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Wang C, Lin J, Huang H, Ye C, Bao H. Regio- and Diastereoselective Radical Dimerization Reactions for the Construction of Benzo[ f]isoindole Dimers. Org Lett 2024; 26:2580-2584. [PMID: 38526484 DOI: 10.1021/acs.orglett.4c00587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
This study presents a novel approach for synthesizing benzo[f]isoindole dimers, which involves cascade cyclization and oxidative radical dimerization. Our method allows for the formation of up to five carbon-carbon bonds in a single reaction, exhibiting remarkable diastereoselectivity and regioselectivity. The mechanism and regioselectivity were investigated through a combination of experiments and calculations.
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Affiliation(s)
- Chuanchuan Wang
- College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, P. R. of China
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
- Fujian College, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
| | - Jingyi Lin
- College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, P. R. of China
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
- Fujian College, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
| | - Haiyang Huang
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
| | - Changqing Ye
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
| | - Hongli Bao
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
- Fujian College, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. of China
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2
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Ji K, Johnson RP, McNeely J, Al Faruk M, Porco JA. Asymmetric Synthesis of Nidulalin A and Nidulaxanthone A: Selective Carbonyl Desaturation Using an Oxoammonium Salt. J Am Chem Soc 2024; 146:4892-4902. [PMID: 38319883 PMCID: PMC10922861 DOI: 10.1021/jacs.3c13864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Nidulaxanthone A is a dimeric, dihydroxanthone natural product that was isolated in 2020 from Aspergillus sp. Structurally, the compound features an unprecedented heptacyclic 6/6/6/6/6/6/6 ring system which is unusual for natural xanthone dimers. Biosynthetically, nidulaxanthone A originates from the monomer nidulalin A via stereoselective Diels-Alder dimerization. To expedite the synthesis of nidulalin A and study the proposed dimerization, we developed methodology involving the use of allyl triflate for chromone ester activation, followed by vinylogous addition, to rapidly forge the nidulalin A scaffold in a four-step sequence which also features ketone desaturation using Bobbitt's oxoammonium salt. An asymmetric synthesis of nidulalin A was achieved using acylative kinetic resolution (AKR) of chiral, racemic 2H-nidulalin A. Dimerization of enantioenriched nidulalin A to nidulaxanthone A was achieved using solvent-free, thermolytic conditions. Computational studies have been conducted to probe both the oxoammonium-mediated desaturation and (4 + 2) dimerization events.
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Affiliation(s)
- Kaijie Ji
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
- Center for Molecular Discovery (BU-CMD), Boston University, Boston, Massachusetts 02215, United States
| | - Richard P. Johnson
- Department of Chemistry, University of New Hampshire, Durham, New Hampshire 03824, USA
| | - James McNeely
- Center for Molecular Discovery (BU-CMD), Boston University, Boston, Massachusetts 02215, United States
| | - Md Al Faruk
- Department of Chemistry, University of New Hampshire, Durham, New Hampshire 03824, USA
| | - John A. Porco
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
- Center for Molecular Discovery (BU-CMD), Boston University, Boston, Massachusetts 02215, United States
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3
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Bitchagno GTM, Nchiozem-Ngnitedem VA, Melchert D, Fobofou SA. Demystifying racemic natural products in the homochiral world. Nat Rev Chem 2022; 6:806-822. [PMID: 37118098 PMCID: PMC9562063 DOI: 10.1038/s41570-022-00431-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2022] [Indexed: 12/03/2022]
Abstract
Natural products possess structural complexity, diversity and chirality with attractive functions and biological activities that have significantly impacted drug discovery initiatives. Chiral natural products are abundant in nature but rarely occur as racemates. The occurrence of natural products as racemates is very intriguing from a biosynthetic point of view; as enzymes are chiral molecules, enzymatic reactions generating natural products should be stereospecific and lead to single-enantiomer products. Despite several reports in the literature describing racemic mixtures of stereoisomers isolated from natural sources, there has not been a comprehensive review of these intriguing racemic natural products. The discovery of many more natural racemates and their potential enzymatic sources in recent years allows us to describe the distribution and chemical diversity of this ‘class of natural products’ to enrich discussions on biosynthesis. In this Review, we describe the chemical classes, occurrence and distribution of pairs of enantiomers in nature and provide insights about recent advances in analytical methods used for their characterization. Special emphasis is on the biosynthesis, including plausible enzymatic and non-enzymatic formation of natural racemates, and their pharmacological significance. ![]()
Racemic natural products display a wealth of bioactivities and chemical diversity. Their derivation from intriguing racemization processes, through enzymatic or non-enzymatic pathways, are discussed here, as well as their pharmacological properties and the analytical techniques developed for their identification, resolution and characterization.
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4
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Bouthillette LM, Aniebok V, Colosimo DA, Brumley D, MacMillan JB. Nonenzymatic Reactions in Natural Product Formation. Chem Rev 2022; 122:14815-14841. [PMID: 36006409 DOI: 10.1021/acs.chemrev.2c00306] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Biosynthetic mechanisms of natural products primarily depend on systems of protein catalysts. However, within the field of biosynthesis, there are cases in which the inherent chemical reactivity of metabolic intermediates and substrates evades the involvement of enzymes. These reactions are difficult to characterize based on their reactivity and occlusion within the milieu of the cellular environment. As we continue to build a strong foundation for how microbes and higher organisms produce natural products, therein lies a need for understanding how protein independent or nonenzymatic biosynthetic steps can occur. We have classified such reactions into four categories: intramolecular, multicomponent, tailoring, and light-induced reactions. Intramolecular reactions is one of the most well studied in the context of biomimetic synthesis, consisting of cyclizations and cycloadditions due to the innate reactivity of the intermediates. There are two subclasses that make up multicomponent reactions, one being homologous multicomponent reactions which results in dimeric and pseudodimeric natural products, and the other being heterologous multicomponent reactions, where two or more precursors from independent biosynthetic pathways undergo a variety of reactions to produce the mature natural product. The third type of reaction discussed are tailoring reactions, where postmodifications occur on the natural products after the biosynthetic machinery is completed. The last category consists of light-induced reactions involving ecologically relevant UV light rather than high intensity UV irradiation that is traditionally used in synthetic chemistry. This review will cover recent nonenzymatic biosynthetic mechanisms and include sources for those reviewed previously.
