, 1-1 Tsutsumidori-amamiya, Aoba-ku, Sendai 981-8555, Japan
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113
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Kong K, Romo D, Lee C. Enantioselective total synthesis of the marine toxin (-)-gymnodimine employing a Barbier-type macrocyclization. Angew Chem Int Ed Engl 2009; 48:7402-5. [PMID: 19728353 DOI: 10.1002/anie.200903432] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ke Kong
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, TX 77842, USA
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114
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Takao KI, Hayakawa N, Yamada R, Yamaguchi T, Saegusa H, Uchida M, Samejima S, Tadano KI. Total syntheses of (+)- and (-)-pestalotiopsin A. J Org Chem 2009; 74:6452-61. [PMID: 19658390 DOI: 10.1021/jo9012546] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An enantioselective total synthesis of both enantiomers of caryophyllene-type sesquiterpenoid pestalotiopsin A has been achieved, thereby establishing the absolute stereochemistry of natural (+)-pestalotiopsin A. Highlights of the synthesis include a [2 + 2] cycloaddition of N-propioloyl Oppolzer's camphorsultam and ketene dialkyl acetal and subsequent highly stereoselective 1,4-hydride addition/protonation, an aldol reaction of functionalized bicyclic lactone with aldehyde, an efficient intramolecular Nozaki-Hiyama-Kishi (NHK) reaction for the construction of the highly strained (E)-cyclononene ring, and a palladium-catalyzed reduction of allylic mesylate with retention of the E configuration.
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Affiliation(s)
- Ken-ichi Takao
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
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115
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116
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Mahoney SJ, Dumas AM, Fillion E. Asymmetric Addition of Alkenylstannanes to Alkylidene Meldrum’s Acids. Org Lett 2009; 11:5346-9. [DOI: 10.1021/ol902216y] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Stuart J. Mahoney
- Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Aaron M. Dumas
- Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Eric Fillion
- Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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117
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Zlatopolskiy BD, Morgenroth A, Kunkel FHG, Urusova EA, Dinger C, Kull T, Lepping C, Reske SN. Synthesis and Biologic Study of IV-14, a New Ribonucleoside Radiotracer for Tumor Visualization. J Nucl Med 2009; 50:1895-903. [DOI: 10.2967/jnumed.109.065623] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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118
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Kong K, Romo D, Lee C. Enantioselective Total Synthesis of the Marine Toxin (−)-Gymnodimine Employing a Barbier-Type Macrocyclization. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200903432] [Citation(s) in RCA: 10] [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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119
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Pinkerton DM, Banwell MG, Willis AC. Chemoenzymatic Access to Versatile Epoxyquinol Synthons. Org Lett 2009; 11:4290-3. [DOI: 10.1021/ol9016657] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- David M. Pinkerton
- Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra, ACT 0200, Australia
| | - Martin G. Banwell
- Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra, ACT 0200, Australia
| | - Anthony C. Willis
- Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra, ACT 0200, Australia
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120
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121
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Sharma H, Arias-Ugarte R, Metta-Magana A, Pannell K. Dehydrogenative Dimerization of Di-tert-butyltin Dihydride Photochemically and Thermally Catalyzed by Iron and Molybdenum Complexes. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200902327] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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122
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Sharma H, Arias-Ugarte R, Metta-Magana A, Pannell K. Dehydrogenative Dimerization of Di-tert-butyltin Dihydride Photochemically and Thermally Catalyzed by Iron and Molybdenum Complexes. Angew Chem Int Ed Engl 2009; 48:6309-12. [DOI: 10.1002/anie.200902327] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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123
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Wesquet A, Kazmaier U. Improved Protocols for Molybdenum- und Tungsten-Catalyzed Hydrostannations. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900093] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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124
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Commeiras L, Thibonnet J, Parrain JL. Studies towards the Total Synthesis of (-)-Caulerpenynol, a Toxic Sesquiterpenoid of the Green SeaweedCaulerpa taxifolia. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900101] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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125
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Amans D, Bellosta V, Cossy J. Synthesis of two bioactive natural products: FR252921 and pseudotrienic acid B. Chemistry 2009; 15:3457-73. [PMID: 19219867 DOI: 10.1002/chem.200802649] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Concise and highly convergent syntheses of the immunosuppressive agent FR252921 and the related antimicrobial natural product pseudotrienic acid B were achieved from a common intermediate by using optically active titanium complexes to control the configuration of the stereogenic centers, a highly stereo- and regioselective cross-metathesis to generate the triene moieties, and a Stille cross-coupling to install the dienic units.
