1
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Hussein BA, Maturi W, Rylands MK, Bismillah AN, Wen Y, Aguilar JA, Ayub R, Rankine CD, McGonigal PR. Correlated shapeshifting and configurational isomerization. Chem Sci 2024:d4sc03699a. [PMID: 39239481 PMCID: PMC11370815 DOI: 10.1039/d4sc03699a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Accepted: 08/23/2024] [Indexed: 09/07/2024] Open
Abstract
Herein we demonstrate that the rapid 'shapeshifting' constitutional isomerization of a substituted bullvalene is influenced by the E-to-Z configurational isomerization of a remote carbamate group, giving rise to correlated motion. We find that, while the E-configurational isomer of a bulky carbamate favors the β-bullvalene constitutional isomer, a noncovalent bonding interaction within the Z-carbamate tips the equilibrium toward the γ-bullvalene form. Using DFT modelling and NMR spectroscopy, this long-range interaction is identified as being between the bullvalene core and a pendant phenyl group connected to the carbamate. Coupling the constitutional changes of a bullvalene to a reciprocal configurational isomerization through a long-range interaction in this way will allow shapeshifting rearrangements to be exploited as part of collective motion in extended structures.
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Affiliation(s)
- Burhan A Hussein
- Department of Chemistry, Durham University, Lower Mountjoy Stockton Road Durham DH1 3LE UK
| | - William Maturi
- Department of Chemistry, Durham University, Lower Mountjoy Stockton Road Durham DH1 3LE UK
- Department of Chemistry, University of York Heslington York YO10 5DD UK
| | - Mary Kate Rylands
- Department of Chemistry, Durham University, Lower Mountjoy Stockton Road Durham DH1 3LE UK
| | - Aisha N Bismillah
- Department of Chemistry, Durham University, Lower Mountjoy Stockton Road Durham DH1 3LE UK
- Department of Chemistry, University of York Heslington York YO10 5DD UK
| | - Yuzhen Wen
- Department of Chemistry, Durham University, Lower Mountjoy Stockton Road Durham DH1 3LE UK
- Department of Chemistry, University of York Heslington York YO10 5DD UK
| | - Juan A Aguilar
- Department of Chemistry, Durham University, Lower Mountjoy Stockton Road Durham DH1 3LE UK
| | - Rabia Ayub
- Department of Chemistry, University of York Heslington York YO10 5DD UK
| | - Conor D Rankine
- Department of Chemistry, University of York Heslington York YO10 5DD UK
| | - Paul R McGonigal
- Department of Chemistry, Durham University, Lower Mountjoy Stockton Road Durham DH1 3LE UK
- Department of Chemistry, University of York Heslington York YO10 5DD UK
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2
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Sanchez A, Gonzalez VM, Sakamoto J, Gurajapu A, Maimone TJ. Modular, Enantioselective Entry into Polysubstituted Shapeshifting Molecules. J Am Chem Soc 2024; 146:17573-17579. [PMID: 38901002 DOI: 10.1021/jacs.4c03323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
Dynamic, shapeshifting hydrocarbons have emerged as enabling frameworks across drug discovery, materials science, and catalysis. Their employment, however, is often hampered by a lack of efficient synthetic methods for their preparation. Herein, we report a unified, concise, and modular synthesis of enantioenriched shapeshifting hydrocarbons (barbaralones and bullvalones) and multisubstituted bullvalenes, leveraging mild photochemical and base-induced rearrangements.