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Affiliation(s)
- Leah M Bouthillette
- Deparment of Chemistry and Biochemistry, University of California, Santa Cruz, 1156 High Street, Santa Cruz, California 95064, United States
| | - Victor Aniebok
- Deparment of Chemistry and Biochemistry, University of California, Santa Cruz, 1156 High Street, Santa Cruz, California 95064, United States
| | - Dominic A Colosimo
- Department of Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390 United States
| | - David Brumley
- Department of Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390 United States
| | - John B MacMillan
- Deparment of Chemistry and Biochemistry, University of California, Santa Cruz, 1156 High Street, Santa Cruz, California 95064, United States.,Department of Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390 United States
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5
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Rammohan A, Krinochkin AP, Khasanov AF, Kopchuk DS, Zyryanov GV. Sustainable Solvent-Free Diels-Alder Approaches in the Development of Constructive Heterocycles and Functionalized Materials: A Review. Top Curr Chem (Cham) 2022; 380:43. [PMID: 35951264 DOI: 10.1007/s41061-022-00398-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 06/15/2022] [Indexed: 10/15/2022]
Abstract
The Diels-Alder reaction (DAR) is found in myriad applications in organic synthesis and medicinal chemistry for drug development, as it is the method of choice for the expedient synthesis of complex natural compounds and innovative materials including nanomaterials, graphene expanses, and polymeric nanofibers. Furthermore, the greatest focus of attention of DARs is on the consistent reaction procedure with stimulus yields by highly stereo- and regioselective mechanistic pathways. Therefore, the present review is intended to summarize conventional solvent-free (SF) DARs for the expedient synthesis of heterocyclic compounds and materials. In particular, this review deals with the DARs of mechanochemical grinding, catalysis (including stereoselective catalysts), thermal, and electromagnetic radiation (such as microwave [MW], infrared [IR], and ultraviolet [UV] irradiation) in SF procedures. Therefore, this comprehensive review validates the application of DARs to pharmaceutical innovations and biorenewable materials through consistent synthetic approaches.
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Affiliation(s)
- Aluru Rammohan
- Ural Federal University, 19 Mira St., Ekaterinburg, 620002, Russian Federation.
| | - Alexey P Krinochkin
- Ural Federal University, 19 Mira St., Ekaterinburg, 620002, Russian Federation.,I. Ya. Postovsky Institute of Organic Synthesis, Ural Division of the Russian Academy of Sciences, 22 S. Kovalevskoy St., Ekaterinburg, 620219, Russian Federation
| | - Albert F Khasanov
- Ural Federal University, 19 Mira St., Ekaterinburg, 620002, Russian Federation.,I. Ya. Postovsky Institute of Organic Synthesis, Ural Division of the Russian Academy of Sciences, 22 S. Kovalevskoy St., Ekaterinburg, 620219, Russian Federation
| | - Dmitry S Kopchuk
- Ural Federal University, 19 Mira St., Ekaterinburg, 620002, Russian Federation.,I. Ya. Postovsky Institute of Organic Synthesis, Ural Division of the Russian Academy of Sciences, 22 S. Kovalevskoy St., Ekaterinburg, 620219, Russian Federation
| | - Grigory V Zyryanov
- Ural Federal University, 19 Mira St., Ekaterinburg, 620002, Russian Federation. .,I. Ya. Postovsky Institute of Organic Synthesis, Ural Division of the Russian Academy of Sciences, 22 S. Kovalevskoy St., Ekaterinburg, 620219, Russian Federation.
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6
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Bestwick JS, Jones DJ, Jones HE, Kalomenopoulos PG, Szabla R, Lawrence AL. Total Synthesis and Prediction of Ulodione Natural Products Guided by DFT Calculations**. Angew Chem Int Ed Engl 2022; 61:e202207004. [PMID: 35670364 PMCID: PMC9401604 DOI: 10.1002/anie.202207004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Indexed: 11/11/2022]
Abstract
A biomimetic synthetic strategy has resulted in a two‐step total synthesis of (±)‐ulodione A and the prediction of two potential natural products, (±)‐ulodiones C and D. This work was guided by computational investigations into the selectivity of a proposed biosynthetic Diels–Alder dimerization, which was then utilized in the chemical synthesis. This work highlights how biosynthetic considerations can both guide the design of efficient synthetic strategies and lead to the anticipation of new natural products.