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Affiliation(s)
- Dominique Amans
- Laboratoire de Chimie Organique, ESPCI ParisTech, CNRS, 10 rue Vauquelin, 75231 Paris, France
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126
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Lin H, Kazmaier U. Molybdenum-Catalyzed α-Hydrostannations of Propargylamines as the Key Step in the Synthesis of N-Heterocycles. European J Org Chem 2009. [DOI: 10.1002/ejoc.200801157] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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127
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Commeiras L, Thibonnet J, Parrain JL. First total synthesis of (−)-caulerpenynol. Org Biomol Chem 2009; 7:425-7. [DOI: 10.1039/b818243d] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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128
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Hamze A, Veau D, Provot O, Brion JD, Alami M. Palladium-Catalyzed Markovnikov Terminal Arylalkynes Hydrostannation: Application to the Synthesis of 1,1-Diarylethylenes. J Org Chem 2008; 74:1337-40. [DOI: 10.1021/jo802460z] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Abdallah Hamze
- Laboratoire de Chimie Thérapeutique, Faculté de Pharmacie, Universite Paris-Sud, CNRS, BioCIS, UMR 8076, rue J. B. Clément, Châtenay-Malabry, F-92296, France
| | - Damien Veau
- Laboratoire de Chimie Thérapeutique, Faculté de Pharmacie, Universite Paris-Sud, CNRS, BioCIS, UMR 8076, rue J. B. Clément, Châtenay-Malabry, F-92296, France
| | - Olivier Provot
- Laboratoire de Chimie Thérapeutique, Faculté de Pharmacie, Universite Paris-Sud, CNRS, BioCIS, UMR 8076, rue J. B. Clément, Châtenay-Malabry, F-92296, France
| | - Jean-Daniel Brion
- Laboratoire de Chimie Thérapeutique, Faculté de Pharmacie, Universite Paris-Sud, CNRS, BioCIS, UMR 8076, rue J. B. Clément, Châtenay-Malabry, F-92296, France
| | - Mouâd Alami
- Laboratoire de Chimie Thérapeutique, Faculté de Pharmacie, Universite Paris-Sud, CNRS, BioCIS, UMR 8076, rue J. B. Clément, Châtenay-Malabry, F-92296, France
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129
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Andrews IP, Kwon O. Highly efficient palladium-catalyzed hydrostannation of ethyl ethynyl ether. Tetrahedron Lett 2008; 49:7097-7099. [PMID: 20011027 DOI: 10.1016/j.tetlet.2008.09.147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The palladium-catalyzed hydrostannation of acetylenes is widely exploited in organic synthesis as a means of forming vinyl stannanes for use in palladium-catalyzed cross-coupling reactions. Application of this methodology to ethyl ethynyl ether results in an enol ether that is challenging to isolate from the crude reaction mixture because of incompatibility with typical silica gel chromatography. Reported here is a highly efficient procedure for the palladium-catalyzed hydrostannation of ethyl ethynyl ether using 0.1% palladium(0) catalyst and 1.0 equiv of tributyltin hydride. The product obtained is a mixture of regioisomers that can be carried forward with exclusive reaction of the beta-isomer. This method is highly reproducible; relative to previously reported procedures, it is more economical and involves a more facile purification procedure.
