1
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Nájera C, Foubelo F, Sansano JM, Yus M. Stereodivergent routes in organic synthesis: carbohydrates, amino acids, alkaloids and terpenes. Org Biomol Chem 2020; 18:1232-1278. [DOI: 10.1039/c9ob02419k] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The natural occurrence of enantiomers and diastereomers is often encountered.
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Affiliation(s)
- Carmen Nájera
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Alicante
- E-03080 Alicante
- Spain
| | - Francisco Foubelo
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Alicante
- E-03080 Alicante
- Spain
- Departamento de Química Orgánica
| | - José M. Sansano
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Alicante
- E-03080 Alicante
- Spain
- Departamento de Química Orgánica
| | - Miguel Yus
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Alicante
- E-03080 Alicante
- Spain
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2
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Athawale PR, Kumari N, Dandawate MR, Kashinath K, Srinivasa Reddy D. Synthesis of Chiral Tetrahydrofuran Building Blocks from Pantolactones: Application in the Synthesis of Empagliflozin and Amprenavir Analogs. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900718] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Paresh R. Athawale
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110 025 India
| | - Neeta Kumari
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune 411008 India
| | - Monica R. Dandawate
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune 411008 India
| | - K. Kashinath
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110 025 India
| | - D. Srinivasa Reddy
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110 025 India
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3
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Hattori H, Kaufmann E, Miyatake-Ondozabal H, Berg R, Gademann K. Total Synthesis of Tiacumicin A. Total Synthesis, Relay Synthesis, and Degradation Studies of Fidaxomicin (Tiacumicin B, Lipiarmycin A3). J Org Chem 2018; 83:7180-7205. [DOI: 10.1021/acs.joc.8b00101] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hiromu Hattori
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
| | - Elias Kaufmann
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
| | | | - Regina Berg
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Karl Gademann
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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4
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Forsberg LK, Anyika M, You Z, Emery S, McMullen M, Dobrowsky RT, Blagg BSJ. Development of noviomimetics that modulate molecular chaperones and manifest neuroprotective effects. Eur J Med Chem 2018; 143:1428-1435. [PMID: 29137866 PMCID: PMC5736410 DOI: 10.1016/j.ejmech.2017.10.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 10/09/2017] [Accepted: 10/14/2017] [Indexed: 11/30/2022]
Abstract
Heat shock protein 90 (Hsp90) is a chaperone under investigation for the treatment of cancer and neurodegenerative diseases. Neuroprotective Hsp90 C-terminal inhibitors derived from novobiocin (novologues) include KU-32 and KU-596. These novologues modulate molecular chaperones and result in an induction of Heat Shock Protein 70 (Hsp70). "Noviomimetics" replace the synthetically complex noviose sugar with a simple cyclohexyl moiety to maintain biological efficacy as compared to novologues KU-596 and KU-32. In this study, we further explore the development of noviomimetics and evaluate their efficacy using a luciferase refolding assay, immunoblot analysis, a c-jun assay, and an assay measuring mitochondrial bioenergetics. These new noviomimetics were designed and synthesized and found to induce Hsp70 and improve biological activity. Noviomimetics 39e and 40a were found to induce Hsp70 and exhibit promising effects in cellular assays.
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Affiliation(s)
- Leah K Forsberg
- Department of Medicinal Chemistry, 1251 Wescoe Hall Drive, Malott 4070, The University of Kansas, Lawrence, KS 66045-7563, United States
| | - Mercy Anyika
- Department of Medicinal Chemistry, 1251 Wescoe Hall Drive, Malott 4070, The University of Kansas, Lawrence, KS 66045-7563, United States
| | - Zhenyuan You
- Department of Pharmacology and Toxicology Department, The University of Kansas, Lawrence, KS 66045, United States
| | - Sean Emery
- Department of Pharmacology and Toxicology Department, The University of Kansas, Lawrence, KS 66045, United States
| | - Mason McMullen
- Department of Pharmacology and Toxicology Department, The University of Kansas, Lawrence, KS 66045, United States
| | - Rick T Dobrowsky
- Department of Pharmacology and Toxicology Department, The University of Kansas, Lawrence, KS 66045, United States
| | - Brian S J Blagg
- Department of Chemistry and Biochemistry, 305 McCourtney Hall, The University of Notre Dame, Notre Dame, IN 46556, United States.