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Affiliation(s)
- Jacob S. Bestwick
- EaStCHEM School of Chemistry University of Edinburgh Joseph Black Building David Brewster Road Edinburgh EH9 3FJ UK
| | - David J. Jones
- EaStCHEM School of Chemistry University of Edinburgh Joseph Black Building David Brewster Road Edinburgh EH9 3FJ UK
| | - Helen E. Jones
- EaStCHEM School of Chemistry University of Edinburgh Joseph Black Building David Brewster Road Edinburgh EH9 3FJ UK
- Current address: Oncology R&D AstraZeneca Cambridge CB4 0WG UK
| | - Panagiotis G. Kalomenopoulos
- EaStCHEM School of Chemistry University of Edinburgh Joseph Black Building David Brewster Road Edinburgh EH9 3FJ UK
- Current address: Process Chemistry Pharmaron Hoddesdon EN11 9FH UK
| | - Rafal Szabla
- Department of Physical and Quantum Chemistry Faculty of Chemistry Wrocław University of Science and Technology Wrocław Poland
| | - Andrew L. Lawrence
- EaStCHEM School of Chemistry University of Edinburgh Joseph Black Building David Brewster Road Edinburgh EH9 3FJ UK
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7
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Bestwick JS, Jones DJ, Jones HE, Kalomenopoulos PG, Szabla R, Lawrence AL. Total Synthesis and Prediction of Ulodione Natural Products Guided by DFT Calculations. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jacob S. Bestwick
- The University of Edinburgh EaStCHEM School of Chemistry UNITED KINGDOM
| | - David J. Jones
- The University of Edinburgh EaStCHEM School of Chemistry UNITED KINGDOM
| | - Helen E. Jones
- The University of Edinburgh EaStCHEM School of Chemistry UNITED KINGDOM
| | | | - Rafal Szabla
- Wroclaw University of Science and Technology: Politechnika Wroclawska Department of Physical and Quantum Chemistry POLAND
| | - Andrew Leslie Lawrence
- University of Edinburgh EaStCHEM School of Chemistry Joseph Black BuildingDavid Brewster Road EH9 3FJ Edinburgh UNITED KINGDOM
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8
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Li B, Guan X, Yang S, Zou Y, Liu W, Houk KN. Mechanism of the Stereoselective Catalysis of Diels-Alderase PyrE3 Involved in Pyrroindomycin Biosynthesis. J Am Chem Soc 2022; 144:5099-5107. [PMID: 35258962 DOI: 10.1021/jacs.2c00015] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The biosynthesis of pyrroindomycins A and B features a complexity-building [4 + 2] cycloaddition cascade, which generates the spirotetramate core under the catalytic effects of monofunctional Diels-Alderases PyrE3 and PyrI4. We recently showed that the main functions of PyrI4 include acid catalysis and induced-fit/conformational selection. We now present quantum mechanical and molecular dynamics studies implicating a different mode of action by PyrE3, which prearranges an anionic polyene substrate into a high-energy reactive conformation at which an inverse-electron-demand Diels-Alder reaction can occur with a low barrier. Stereoselection is realized by strong binding interactions at the endo stereochemical relationship and a local steric constraint on the endo-1,3-diene unit. These findings, illustrating distinct mechanisms for PyrE3 and PyrI4, highlight how nature has evolved multiple ways to catalyze Diels-Alder reactions.
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Affiliation(s)
- Bo Li
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Xingyi Guan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Song Yang
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Yike Zou
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Wen Liu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
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9
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Suzuki T, Watanabe S, Ikeda W, Kobayashi S, Tanino K. Biomimetic Total Syntheses of (+)-Chloropupukeananin, (-)-Chloropupukeanolide D, and Chloropestolides. J Org Chem 2021; 86:15597-15605. [PMID: 34672579 DOI: 10.1021/acs.joc.1c02108] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Chloropupukeananin, chloropupukeanolides, and chloropestolides are a family of structurally complex bioactive natural products that possess highly functionalized tricyclo[4.3.1.03,7]decane or bicyclo[2.2.2]octane skeletons. Biosynthesis of the chloropupukeananin family is triggered by the intermolecular heterodimeric Diels-Alder reaction between maldoxin and iso-A82775C; however, the enzymes involved have not yet been identified. We herein report the one-pot biomimetic synthesis of chloropupukeananin and chloropupukeanolide D. Moreover, the effect of the solvent on the intermolecular Diels-Alder reaction of siccayne and maldoxin suggested that the biosynthesis of the chloropupukeananin family involves a Diels-Alderase-catalyzed heterodimeric Diels-Alder reaction.
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Affiliation(s)
- Takahiro Suzuki
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Hokkaido, Japan
| | - Soichiro Watanabe
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo 060-0810, Hokkaido, Japan
| | - Wataru Ikeda
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo 060-0810, Hokkaido, Japan
| | - Susumu Kobayashi
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda 278-8510, Chiba, Japan
| | - Keiji Tanino
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Hokkaido, Japan
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10
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Peixoto PA, El Assal M, Chataigner I, Castet F, Cornu A, Coffinier R, Bosset C, Deffieux D, Pouységu L, Quideau S. Bispericyclic Diels–Alder Dimerization of
ortho
‐Quinols in Natural Product (Bio)Synthesis: Bioinspired Chemical 6‐Step Synthesis of (+)‐Maytenone. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103410] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Philippe A. Peixoto
- Univ. Bordeaux ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
| | - Mourad El Assal
- Univ. Bordeaux ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
| | - Isabelle Chataigner
- Laboratoire COBRA (CNRS-UMR 6014) Normandie Université INSA Rouen UNIROUEN 1 rue Tesnière 76821 Mont-Saint-Aignan Cedex France
- Present address: Sorbonne Université LCT (CNRS-UMR 7616) 4 place Jussieu 75052 Paris Cedex France
| | - Frédéric Castet
- Univ. Bordeaux ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
| | - Anaëlle Cornu
- Univ. Bordeaux ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
| | - Romain Coffinier
- Univ. Bordeaux ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
| | - Cyril Bosset
- Univ. Bordeaux ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
| | - Denis Deffieux
- Univ. Bordeaux ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
| | - Laurent Pouységu
- Univ. Bordeaux ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
| | - Stéphane Quideau
- Univ. Bordeaux ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
- Institut Universitaire de France 1 rue Descartes 75231 Paris Cedex 05 France
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11
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Peixoto PA, El Assal M, Chataigner I, Castet F, Cornu A, Coffinier R, Bosset C, Deffieux D, Pouységu L, Quideau S. Bispericyclic Diels-Alder Dimerization of ortho-Quinols in Natural Product (Bio)Synthesis: Bioinspired Chemical 6-Step Synthesis of (+)-Maytenone. Angew Chem Int Ed Engl 2021; 60:14967-14974. [PMID: 33851775 DOI: 10.1002/anie.202103410] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Indexed: 12/15/2022]
Abstract
Many natural products of plant or microbial origins are derived from enzymatic dearomative oxygenation of 2-alkylphenolic precursors into 6-alkyl-6-hydroxycyclohexa-2,4-dienones. These so-called ortho-quinols cyclodimerize via a remarkably selective bispericyclic Diels-Alder reaction. Whether or not the intervention of catalytic or dirigent proteins is involved during this final step of the biosynthesis of these natural products, this cyclodimerization of ortho-quinols can be chemically reproduced in the laboratory with the same strict level of site-specific regioselectivity and stereoselectivity. This unique yet unified process, which finds its rationale in the inherent chemical reactivity of those ortho-quinols, is illustrated herein by an efficient and bioinspired first chemical synthesis of one of the most structurally complex and synthetically challenging examples of such natural cyclodimers, the bisditerpenoid (+)-maytenone.