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Affiliation(s)
- Ian P Andrews
- Department of Chemistry & Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, CA 90095-1569, USA
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130
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Pavlík J, Šnajdr I, Kuneš J, Špulák M, Pour M. A Short Entry to α-Substituted γ-Alkylidene Pentenolides. Synthesis and Preliminary Biological Evaluation of Novel Gelastatin Analogues. J Org Chem 2008; 74:703-9. [DOI: 10.1021/jo802082t] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jan Pavlík
- Centre for New Antivirals and Antineoplastics, Department of Inorganic and Organic Chemistry, Charles University, Faculty of Pharmacy, Heyrovského 1203, CZ-500 05 Hradec Králové, Czech Republic
| | - Ivan Šnajdr
- Centre for New Antivirals and Antineoplastics, Department of Inorganic and Organic Chemistry, Charles University, Faculty of Pharmacy, Heyrovského 1203, CZ-500 05 Hradec Králové, Czech Republic
| | - Jiří Kuneš
- Centre for New Antivirals and Antineoplastics, Department of Inorganic and Organic Chemistry, Charles University, Faculty of Pharmacy, Heyrovského 1203, CZ-500 05 Hradec Králové, Czech Republic
| | - Marcel Špulák
- Centre for New Antivirals and Antineoplastics, Department of Inorganic and Organic Chemistry, Charles University, Faculty of Pharmacy, Heyrovského 1203, CZ-500 05 Hradec Králové, Czech Republic
| | - Milan Pour
- Centre for New Antivirals and Antineoplastics, Department of Inorganic and Organic Chemistry, Charles University, Faculty of Pharmacy, Heyrovského 1203, CZ-500 05 Hradec Králové, Czech Republic
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131
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132
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Ghosh AK, Gong G. Total synthesis of potent antitumor agent (-)-lasonolide A: a cycloaddition-based strategy. Chem Asian J 2008; 3:1811-23. [PMID: 18712746 PMCID: PMC3518312 DOI: 10.1002/asia.200800164] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A detailed account of the enantioselective total synthesis of (-)-lasonolide A is described. Our initial synthetic route to the top tetrahydropyran ring involved Evans asymmetric alkylation as the key step. Initially, we relied on the diastereoselective alkylation of an alpha-alkoxyacetimide derivative containing an alpha' stereogenic center and investigated such an asymmetric alkylation reaction. Although alkylation proceeded in good yield, the lack of diastereoselectivity prompted us to explore alternative routes. Our subsequent successful synthetic strategies involved highly diastereoselective cycloaddition routes to both tetrahydropyran rings of lasonolide A. The top tetrahydropyran ring was constructed stereoselectively by an intramolecular 1,3-dipolar cycloaddition reaction. The overall process constructed a bicyclic isoxazoline, which was later unravelled to a functionalized tetrahydropyran ring as well as a quaternary stereocenter present in the molecule. The lower tetrahydropyran ring was assembled by a Jacobsen catalytic asymmetric hetero-Diels-Alder reaction as the key step. The synthesis also features a Lewis acid catalyzed epoxide opening to form a substituted ether stereoselectively.
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Affiliation(s)
- A. K. Ghosh
- Departments of Chemistry and Medicinal Chemistry Purdue University West Lafayette, IN 47907 (USA)
| | - G. Gong
- Departments of Chemistry and Medicinal Chemistry Purdue University West Lafayette, IN 47907 (USA)
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133
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Raju BR, Saikia AK. Asymmetric synthesis of naturally occurring spiroketals. Molecules 2008; 13:1942-2038. [PMID: 18794795 PMCID: PMC6245485 DOI: 10.3390/molecules13081942] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2008] [Revised: 08/22/2008] [Accepted: 08/22/2008] [Indexed: 12/03/2022] Open
Abstract
Spiroketals are widely found as substructures of many naturally occurring compounds from diverse sources including plants, animals as well as microbes. Naturally occurring spiroketals are biologically active and most of them are chiral molecules. This article aims at reviewing the asymmetric synthesis of biologically active spiroketals for last 10 years (1998-2007).