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Affiliation(s)
- Andre Sanchez
- Department of Chemistry, University of California-Berkeley, 826 Latimer Hall, Berkeley, California, 94720, United States
| | - Vanessa M Gonzalez
- Department of Chemistry, University of California-Berkeley, 826 Latimer Hall, Berkeley, California, 94720, United States
| | - Jukiya Sakamoto
- Department of Chemistry, University of California-Berkeley, 826 Latimer Hall, Berkeley, California, 94720, United States
| | - Anjali Gurajapu
- Department of Chemistry, University of California-Berkeley, 826 Latimer Hall, Berkeley, California, 94720, United States
| | - Thomas J Maimone
- Department of Chemistry, University of California-Berkeley, 826 Latimer Hall, Berkeley, California, 94720, United States
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3
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Dohmen C, Paululat T, Ihmels H. Reversible Restrain and Release of the Dynamic Valence Isomerization in a Shape-shifting Bullvalene by Complex Formation. Chemistry 2024; 30:e202304311. [PMID: 38275100 DOI: 10.1002/chem.202304311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 01/27/2024]
Abstract
In search for structural features that enable the control of the valence isomerization of the fluxional bullvalene, a bullvalene-bis(harmane) conjugate is identified that acts as chelating ligand in complexes with metal ions. Spectrometric titrations show that this ligand forms 1 : 1 complexes with Ag+, Cu+, Cu2+, and Zn2+. Most importantly, detailed NMR-spectroscopic analysis at different temperatures reveals that the complexation with Ag+ strongly affects the dynamic isomerization of the bullvalene unit of the ligand such that only one predominant valence isomer is formed, even at 5 °C. Detailed 1H-NMR-spectroscopic studies disclose an increased barrier (~11 kJ mol-1) of the Cope rearrangement. Furthermore, the addition of hexacyclene displaces the Ag+ from the complex, so that the valence isomerization is accelerated and an equilibrium with two predominant isomers is formed. In turn, repeated addition of Ag+ regains the complex with the restrained isomerization of the bullvalene unit. This method to control the valence isomerism by straightforward chemical stimuli may be used to simplify structural analysis at elevated temperatures, i. e. a feature not available so far with bullvalenes, and it may be employed as functional element in dynamic supramolecular assemblies.
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Affiliation(s)
- Christoph Dohmen
- Department of Chemistry-Biology, and Center of Micro-and Nanochemistry and (Bio)Technology (Cμ), University of Siegen, Adolf-Reichwein-Str. 2, 57068, Siegen, Germany
| | - Thomas Paululat
- Department of Chemistry-Biology, and Center of Micro-and Nanochemistry and (Bio)Technology (Cμ), University of Siegen, Adolf-Reichwein-Str. 2, 57068, Siegen, Germany
| | - Heiko Ihmels
- Department of Chemistry-Biology, and Center of Micro-and Nanochemistry and (Bio)Technology (Cμ), University of Siegen, Adolf-Reichwein-Str. 2, 57068, Siegen, Germany
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4
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Laconsay CJ, Tantillo DJ. Modulating Escape Channels of Cycloheptatrienyl Rhodium Carbenes To Form Semibullvalene. J Org Chem 2023. [PMID: 37335974 DOI: 10.1021/acs.joc.3c00735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
We describe the various escape channels available to dirhodium carbene intermediates from cycloheptatrienyl diazo compounds located with density functional theory. An intramolecular cyclopropanation would, in principle, provide a new route to semibullvalenes (SBVs). A detailed exploration of the potential energy surface reveals that methylating carbon-7 suppresses a competing β-hydride migration pathway to heptafulvene products, giving SBV formation a reasonable chance. During our explorations, we additionally discovered unusual spirononatriene, spironorcaradiene, and metal-stabilized 9-barbaralyl cation structures as local minima.
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Affiliation(s)
- Croix J Laconsay
- Department of Chemistry, University of California─Davis, Davis, California 95616, United States
| | - Dean J Tantillo
- Department of Chemistry, University of California─Davis, Davis, California 95616, United States
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5
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Sanz‐Novo M, Mato M, León Í, Echavarren AM, Alonso JL. Shape‐Shifting Molecules: Unveiling the Valence Tautomerism Phenomena in Bare Barbaralones. Angew Chem Int Ed Engl 2022; 61:e202117045. [PMID: 35165988 PMCID: PMC9311078 DOI: 10.1002/anie.202117045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Indexed: 12/28/2022]
Abstract
We report a state‐of‐the‐art spectroscopic study of an archetypical barbaralone, conclusively revealing the valence tautomerism phenomena for this bistable molecular system. The two distinct 1‐ and 5‐substituted valence tautomers have been isolated in a supersonic expansion for the first time and successfully characterized by high‐resolution rotational spectroscopy. This work provides irrefutable experimental evidence of the [3,3]‐rearrangement in barbaralones and highlights the use of rotational spectroscopy to analyze shape‐shifting mixtures. Moreover, this observation opens the window toward the characterization of new fluxional systems in the isolation conditions of the gas phase and should serve as a reference point in the general understanding of valence tautomerism.