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Affiliation(s)
- Philippe A Peixoto
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France
| | - Mourad El Assal
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France
| | - Isabelle Chataigner
- Laboratoire COBRA (CNRS-UMR 6014), Normandie Université, INSA Rouen, UNIROUEN, 1 rue Tesnière, 76821, Mont-Saint-Aignan Cedex, France.,Present address: Sorbonne Université, LCT (CNRS-UMR 7616), 4 place Jussieu, 75052, Paris Cedex, France
| | - Frédéric Castet
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France
| | - Anaëlle Cornu
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France
| | - Romain Coffinier
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France
| | - Cyril Bosset
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France
| | - Denis Deffieux
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France
| | - Laurent Pouységu
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France
| | - Stéphane Quideau
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France.,Institut Universitaire de France, 1 rue Descartes, 75231, Paris Cedex 05, France
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12
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Sun J, Yang H, Tang W. Recent advances in total syntheses of complex dimeric natural products. Chem Soc Rev 2021; 50:2320-2336. [PMID: 33470268 DOI: 10.1039/d0cs00220h] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Dimeric natural products are a collection of molecules with diverse molecular architectures and significant bio-activities. In this tutorial review, total synthesis of complex dimeric natural products accomplished in recent years are summarized and various dimerization strategies are discussed. By highlighting the selected representative examples, this review aims to demonstrate the recent tactics of dimerization which is an important process integrated into the whole synthetic sequences of dimeric natural products, provide insights on structural and chemical properties of monomers and dimers of related natural products, and promote further technological advances in organic synthesis and biological studies of complex dimeric natural products.
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Affiliation(s)
- Jiawei Sun
- State Key Laboratory of Bio-Organic & Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.
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13
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Quijano-Quiñones RF, Guadarrama-Moreno J, Quesadas-Rojas M, Mena-Rejón GJ, Castro-Segura CS, Cáceres-Castillo D. The origin of the regiospecificity of acrolein dimerization. RSC Adv 2021; 11:7459-7465. [PMID: 35423251 PMCID: PMC8695078 DOI: 10.1039/d0ra10084f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/07/2021] [Indexed: 11/21/2022] Open
Abstract
The NCI at the transition state are the key factor controlling the regiospecificity in the acrolein dimerization.
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Affiliation(s)
| | | | - Mariana Quesadas-Rojas
- Posgrado en Ciencias del Mar y Limnología
- UNAM
- Mexico
- Escuela Nacional de Educación Superior
- UNAM
| | - Gonzalo J. Mena-Rejón
- Laboratorio de Química Farmaceútica
- Facultad de Química
- Universidad Autónoma de Yucatán
- Mérida
- Mexico
| | | | - David Cáceres-Castillo
- Laboratorio de Química Farmaceútica
- Facultad de Química
- Universidad Autónoma de Yucatán
- Mérida
- Mexico
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14
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Alvarez R, de Lera AR. Natural polyenic macrolactams and polycyclic derivatives generated by transannular pericyclic reactions: optimized biogenesis challenging chemical synthesis. Nat Prod Rep 2020; 38:1136-1220. [PMID: 33283831 DOI: 10.1039/d0np00050g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Covering from 1992 to the end of 2020-11-20.Genetically-encoded polyenic macrolactams, which are constructed by Nature using hybrid polyketide synthase/nonribosomal peptide synthase (PKSs/NRPSs) assembly lines, are part of the large collection of natural products isolated from bacteria. Activation of cryptic (i.e., silent) gene clusters in these microorganisms has more recently allowed to generate and eventually isolate additional members of the family. Having two unsaturated fragments separated by short saturated chains, the primary macrolactam is posited to undergo transannular reactions and further rearrangements thus leading to the generation of a structurally diverse collection of polycyclic (natural) products and oxidized derivatives. The review will cover the challenges that scientists face on the isolation of these unstable compounds from the cultures of the producing microorganisms, their structural characterization, biological activities, optimized biogenetic routes, as well as the skeletal rearrangements of the primary structures of the natural macrolactams derived from pericyclic reactions of the polyenic fragments. The efforts of the synthetic chemists to emulate Nature on the successful generation and structural confirmation of these natural products will also be reported.
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Affiliation(s)
- Rosana Alvarez
- Department of Organic Chemistry and Center for Biomedical Research (CINBIO), IBIV, Universidade de Vigo, 36310 Vigo, Spain.