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Affiliation(s)
| | - Anil K. Saikia
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India E-mail:
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134
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MCM-41-supported bidentate phosphine palladium(0) complex as an efficient catalyst for the heterogeneous Stille reaction. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.05.120] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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135
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Nagamitsu T, Takano D, Seki M, Arima S, Ohtawa M, Shiomi K, Harigaya Y, Ōmura S. The total synthesis and biological evaluation of nafuredin-γ and its analogues. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.06.066] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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136
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Jena N, Kazmaier U. Synthesis of Stannylated Allyl- and Vinylphosphonates via Molybdenum-Catalyzed Hydrostannations. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800418] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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137
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Maddess ML, Tackett MN, Ley SV. Total synthesis studies on macrocyclic pipecolic acid natural products: FK506, the antascomicins and rapamycin. PROGRESS IN DRUG RESEARCH. FORTSCHRITTE DER ARZNEIMITTELFORSCHUNG. PROGRES DES RECHERCHES PHARMACEUTIQUES 2008; 66:13, 15-186. [PMID: 18416305 DOI: 10.1007/978-3-7643-8595-8_2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
This chapter derives its inspiration from the challenges presented to total synthesis chemists, by a particular group of macrocyclic pipecolic acid natural products. Although there is considerable emphasis on the completed syntheses of the main characters (FK506 (1), the antascomycins (4 and 5) and rapamycin (7)), the overall complexity of the molecular problem has stimulated a wealth of new knowledge, including the development of novel strategies and the invention of new synthetic methods. The ingenious and innovative approaches to these targets have enabled new generations of analogues, and provided material to further probe the biology of these fascinating molecules. With pharmaceutical application as an immunosuppressant, as well as potential use for the treatment of cancer and neurodegenerative diseases, this family of natural products continues to inspire new and interesting science while providing solutions to healthcare problems of the world.
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Affiliation(s)
- Matthew L Maddess
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
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138
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Yamamoto Y. Silver-Catalyzed Csp−H and Csp−Si Bond Transformations and Related Processes. Chem Rev 2008; 108:3199-222. [DOI: 10.1021/cr078359u] [Citation(s) in RCA: 196] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yoshihiko Yamamoto
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, Ookatyama, Meguro-ku, Tokyo 152-8552, Japan
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139
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Paterson I, Razzak M, Anderson EA. Total Synthesis of (−)-Saliniketals A and B. Org Lett 2008; 10:3295-8. [DOI: 10.1021/ol801148d] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ian Paterson
- University Chemical Laboratory, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Mina Razzak
- University Chemical Laboratory, Lensfield Road, Cambridge CB2 1EW, U.K
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140
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Cai M, Wang Y, Hao W. Palladium-Catalyzed Hydrostannylation of α-Heteroalkynes and Alkynyl Esters in Ionic Liquids. European J Org Chem 2008. [DOI: 10.1002/ejoc.200701204] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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141
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Takao KI, Hayakawa N, Yamada R, Yamaguchi T, Morita U, Kawasaki S, Tadano KI. Total synthesis of (-)-pestalotiopsin A. Angew Chem Int Ed Engl 2008; 47:3426-9. [PMID: 18366053 DOI: 10.1002/anie.200800253] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ken-ichi Takao
- Department of Applied Chemistry, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
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142
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Faraoni MB, Gerbino DC, Podestá JC. Palladium-catalyzed stereoselective hydrostannation of substituted propargyl alcohols with trineophyltin hydride. J Organomet Chem 2008. [DOI: 10.1016/j.jorganchem.2008.02.015] [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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143
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Takao KI, Hayakawa N, Yamada R, Yamaguchi T, Morita U, Kawasaki S, Tadano KI. Total Synthesis of (−)-Pestalotiopsin A. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200800253] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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144
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Esumi T, Zhao M, Kawakami T, Fukumoto M, Toyota M, Fukuyama Y. Synthetic studies toward neovibsanins A and B: construction of the neovibsanin core utilizing palladium(0)-catalyzed carbonylative cyclization with carbon monoxide. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.02.168] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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145
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Yadav J, Reddy KB, Sabitha G. Stereoconvergent synthesis of C1–C17 and C18–C25 fragments of bafilomycin A1. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.11.091] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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146