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5
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Xu H, Golz C, Strohmann C, Antonchick AP, Waldmann H. Enantiodivergent Combination of Natural Product Scaffolds Enabled by Catalytic Enantioselective Cycloaddition. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201602084] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Hao Xu
- Max-Planck-Institut für Molekulare Physiologie; Abteilung Chemische Biologie; Otto-Hahn-Strasse 11 44227 Dortmund Germany
| | - Christopher Golz
- Technische Universität Dortmund; Fakultät Chemie und Chemische Biologie, Anorganische Chemie; Otto-Hahn-Strasse 6 44221 Dortmund Germany
| | - Carsten Strohmann
- Technische Universität Dortmund; Fakultät Chemie und Chemische Biologie, Anorganische Chemie; Otto-Hahn-Strasse 6 44221 Dortmund Germany
| | - Andrey P. Antonchick
- Max-Planck-Institut für Molekulare Physiologie; Abteilung Chemische Biologie; Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Technische Universität Dortmund; Fakultät Chemie and Chemische Biologie, Chemische Biologie; Otto-Hahn-Strasse 4a 44227 Dortmund Germany
| | - Herbert Waldmann
- Max-Planck-Institut für Molekulare Physiologie; Abteilung Chemische Biologie; Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Technische Universität Dortmund; Fakultät Chemie and Chemische Biologie, Chemische Biologie; Otto-Hahn-Strasse 4a 44227 Dortmund Germany
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6
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Xu H, Golz C, Strohmann C, Antonchick AP, Waldmann H. Enantiodivergent Combination of Natural Product Scaffolds Enabled by Catalytic Enantioselective Cycloaddition. Angew Chem Int Ed Engl 2016; 55:7761-5. [PMID: 27193834 DOI: 10.1002/anie.201602084] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Indexed: 11/06/2022]
Abstract
An efficient strategy has been established for the enantiodivergent synthesis of natural product inspired compounds embodying both tropane and pyrrolidine natural product fragments. This strategy includes the enantioselective kinetic resolution of racemic tropanes by means of a copper(I)-catalyzed [3+2] cycloaddition and allows the preparation of two enantiopure products in a one-pot reaction in high yield and with high diastereo- and enantioselectivity by using one chiral catalyst.
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Affiliation(s)
- Hao Xu
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Strasse 11, 44227, Dortmund, Germany
| | - Christopher Golz
- Technische Universität Dortmund, Fakultät Chemie und Chemische Biologie, Anorganische Chemie, Otto-Hahn-Strasse 6, 44221, Dortmund, Germany
| | - Carsten Strohmann
- Technische Universität Dortmund, Fakultät Chemie und Chemische Biologie, Anorganische Chemie, Otto-Hahn-Strasse 6, 44221, Dortmund, Germany
| | - Andrey P Antonchick
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Strasse 11, 44227, Dortmund, Germany. .,Technische Universität Dortmund, Fakultät Chemie and Chemische Biologie, Chemische Biologie, Otto-Hahn-Strasse 4a, 44227, Dortmund, Germany.
| | - Herbert Waldmann
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Strasse 11, 44227, Dortmund, Germany. .,Technische Universität Dortmund, Fakultät Chemie and Chemische Biologie, Chemische Biologie, Otto-Hahn-Strasse 4a, 44227, Dortmund, Germany.
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7
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Kashinath K, Jadhav PD, Reddy DS. Total synthesis of an anticancer norsesquiterpene alkaloid isolated from the fungus Flammulina velutipes. Org Biomol Chem 2016; 12:4098-103. [PMID: 24769797 DOI: 10.1039/c4ob00300d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The first total synthesis of a norsesquiterpene alkaloid (R)-8-hydroxy-4,7,7-trimethyl-7,8-dihydrocyclopenta[e]isoindole-1,3(2H,6H)-dione, isolated from the mushroom-forming fungus Flammulina velutipes, in both racemic and enantiomeric pure forms, is reported. The (-)-enantiomer of the natural product has been synthesized from the D-(-)-pantolactone chiral pool. The synthesis features a one-pot, three-step reaction sequence comprising an enyne RCM/Diels-Alder/aromatization to construct the desired indane skeleton present in the natural product. Our synthesis further confirms the assigned structure and absolute configuration of the natural product.
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Affiliation(s)
- K Kashinath
- CSIR-National Chemical Laboratory, Division of Organic Chemistry, Dr. HomiBhabha Road, Pune, 411008, India.