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15
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16
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Bhat BA, Rashid S, Mehta G. Progress in the Total Synthesis of Natural Products Embodying Diverse Furofuranone Motifs: A New Millennium Update. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000401] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Bilal A. Bhat
- CSIR-Medicinal Chemistry Division Indian Institute of Integrative Medicine Sanat Nagar Srinagar 190005 India
- Academy of Scientific and Innovative Research CSIR-Indian Institute of Integrative Medicine Canal Road Jammu 180001 India
| | - Showkat Rashid
- CSIR-Medicinal Chemistry Division Indian Institute of Integrative Medicine Sanat Nagar Srinagar 190005 India
- Academy of Scientific and Innovative Research CSIR-Indian Institute of Integrative Medicine Canal Road Jammu 180001 India
- School of Chemistry, University of Hyderabad Hyderabad 500046 India
| | - Goverdhan Mehta
- School of Chemistry, University of Hyderabad Hyderabad 500046 India
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17
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Yin X, Jia H, Zhang Q, Jiang Y, Tu P. (+)- and (-)-Corydecumbenines A and B, two pairs of novel quaternary protoberberine alkaloid cycloadduct enantiomers with anti-neuroinflammatory and neuroprotective activities from the rhizomes of Corydalis decumbens. Bioorg Chem 2020; 104:104251. [PMID: 32920361 DOI: 10.1016/j.bioorg.2020.104251] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 07/21/2020] [Accepted: 08/27/2020] [Indexed: 02/06/2023]
Abstract
Two novel Diels-Alder [4 + 2] cycloadducts of quaternary protoberberine alkaloids and fumaric acid monoanion, corydecumbenines A and B (1 and 2), and six known isoquinoline analogues (3-8) were isolated from the rhizomes of Corydalis decumbens. The planar structures of 1 and 2 were elucidated by extensive spectroscopic analysis including UV, IR, HRESIMS, 1D and 2D NMR. Chiral chromatography of 1 and 2 afforded two pairs of enantiomers (+)-corydecumbenine A (1a), (-)-corydecumbenine A (1b), (+)-corydecumbenine B (2a), and (-)-corydecumbenine B (2b), respectively, and their absolute configurations were determined by single-crystal X-ray crystallography and comparison of experimental and calculated electronic circular dichroism (ECD) spectra. Compounds 1b and 2b exhibited significant nitric oxide (NO) inhibitory activities in lipopolysaccharide (LPS)-stimulated BV-2 cells with IC50 values of 11.6 and 16.2 μM, respectively, comparable to the positive control indomethacin (IC50 = 10.3 μM), and they could also decrease the level of interleukin (IL)-1β in BV-2 cells in a dose-dependent manner. Most of the isolates showed neuroprotective effects against the injury of OGD/R-induced PC12 cells at 20 μM.
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Affiliation(s)
- Xu Yin
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Hongli Jia
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Qingying Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yong Jiang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Pengfei Tu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
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18
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Liu B, Fu S, Zhou C. Naturally occurring [4 + 2] type terpenoid dimers: sources, bioactivities and total syntheses. Nat Prod Rep 2020; 37:1627-1660. [DOI: 10.1039/c9np00037b] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
This review article highlights recent progress on their sources, bioactivities, biosynthetic hypotheses and total chemical syntheses of naturally occurring [4 + 2] type terpenoid dimers.
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Affiliation(s)
- Bo Liu
- Key Laboratory of Green Chemistry & Technology of the Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Shaomin Fu
- Key Laboratory of Green Chemistry & Technology of the Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Chengying Zhou
- Key Laboratory of Green Chemistry & Technology of the Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
- China
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19
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Novak AJE, Grigglestone CE, Trauner D. A Biomimetic Synthesis Elucidates the Origin of Preuisolactone A. J Am Chem Soc 2019; 141:15515-15518. [PMID: 31518120 DOI: 10.1021/jacs.9b08892] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A short, biomimetic synthesis of the fungal metabolite preuisolactone A is described. Its key steps are a purpurogallin-type (5 + 2)-cycloaddition, followed by fragmentation, vinylogous aldol addition, oxidative lactonization, and a final benzilic acid rearrangement. Our work explains why preuisolactone A has been isolated as a racemate and suggests that the natural product is not a sesquiterpenoid but a phenolic polyketide.
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Affiliation(s)
- Alexander J E Novak
- Department of Chemistry , New York University , Silver Center, 100 Washington Square East, Room 712 , New York , New York 10002 , United States
| | - Claire E Grigglestone
- Department of Chemistry , New York University , Silver Center, 100 Washington Square East, Room 712 , New York , New York 10002 , United States
| | - Dirk Trauner
- Department of Chemistry , New York University , Silver Center, 100 Washington Square East, Room 712 , New York , New York 10002 , United States
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20
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Palani V, Hugelshofer CL, Sarpong R. A Unified Strategy for the Enantiospecific Total Synthesis of Delavatine A and Formal Synthesis of Incarviatone A. J Am Chem Soc 2019; 141:14421-14432. [DOI: 10.1021/jacs.9b07693] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Vignesh Palani
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Cedric L. Hugelshofer
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Richmond Sarpong
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
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21
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Lichman BR, O'Connor SE, Kries H. Biocatalytic Strategies towards [4+2] Cycloadditions. Chemistry 2019; 25:6864-6877. [DOI: 10.1002/chem.201805412] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 01/17/2019] [Indexed: 11/05/2022]
Affiliation(s)
- Benjamin R. Lichman
- Department of Biological Chemistry; The John Innes Centre; Colney Lane Norwich UK
- Current address: Department of Biology; University of York; York YO10 5YW UK
| | - Sarah E. O'Connor
- Department of Biological Chemistry; The John Innes Centre; Colney Lane Norwich UK
| | - Hajo Kries
- Independent Junior Research Group, Biosynthetic Design of Natural Products; Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute (HKI Jena); Beutenbergstr. 11a 07745 Jena Germany