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Affiliation(s)
- Miguel Sanz‐Novo
- Grupo de Espectroscopía Molecular (GEM) Edificio Quifima Área de Química-Física Laboratorios de Espectroscopía y Bioespectroscopía Parque Científico UVa Unidad Asociada CSIC Universidad de Valladolid 47011 Valladolid Spain
| | - Mauro Mato
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili C/Marcel⋅li Domingo s/n 43007 Tarragona Spain
| | - Íker León
- Grupo de Espectroscopía Molecular (GEM) Edificio Quifima Área de Química-Física Laboratorios de Espectroscopía y Bioespectroscopía Parque Científico UVa Unidad Asociada CSIC Universidad de Valladolid 47011 Valladolid Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili C/Marcel⋅li Domingo s/n 43007 Tarragona Spain
| | - José L. Alonso
- Grupo de Espectroscopía Molecular (GEM) Edificio Quifima Área de Química-Física Laboratorios de Espectroscopía y Bioespectroscopía Parque Científico UVa Unidad Asociada CSIC Universidad de Valladolid 47011 Valladolid Spain
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6
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Sanz‐Novo M, Mato M, León Í, Echavarren AM, Alonso JL. Shape‐Shifting Molecules: Unveiling the Valence Tautomerism Phenomena in Bare Barbaralones. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117045] [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)
- Miguel Sanz‐Novo
- Grupo de Espectroscopía Molecular (GEM) Edificio Quifima Área de Química-Física Laboratorios de Espectroscopía y Bioespectroscopía Parque Científico UVa Unidad Asociada CSIC Universidad de Valladolid 47011 Valladolid Spain
| | - Mauro Mato
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili C/Marcel⋅li Domingo s/n 43007 Tarragona Spain
| | - Íker León
- Grupo de Espectroscopía Molecular (GEM) Edificio Quifima Área de Química-Física Laboratorios de Espectroscopía y Bioespectroscopía Parque Científico UVa Unidad Asociada CSIC Universidad de Valladolid 47011 Valladolid Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili C/Marcel⋅li Domingo s/n 43007 Tarragona Spain
| | - José L. Alonso
- Grupo de Espectroscopía Molecular (GEM) Edificio Quifima Área de Química-Física Laboratorios de Espectroscopía y Bioespectroscopía Parque Científico UVa Unidad Asociada CSIC Universidad de Valladolid 47011 Valladolid Spain
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7
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Birvé AP, Patel HD, Price JR, Bloch WM, Fallon T. Guest-Dependent Isomer Convergence of a Permanently Fluxional Coordination Cage. Angew Chem Int Ed Engl 2022; 61:e202115468. [PMID: 34854191 PMCID: PMC9303423 DOI: 10.1002/anie.202115468] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Indexed: 11/09/2022]
Abstract
A fluxional bis-monodentate ligand, based on the archetypal shape-shifting molecule bullvalene, self-assembles with M2+ (M=Pd2+ or Pt2+ ) to produce a highly complex ensemble of permanently fluxional coordination cages. Metal-mediated self-assembly selects for an M2 L4 architecture while maintaining shape-shifting ligand complexity. A second level of simplification is achieved with guest-exchange; the binding of halides within the M2 L4 cage mixture results in a convergence to a cage species with all four ligands present as the "B isomer". Within this confine, the reaction graph of the bullvalene is greatly restricted, but gives rise to a mixture of 38 possible diastereoisomers in rapid exchange. X-ray crystallography reveals a preference for an achiral form consisting of both ligand enantiomers. Through a combination of NMR spectroscopy and DFT calculations, we elucidate the restricted isomerisation pathway of the permanently fluxional M2 L4 assembly.