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8
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Athawale PR, Kashinath K, Reddy DS. Enantiospecific Formal Synthesis of Inthomycin C. ChemistrySelect 2016. [DOI: 10.1002/slct.201600128] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Paresh R. Athawale
- Division of Organic chemistry; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road, Pune 411008 India
| | - K. Kashinath
- Division of Organic chemistry; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road, Pune 411008 India
| | - D. Srinivasa Reddy
- Division of Organic chemistry; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road, Pune 411008 India
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9
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Anyika M, McMullen M, Forsberg LK, Dobrowsky RT, Blagg BSJ. Development of Noviomimetics as C-Terminal Hsp90 Inhibitors. ACS Med Chem Lett 2016; 7:67-71. [PMID: 26819668 PMCID: PMC4716602 DOI: 10.1021/acsmedchemlett.5b00331] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 12/07/2015] [Indexed: 12/17/2022] Open
Abstract
KU-32 and KU-596 are novobiocin-derived, C-terminal heat shock protein 90 (Hsp90) modulators that induce Hsp70 levels and manifest neuroprotective activity. However, the synthetically complex noviose sugar requires 10 steps to prepare, which makes translational development difficult. In this study, we developed a series of "noviomimetic" analogues of KU-596, which contain noviose surrogates that can be easily prepared, while maintaining the ability to induce Hsp70 levels. Both sugar and sugar analogues were designed, synthesized, and evaluated in a luciferase reporter assay, which identified compound 37, a benzyl containing noviomimetic, as the most potent inducer of Hsp70.
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Affiliation(s)
- Mercy Anyika
- Department
of Medicinal Chemistry, The University of
Kansas, 1251 Wescoe Hall
Drive, Malott 4070, Lawrence, Kansas 66045-7563, United States
| | - Mason McMullen
- Department
of Pharmacology and Toxicology Department, The University of Kansas, Lawrence, Kansas 66045, United States
| | - Leah K. Forsberg
- Department
of Medicinal Chemistry, The University of
Kansas, 1251 Wescoe Hall
Drive, Malott 4070, Lawrence, Kansas 66045-7563, United States
| | - Rick T. Dobrowsky
- Department
of Pharmacology and Toxicology Department, The University of Kansas, Lawrence, Kansas 66045, United States
| | - Brian S. J. Blagg
- Department
of Medicinal Chemistry, The University of
Kansas, 1251 Wescoe Hall
Drive, Malott 4070, Lawrence, Kansas 66045-7563, United States
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10
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Kaufmann E, Hattori H, Miyatake-Ondozabal H, Gademann K. Total Synthesis of the Glycosylated Macrolide Antibiotic Fidaxomicin. Org Lett 2015; 17:3514-7. [PMID: 26125969 DOI: 10.1021/acs.orglett.5b01602] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The first enantioselective total synthesis of fidaxomicin, also known as tiacumicin B or lipiarmycin A3, is reported. This novel glycosylated macrolide antibiotic is used in the clinic for the treatment of Clostridium difficile infections. Key features of the synthesis involve a rapid and high-yielding access to the noviose, rhamnose, and orsellinic acid precursors; the first example of a β-selective noviosylation; an effective Suzuki coupling of highly functionalized substrates; and a ring-closing metathesis reaction of a noviosylated dienoate precursor. Careful selection of protecting groups allowed for a complete deprotection yielding totally synthetic fidaxomicin.
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Affiliation(s)
- Elias Kaufmann
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Hiromu Hattori
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland
| | | | - Karl Gademann
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland
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11
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Sanyal I, Barman PD, Banerjee AK. Stereoselective synthesis of higher homologues of pantolactone from (R)-glyceraldehyde acetonide. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.12.065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Kashinath K, Reddy DS. One-pot quadruple/triple reaction sequence: a useful tool for the synthesis of natural products. Org Biomol Chem 2015; 13:970-3. [PMID: 25407375 DOI: 10.1039/c4ob02143f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multiple reactions in one pot has always been a useful technique for synthetic organic chemists, as it can minimizes solvent usage, time and the number of purification steps when compared to individual multi-step syntheses. In line with this, here in this perspective we discuss a one-pot quadruple/triple reaction sequence comprising an enyne ring-closing metathesis/cross-metathesis/Diels-Alder/aromatization for the synthesis of natural products setting.
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Affiliation(s)
- K Kashinath
- Division of Organic Chemistry, National Chemical Laboratory, Pune, Maharashtra, India.
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