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22
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Palani V, Hugelshofer CL, Kevlishvili I, Liu P, Sarpong R. A Short Synthesis of Delavatine A Unveils New Insights into Site-Selective Cross-Coupling of 3,5-Dibromo-2-pyrone. J Am Chem Soc 2019; 141:2652-2660. [DOI: 10.1021/jacs.8b13012] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vignesh Palani
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Cedric L. Hugelshofer
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Ilia Kevlishvili
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Richmond Sarpong
- Department of Chemistry, University of California, Berkeley, California 94720, United States
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23
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Wang Z, Zhou Y, Zhang JX, Krummenacher I, Braunschweig H, Lin Z. DFT Studies on the Reactions of Boroles with Alkynes. Chemistry 2018; 24:9612-9621. [DOI: 10.1002/chem.201801094] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 04/04/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Zheng Wang
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon Hong Kong P.R. China
| | - Yu Zhou
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon Hong Kong P.R. China
| | - Jing-Xuan Zhang
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon Hong Kong P.R. China
| | - Ivo Krummenacher
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Holger Braunschweig
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Zhenyang Lin
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon Hong Kong P.R. China
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24
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Liu L, Xu GL, Ma XX, Khan A, Tan WH, Yang ZY, Zhou ZH. Sweritranslactones A–C: Unusual Skeleton Secoiridoid Dimers via [4 + 2] Cycloaddition from Swertiamarin. J Org Chem 2017; 82:13263-13267. [DOI: 10.1021/acs.joc.7b02383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lu Liu
- Yunnan
Key Laboratory of Dai and Yi Medicines, Yunnan University of Traditional Chinese Medicine, Kunming 650500, People’s Republic of China
| | - Guan-Ling Xu
- Yunnan
Key Laboratory of Dai and Yi Medicines, Yunnan University of Traditional Chinese Medicine, Kunming 650500, People’s Republic of China
| | - Xiao-Xia Ma
- Yunnan
Key Laboratory of Dai and Yi Medicines, Yunnan University of Traditional Chinese Medicine, Kunming 650500, People’s Republic of China
| | - Afsar Khan
- Department
of Chemistry, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan
| | - Wen-Hong Tan
- Yunnan
Key Laboratory of Dai and Yi Medicines, Yunnan University of Traditional Chinese Medicine, Kunming 650500, People’s Republic of China
| | - Zhu-Ya Yang
- Yunnan
Key Laboratory of Dai and Yi Medicines, Yunnan University of Traditional Chinese Medicine, Kunming 650500, People’s Republic of China
| | - Zhi-Hong Zhou
- Yunnan
Key Laboratory of Dai and Yi Medicines, Yunnan University of Traditional Chinese Medicine, Kunming 650500, People’s Republic of China
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25
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Zask A, Ellestad G. Biomimetic syntheses of racemic natural products. Chirality 2017; 30:157-164. [DOI: 10.1002/chir.22786] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 08/31/2017] [Accepted: 09/26/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Arie Zask
- Department of Biological Sciences; Columbia University; New York New York
| | - George Ellestad
- Department of Chemistry; Columbia University; New York New York
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26
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Hare SR, Tantillo DJ. Post-transition state bifurcations gain momentum – current state of the field. PURE APPL CHEM 2017. [DOI: 10.1515/pac-2017-0104] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe existence of post-transition state bifurcations on potential energy surfaces for organic and biological reaction mechanisms has been known for decades, but recently, new reports of bifurcations have been occurring at a much higher rate. Beyond simply discovering bifurcations, computational chemists are developing techniques to understand what aspects of molecular structure and vibrations control the product selectivity in systems containing bifurcations. For example, the distribution of products seen in simulations has been found to be extremely sensitive to the local environment of the reacting system (i.e. the presence of a catalyst, enzyme, or explicit solvent molecules). The outlook for the future of this field is discussed, with an eye towards the application of the principles discussed here by experimental chemists to design a reaction setup to efficiently generate desired products.
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Affiliation(s)
- Stephanie R. Hare
- University of California, Davis, 1 Shields Avenue, Davis, CA 95616, USA
| | - Dean J. Tantillo
- University of California, Davis, 1 Shields Avenue, Davis, CA 95616, USA
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27
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De Silvestro I, Drew SL, Nichol GS, Duarte F, Lawrence AL. Total Synthesis of a Dimeric Thymol Derivative Isolated from Arnica sachalinensis. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Irene De Silvestro
- EaStCHEM School of Chemistry; University of Edinburgh; Joseph Black Building, David Brewster Road Edinburgh EH9 3FJ UK
| | - Samuel L. Drew
- Research School of Chemistry; Australian National University; Canberra ACT 2601 Australia
- Present address: Department of Chemistry; University of California; Irvine CA 92697-2025 USA
| | - Gary S. Nichol
- EaStCHEM School of Chemistry; University of Edinburgh; Joseph Black Building, David Brewster Road Edinburgh EH9 3FJ UK
| | - Fernanda Duarte
- EaStCHEM School of Chemistry; University of Edinburgh; Joseph Black Building, David Brewster Road Edinburgh EH9 3FJ UK
| | - Andrew L. Lawrence
- EaStCHEM School of Chemistry; University of Edinburgh; Joseph Black Building, David Brewster Road Edinburgh EH9 3FJ UK
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28
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Synthesis and Structural Modification of Marine Natural Products. Molecules 2017; 22:molecules22060882. [PMID: 28587140 PMCID: PMC6152746 DOI: 10.3390/molecules22060882] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 05/23/2017] [Accepted: 05/24/2017] [Indexed: 11/16/2022] Open
Abstract
In the last decades, marine natural products (MNPs), have attracted extensive interest from both chemists and pharmacologists due to their chemical and bioactive diversities. This special issue, collecting total synthesis and structural modification of six different type of bioactive MNPs, is expected to inspire and attract more research effects invested into MNP research.