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Affiliation(s)
- André P. Birvé
- Department of ChemistryUniversity of AdelaideAdelaide5005Australia
| | - Harshal D. Patel
- Department of ChemistryUniversity of AdelaideAdelaide5005Australia
| | - Jason R. Price
- ANSTOAustralian Synchrotron800 Blackburn RoadClaytonVic 3168Australia
| | - Witold M. Bloch
- Department of ChemistryUniversity of AdelaideAdelaide5005Australia
| | - Thomas Fallon
- Department of ChemistryUniversity of AdelaideAdelaide5005Australia
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8
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Birvé AP, Patel HD, Price JR, Bloch WM, Fallon T. Guest‐Dependent Isomer Convergence of a Permanently Fluxional Coordination Cage. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115468] [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)
- André P. Birvé
- Department of Chemistry University of Adelaide Adelaide 5005 Australia
| | - Harshal D. Patel
- Department of Chemistry University of Adelaide Adelaide 5005 Australia
| | - Jason R. Price
- ANSTO Australian Synchrotron 800 Blackburn Road Clayton Vic 3168 Australia
| | - Witold M. Bloch
- Department of Chemistry University of Adelaide Adelaide 5005 Australia
| | - Thomas Fallon
- Department of Chemistry University of Adelaide Adelaide 5005 Australia
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9
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Patel HD, Gaggl S, Pašteka LF, Fallon T. Ambimodal Pericyclic Rearrangements of Dialkenyl-Bullvalenes Give Tetrahydro-1,8-ethenoheptalenes. Org Lett 2021; 24:319-323. [PMID: 34898219 DOI: 10.1021/acs.orglett.1c03984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The fluxional structure of bullvalene is expanded by the discovery of a [5,5]-sigmatropic rearrangement of dialkenyl substituted derivatives. This gives rise to tetrahydro-1,8-ethenoheptalenes (THEH), representing the first examples of this tricyclic scaffold. Variation of the substitution pattern alters the product distribution, including one thermodynamically balanced between THEH and bullvalene isomers. DFT calculations are used to explore the thermodynamic landscape and reaction mechanism revealing a pretransition state bifurcation leading to a concerted ambimodal rearrangement pathway.
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Affiliation(s)
- Harshal D Patel
- Department of Chemistry, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Sebastian Gaggl
- Department of Chemistry, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Lukáš F Pašteka
- Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovičova 6, 842 15 Bratislava, Slovakia
| | - Thomas Fallon
- Department of Chemistry, The University of Adelaide, Adelaide, SA 5005, Australia
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10
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Yahiaoui O, Patel HD, Chinner KS, Pašteka LF, Fallon T. Stereomutation of Substituted Bullvalenes. Org Lett 2021; 23:1157-1162. [PMID: 33146538 DOI: 10.1021/acs.orglett.0c03470] [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
The stereomutation of substituted bullvalenes is an inevitable consequence of the valence isomerism that automerizes this unique fluxional hydrocarbon. The introduction of external stereogenicity in the substituents expands the reaction graphs and leads to a wealth of complex diastereochemical relationships. In this communication, we explore these possibilities and prepare a range of stereochemically rich substituted bullvalenes. This includes a series of disubstituted bullvalenes with two external stereocenters as a platform for fluxional, shape-diverse compound libraries. We also prepare a tethered bisbullvalene with central stereogenicity in the tether as an ensemble of 900 unique isomers that are completely stereomutable.
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Affiliation(s)
- Oussama Yahiaoui
- Department of Chemistry, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Harshal D Patel
- Department of Chemistry, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Kylie S Chinner
- Department of Chemistry, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Lukáš F Pašteka
- Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University, 81806 Bratislava, Slovakia
| | - Thomas Fallon
- Department of Chemistry, The University of Adelaide, Adelaide, SA 5005, Australia
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11
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12
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Patel HD, Tran TH, Sumby CJ, Pašteka LF, Fallon T. Boronate Ester Bullvalenes. J Am Chem Soc 2020; 142:3680-3685. [DOI: 10.1021/jacs.9b12930] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Harshal D. Patel
- Department of Chemistry, The University of Adelaide, Adelaide 5005, SA, Australia
| | - Thanh-Huyen Tran
- Department of Chemistry, The University of Adelaide, Adelaide 5005, SA, Australia
| | - Christopher J. Sumby
- Department of Chemistry, The University of Adelaide, Adelaide 5005, SA, Australia
| | - Lukáš F. Pašteka
- Department of Physical and Theoretical Chemistry and Laboratory for Advanced Materials, Faculty of Natural Sciences, Comenius University, Ilkovičova 6, Bratislava, Slovakia
| | - Thomas Fallon
- Department of Chemistry, The University of Adelaide, Adelaide 5005, SA, Australia
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13
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Bismillah AN, Chapin BM, Hussein BA, McGonigal PR. Shapeshifting molecules: the story so far and the shape of things to come. Chem Sci 2020; 11:324-332. [PMID: 32206269 PMCID: PMC7069523 DOI: 10.1039/c9sc05482k] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 12/04/2019] [Indexed: 12/26/2022] Open
Abstract
Shapeshifting molecules exhibit rapid constitutional dynamics while remaining stable, isolable molecules, making them promising artificial scaffolds from which to explore complex biological systems and create new functional materials. However, their structural complexity presents challenges for designing their syntheses and understanding their equilibria. This minireview showcases (1) recent applications of highly dynamic shapeshifting molecules in sensing and distinguishing complex small molecules and (2) detailed insights into the adaptation of tractable bistable systems to changes in their local environment. The current status of this field is summarised and its future prospects are discussed.