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Smith AB, Razler TM, Ciavarri JP, Hirose T, Ishikawa T, Meis RM. A Second-Generation Total Synthesis of (+)-Phorboxazole A. J Org Chem 2008; 73:1192-200. [DOI: 10.1021/jo7018152] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Amos B. Smith
- Department of Chemistry, The Penn Center for Molecular Discovery, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Thomas M. Razler
- Department of Chemistry, The Penn Center for Molecular Discovery, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Jeffrey P. Ciavarri
- Department of Chemistry, The Penn Center for Molecular Discovery, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Tomoyasu Hirose
- Department of Chemistry, The Penn Center for Molecular Discovery, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Tomoyasu Ishikawa
- Department of Chemistry, The Penn Center for Molecular Discovery, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Regina M. Meis
- Department of Chemistry, The Penn Center for Molecular Discovery, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104
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147
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Ohmura T, Oshima K, Suginome M. Palladium-catalysed cis- and trans-silaboration of terminal alkynes: complementary access to stereo-defined trisubstituted alkenes. Chem Commun (Camb) 2008:1416-8. [DOI: 10.1039/b800181b] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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148
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Thiot C, Schmutz M, Wagner A, Mioskowski C. A One-Pot Synthesis of (E)-Disubstituted Alkenes by a Bimetallic [Rh–Pd]-Catalyzed Hydrosilylation/Hiyama Cross-Coupling Sequence. Chemistry 2007; 13:8971-8. [PMID: 17680571 DOI: 10.1002/chem.200700811] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A bimetallic [Rh-Pd] catalyst was prepared by soaking into an iodide ionic gel an equimolar solution of [RhCl(PPh(3))(3)] and Pd(OAc)(2) in CH(2)Cl(2). Its catalytic activity was evaluated by rhodium-catalyzed hydrosilylation (H), palladium-catalyzed Hiyama coupling (C), and in the one-pot hydrosilylation/Hiyama coupling sequence (H/C). It was found that the homogeneous combination [RhCl(PPh(3))(3)]/NaI was a superior system compared to the polyionic mono- and bimetallic rhodium catalysts in the hydrosilylation of terminal alkynes. Interestingly, the most effective catalyst in terms of stereo- and chemoselectivities was observed to be the bimetallic ionic gel [Rh-Pd] in the one-pot process leading to (E)-alkenes with good yields. The remarkable stereocontrol is ascribed to a beneficial Pd-catalyzed isomerization from the mixture of stereoisomeric vinylsilanes obtained in the initial hydrosilylation step into the more stable (E)-adduct. The [Rh-Pd] heterogeneous catalyst also showed a higher chemoselectivity than the homogeneous catalytic combination, and no detrimental formation of Sonogashira side product was observed due to an ionic-gel-mediated kinetic modulation. To illustrate its scope and limitations, the described one-pot bimetallic catalytic sequence was extended to functionalized terminal alkynes and various iodide substrates. Conjugated systems, such as hydroxycinnamaldehyde, dienes, and trienes, were synthesized in good overall yields. To avoid deactivation of the Rh species, N-heterocyclic iodides had to be added sequentially after completion of hydrosilylation.
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Affiliation(s)
- Carine Thiot
- Laboratoire de Synthèse Bio-Organique, Université Louis Pasteur, Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch-Graffenstaden, France
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149
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Steven A, Overman LE. Total synthesis of complex cyclotryptamine alkaloids: stereocontrolled construction of quaternary carbon stereocenters. Angew Chem Int Ed Engl 2007; 46:5488-508. [PMID: 17591737 DOI: 10.1002/anie.200700612] [Citation(s) in RCA: 384] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Our ability to access the more complex members of the cyclotryptamine family of alkaloids, and to exploit their disparate biological activities, is limited by the synthetic challenge posed by their oligomeric, polyindoline structures. A recurring structural theme within these molecules is the presence of multiple quaternary stereocenters in close proximity to one another. Over the last decade, we have developed a set of transformations that allow rapid access to polyindolines, a number of which exploit the ability of catalytic levels of palladium to orchestrate carbon-carbon bond formation with impressive levels of regio- and stereocontrol. This review tells the story behind the development of this toolbox of synthetic methods, and their validation through the total synthesis of a number of structurally complex cyclotryptamine alkaloids. It also highlights an aspect of asymmetric catalysis that has received little attention, the ability of catalytic asymmetric reactions to selectively elaborate complex, polyfunctional molecules.
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Affiliation(s)
- Alan Steven
- AstraZeneca Global Process R&D, Avlon Works, Severn Road, Hallen, Bristol, BS10 7ZE, UK
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150
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Abstract
A convergent, stereocontrolled total synthesis of (+)-tedanolide (1), an architecturally complex marine antitumor macrolide, has been achieved in 31 steps (longest linear sequence). Highlights of the synthesis comprise a highly efficient dithiane union, followed by an Evans-Tishchenko "oxidation" to enable formation of the seco-ester in the presence of an oxidatively labile dithiane, a highly refined protecting group strategy, and a chemo- and stereoselective epoxidation at C(18,19).
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Affiliation(s)
- Amos B Smith
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA.
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