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29
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De Silvestro I, Drew SL, Nichol GS, Duarte F, Lawrence AL. Total Synthesis of a Dimeric Thymol Derivative Isolated from Arnica sachalinensis. Angew Chem Int Ed Engl 2017; 56:6813-6817. [DOI: 10.1002/anie.201701481] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Irene De Silvestro
- EaStCHEM School of Chemistry; University of Edinburgh; Joseph Black Building, David Brewster Road Edinburgh EH9 3FJ UK
| | - Samuel L. Drew
- Research School of Chemistry; Australian National University; Canberra ACT 2601 Australia
- Present address: Department of Chemistry; University of California; Irvine CA 92697-2025 USA
| | - Gary S. Nichol
- EaStCHEM School of Chemistry; University of Edinburgh; Joseph Black Building, David Brewster Road Edinburgh EH9 3FJ UK
| | - Fernanda Duarte
- EaStCHEM School of Chemistry; University of Edinburgh; Joseph Black Building, David Brewster Road Edinburgh EH9 3FJ UK
| | - Andrew L. Lawrence
- EaStCHEM School of Chemistry; University of Edinburgh; Joseph Black Building, David Brewster Road Edinburgh EH9 3FJ UK
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30
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Villar López R, Faza ON, Silva López C. Dynamic Effects Responsible for High Selectivity in a [3,3] Sigmatropic Rearrangement Featuring a Bispericyclic Transition State. J Org Chem 2017; 82:4758-4765. [DOI: 10.1021/acs.joc.7b00425] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Roberto Villar López
- Departamento de Química
Orgánica, Universidade de Vigo, Campus Lagoas-Marcosende, 36310 Vigo, Spain
| | - Olalla Nieto Faza
- Departamento de Química
Orgánica, Universidade de Vigo, Campus Lagoas-Marcosende, 36310 Vigo, Spain
| | - Carlos Silva López
- Departamento de Química
Orgánica, Universidade de Vigo, Campus Lagoas-Marcosende, 36310 Vigo, Spain
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31
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Abstract
This review defines symmetric molecules from a synthetic perspective and shows various strategies that take advantage of molecular symmetry to construct them.
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Affiliation(s)
- Wen-Ju Bai
- Department of Chemistry
- Stanford University
- Stanford
- USA
| | - Xiqing Wang
- College of Bioscience and Biotechnology
- Yangzhou University
- Yangzhou
- China
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32
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Abstract
[4 + 2]-Cycloadditions are increasingly being recognized in the biosynthetic pathways of many structurally complex natural products. A relatively small collection of enzymes from these pathways have been demonstrated to increase rates of cyclization and impose stereochemical constraints on the reactions. While mechanistic investigation of these enzymes is just beginning, recent studies have provided new insights with implications for understanding their biosynthetic roles, mechanisms of catalysis, and evolutionary origin.
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Affiliation(s)
- Byung-Sun Jeon
- Department of Chemistry and ‡Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, University of Texas at Austin , Austin, Texas 78712, United States
| | - Shao-An Wang
- Department of Chemistry and ‡Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, University of Texas at Austin , Austin, Texas 78712, United States
| | - Mark W Ruszczycky
- Department of Chemistry and ‡Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, University of Texas at Austin , Austin, Texas 78712, United States
| | - Hung-Wen Liu
- Department of Chemistry and ‡Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, University of Texas at Austin , Austin, Texas 78712, United States
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33
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Yan Y, Yang J, Yu Z, Yu M, Ma YT, Wang L, Su C, Luo J, Horsman GP, Huang SX. Non-enzymatic pyridine ring formation in the biosynthesis of the rubrolone tropolone alkaloids. Nat Commun 2016; 7:13083. [PMID: 27713400 PMCID: PMC5059770 DOI: 10.1038/ncomms13083] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Accepted: 09/01/2016] [Indexed: 11/16/2022] Open
Abstract
The pyridine ring is a potent pharmacophore in alkaloid natural products. Nonetheless, its biosynthetic pathways are poorly understood. Rubrolones A and B are tropolone alkaloid natural products possessing a unique tetra-substituted pyridine moiety. Here, we report the gene cluster and propose a biosynthetic pathway for rubrolones, identifying a key intermediate that accumulates upon inactivation of sugar biosynthetic genes. Critically, this intermediate was converted to the aglycones of rubrolones by non-enzymatic condensation and cyclization with either ammonia or anthranilic acid to generate the respective pyridine rings. We propose that this non-enzymatic reaction occurs via hydrolysis of the key intermediate, which possesses a 1,5-dione moiety as an amine acceptor capable of cyclization. This study suggests that 1,5-dione moieties may represent a general strategy for pyridine ring biosynthesis, and more broadly highlights the utility of non-enzymatic diversification for exploring and expanding natural product chemical space.
The biosynthesis of pyridine rings is still poorly understood. Here the authors propose a biosynthetic pathway for pyridine-containing rubrolones, which is characterized by a non-enzymatic condensation and cyclization of the pyridine moiety.
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Affiliation(s)
- Yijun Yan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Jing Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Zhiyin Yu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Mingming Yu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Ya-Tuan Ma
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Li Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Can Su
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Jianying Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Geoffrey P Horsman
- Department of Chemistry &Biochemistry, Wilfrid Laurier University, Waterloo, Ontario, Canada N2L 3C5
| | - Sheng-Xiong Huang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
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34
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Diels–Alder reactions of an elusive 1,3-butadiene bearing 2-carboxy and 4-alkoxy substituents. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.08.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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35
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36
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Patel A, Chen Z, Yang Z, Gutiérrez O, Liu HW, Houk KN, Singleton DA. Dynamically Complex [6+4] and [4+2] Cycloadditions in the Biosynthesis of Spinosyn A. J Am Chem Soc 2016; 138:3631-4. [PMID: 26909570 PMCID: PMC5367884 DOI: 10.1021/jacs.6b00017] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
SpnF, an enzyme involved in the biosynthesis of spinosyn A, catalyzes a transannular Diels-Alder reaction. Quantum mechanical computations and dynamic simulations now show that this cycloaddition is not well described as either a concerted or stepwise process, and dynamical effects influence the identity and timing of bond formation. The transition state for the reaction is ambimodal and leads directly to both the observed Diels-Alder and an unobserved [6+4] cycloadduct. The potential energy surface bifurcates and the cycloadditions occur by dynamically stepwise modes featuring an "entropic intermediate". A rapid Cope rearrangement converts the [6+4] adduct into the observed [4+2] adduct. Control of nonstatistical dynamical effects may serve as another way by which enzymes control reactions.