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Affiliation(s)
- Aisha N Bismillah
- Department of Chemistry , Durham University , Lower Mountjoy, Stockton Road , Durham , DH1 3LE , UK .
| | - Brette M Chapin
- Department of Chemistry , Durham University , Lower Mountjoy, Stockton Road , Durham , DH1 3LE , UK .
| | - Burhan A Hussein
- Department of Chemistry , Durham University , Lower Mountjoy, Stockton Road , Durham , DH1 3LE , UK .
| | - Paul R McGonigal
- Department of Chemistry , Durham University , Lower Mountjoy, Stockton Road , Durham , DH1 3LE , UK .
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14
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Yahiaoui O, Pašteka LF, Blake CJ, Newton CG, Fallon T. Network Analysis of Substituted Bullvalenes. Org Lett 2019; 21:9574-9578. [PMID: 31746207 DOI: 10.1021/acs.orglett.9b03737] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Substituted bullvalenes are dynamic shape-shifting molecules that exist within complex reaction networks. Herein, we report the synthesis of di- and trisubstituted bullvalenes and investigate their dynamic properties. Trisubstituted bullvalenes share a common major isomer which shows kinetic metastability. A survey of the thermodynamic and kinetic landscapes through computational analysis together with kinetic simulation provides a map of the internal dynamics of these systems.
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Affiliation(s)
- Oussama Yahiaoui
- Department of Chemistry , The University of Adelaide , Adelaide , SA 5005 , Australia.,Institute of Natural and Mathematical Sciences , Massey University , Auckland 0632 , New Zealand
| | - Lukáš F Pašteka
- Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences , Comenius University , Bratislava , Slovakia
| | - Christopher J Blake
- Research School of Chemistry , Australian National University , Canberra , ACT 0200 , Australia
| | - Christopher G Newton
- Department of Chemistry , The University of Adelaide , Adelaide , SA 5005 , Australia
| | - Thomas Fallon
- Department of Chemistry , The University of Adelaide , Adelaide , SA 5005 , Australia.,Institute of Natural and Mathematical Sciences , Massey University , Auckland 0632 , New Zealand
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15
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Wang X, Shyshov O, Hanževački M, Jäger CM, von Delius M. Ammonium Complexes of Orthoester Cryptands Are Inherently Dynamic and Adaptive. J Am Chem Soc 2019; 141:8868-8876. [DOI: 10.1021/jacs.9b01350] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Xiang Wang
- Institute of Organic Chemistry and Advanced Materials, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Oleksandr Shyshov
- Institute of Organic Chemistry and Advanced Materials, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Marko Hanževački
- Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
- Rudjer Boskovic Institute, Bijenicka 54, 10000 Zagreb, Croatia
| | - Christof M. Jäger
- Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Max von Delius
- Institute of Organic Chemistry and Advanced Materials, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
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16
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Locke GM, Bernhard SSR, Senge MO. Nonconjugated Hydrocarbons as Rigid-Linear Motifs: Isosteres for Material Sciences and Bioorganic and Medicinal Chemistry. Chemistry 2019; 25:4590-4647. [PMID: 30387906 DOI: 10.1002/chem.201804225] [Citation(s) in RCA: 122] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 10/20/2018] [Indexed: 01/02/2023]
Abstract
Nonconjugated hydrocarbons, like bicyclo[1.1.1]pentane, bicyclo[2.2.2]octane, triptycene, and cubane are a unique class of rigid linkers. Due to their similarity in size and shape they are useful mimics of classic benzene moieties in drugs, so-called bioisosteres. Moreover, they also fulfill an important role in material sciences as linear linkers, in order to arrange various functionalities in a defined spatial manner. In this Review article, recent developments and usages of these special, rectilinear systems are discussed. Furthermore, we focus on covalently linked, nonconjugated linear arrangements and discuss the physical and chemical properties and differences of individual linkers, as well as their application in material and medicinal sciences.