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Affiliation(s)
- Ashay Patel
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Zhuo Chen
- Department of Chemistry, Texas A & M University, College Station, Texas 77843-3255, United States
| | - Zhongyue Yang
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Osvaldo Gutiérrez
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Hung-wen Liu
- College of Pharmacy and Department of Chemistry, University of Texas at Austin, Austin, Texas 78712-1224, United States
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Daniel A. Singleton
- Department of Chemistry, Texas A & M University, College Station, Texas 77843-3255, United States
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37
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Beniddir MA, Evanno L, Joseph D, Skiredj A, Poupon E. Emergence of diversity and stereochemical outcomes in the biosynthetic pathways of cyclobutane-centered marine alkaloid dimers. Nat Prod Rep 2016; 33:820-42. [DOI: 10.1039/c5np00159e] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A deep-sea dive into the ecology and chemistry of surprising cyclobutanes from marine invertebrates.
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Affiliation(s)
| | - Laurent Evanno
- BioCIS
- Univ. Paris-Sud
- CNRS
- Université Paris-Saclay
- Châtenay-Malabry
| | - Delphine Joseph
- BioCIS
- Univ. Paris-Sud
- CNRS
- Université Paris-Saclay
- Châtenay-Malabry
| | - Adam Skiredj
- BioCIS
- Univ. Paris-Sud
- CNRS
- Université Paris-Saclay
- Châtenay-Malabry
| | - Erwan Poupon
- BioCIS
- Univ. Paris-Sud
- CNRS
- Université Paris-Saclay
- Châtenay-Malabry
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38
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Takao KI, Noguchi S, Sakamoto S, Kimura M, Yoshida K, Tadano KI. Total Synthesis of (+)-Cytosporolide A via a Biomimetic Hetero-Diels–Alder Reaction. J Am Chem Soc 2015; 137:15971-7. [DOI: 10.1021/jacs.5b11438] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ken-ichi Takao
- Department of Applied Chemistry, Keio University, Hiyoshi,
Kohoku-ku, Yokohama 223-8522, Japan
| | - Shuji Noguchi
- Department of Applied Chemistry, Keio University, Hiyoshi,
Kohoku-ku, Yokohama 223-8522, Japan
| | - Shu Sakamoto
- Department of Applied Chemistry, Keio University, Hiyoshi,
Kohoku-ku, Yokohama 223-8522, Japan
| | - Mizuki Kimura
- Department of Applied Chemistry, Keio University, Hiyoshi,
Kohoku-ku, Yokohama 223-8522, Japan
| | - Keisuke Yoshida
- Department of Applied Chemistry, Keio University, Hiyoshi,
Kohoku-ku, Yokohama 223-8522, Japan
| | - Kin-ichi Tadano
- Department of Applied Chemistry, Keio University, Hiyoshi,
Kohoku-ku, Yokohama 223-8522, Japan
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39
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Yu P, Patel A, Houk KN. Transannular [6 + 4] and Ambimodal Cycloaddition in the Biosynthesis of Heronamide A. J Am Chem Soc 2015; 137:13518-23. [DOI: 10.1021/jacs.5b06656] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Peiyuan Yu
- Department of Chemistry and Biochemistry, ‡Department of Chemical
and Biomolecular
Engineering, University of California, Los Angeles, California 90095, United States
| | - Ashay Patel
- Department of Chemistry and Biochemistry, ‡Department of Chemical
and Biomolecular
Engineering, University of California, Los Angeles, California 90095, United States
| | - K. N. Houk
- Department of Chemistry and Biochemistry, ‡Department of Chemical
and Biomolecular
Engineering, University of California, Los Angeles, California 90095, United States
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40
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Larson RT, Pemberton RP, Franke JM, Tantillo DJ, Thomson RJ. Total Synthesis of the Galbulimima Alkaloids Himandravine and GB17 Using Biomimetic Diels-Alder Reactions of Double Diene Precursors. J Am Chem Soc 2015; 137:11197-204. [PMID: 26305231 PMCID: PMC4612511 DOI: 10.1021/jacs.5b07710] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The enantioselective total syntheses of himandravine and GB17 were completed through a common biomimetic strategy involving Diels-Alder reactions of unusual double diene containing linear precursors. The double diene precursors, containing or lacking a C12 substituent as required to produce GB17 or himandravine, respectively, were found to undergo Diels-Alder reactions to afford mixtures of regioisomeric cycloadducts that map onto the alternative carbocyclic frameworks of both himandravine and GB17. Computational investigations revealed that these Diels-Alder reactions proceed via transition state structures of similar energy that have a high degree of bispericyclic character and that the low levels of regioselectivity observed in the reactions are a consequence of competing orbital interaction and distortion energies. The combined experimental and computational results provide valuable insights into the biosynthesis of the Galbulimima alkaloids.
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Affiliation(s)
- Reed T. Larson
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Ryan P. Pemberton
- Department of Chemistry, University of California—Davis, 1 Shields Avenue, Davis, California 95616, United States
| | - Jenna M. Franke
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Dean J. Tantillo
- Department of Chemistry, University of California—Davis, 1 Shields Avenue, Davis, California 95616, United States
| | - Regan J. Thomson
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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