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Affiliation(s)
- Gemma M Locke
- School of Chemistry, SFI Tetrapyrrole Laboratory, Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse Street, Dublin, 2, Ireland
| | - Stefan S R Bernhard
- School of Chemistry, SFI Tetrapyrrole Laboratory, Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse Street, Dublin, 2, Ireland
| | - Mathias O Senge
- School of Chemistry, SFI Tetrapyrrole Laboratory, Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse Street, Dublin, 2, Ireland
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17
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Bismillah AN, Sturala J, Chapin BM, Yufit DS, Hodgkinson P, McGonigal PR. Shape-selective crystallisation of fluxional carbon cages. Chem Sci 2018; 9:8631-8636. [PMID: 30647882 PMCID: PMC6301275 DOI: 10.1039/c8sc04303e] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 10/19/2018] [Indexed: 12/25/2022] Open
Abstract
Dynamic covalent rearrangements of fluxional carbon cages, such as bullvalenes and barbaralanes, impart 'shapeshifting' molecular properties. Here, a series of five barbaralanes each interconvert dynamically between two constitutional isomers in solution, but resolve to single isomers upon crystallisation. Unexpectedly, the minor solution-phase isomers are resolved in two instances. Through dynamic NMR, crystallographic and DFT analyses, we show that the isomer observed in the solid state is not a direct consequence of the equilibrium distribution in solution or any specific noncovalent interactions. Rather, the dynamic preferential crystallisation is dictated by differences in molecular size and shape.
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Affiliation(s)
- Aisha N Bismillah
- Department of Chemistry , Durham University , Lower Mountjoy , Stockton Road , Durham , DH13LE , UK .
| | - Jiri Sturala
- Department of Chemistry , Durham University , Lower Mountjoy , Stockton Road , Durham , DH13LE , UK .
| | - Brette M Chapin
- Department of Chemistry , Durham University , Lower Mountjoy , Stockton Road , Durham , DH13LE , UK .
| | - Dmitry S Yufit
- Department of Chemistry , Durham University , Lower Mountjoy , Stockton Road , Durham , DH13LE , UK .
| | - Paul Hodgkinson
- Department of Chemistry , Durham University , Lower Mountjoy , Stockton Road , Durham , DH13LE , UK .
| | - Paul R McGonigal
- Department of Chemistry , Durham University , Lower Mountjoy , Stockton Road , Durham , DH13LE , UK .
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18
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Das M, Yang T, Dong J, Prasetya F, Xie Y, Wong KHQ, Cheong A, Woon ECY. Multiprotein Dynamic Combinatorial Chemistry: A Strategy for the Simultaneous Discovery of Subfamily-Selective Inhibitors for Nucleic Acid Demethylases FTO and ALKBH3. Chem Asian J 2018; 13:2854-2867. [PMID: 29917331 DOI: 10.1002/asia.201800729] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 06/12/2018] [Indexed: 12/18/2022]
Abstract
Dynamic combinatorial chemistry (DCC) is a powerful supramolecular approach for discovering ligands for biomolecules. To date, most, if not all, biologically templated DCC systems employ only a single biomolecule to direct the self-assembly process. To expand the scope of DCC, herein, a novel multiprotein DCC strategy has been developed that combines the discriminatory power of a zwitterionic "thermal tag" with the sensitivity of differential scanning fluorimetry. This strategy is highly sensitive and could differentiate the binding of ligands to structurally similar subfamily members. Through this strategy, it was possible to simultaneously identify subfamily-selective probes against two clinically important epigenetic enzymes: FTO (7; IC50 =2.6 μm) and ALKBH3 (8; IC50 =3.7 μm). To date, this is the first report of a subfamily-selective ALKBH3 inhibitor. The developed strategy could, in principle, be adapted to a broad range of proteins; thus it is of broad scientific interest.
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MESH Headings
- AlkB Homolog 3, Alpha-Ketoglutarate-Dependent Dioxygenase/antagonists & inhibitors
- AlkB Homolog 3, Alpha-Ketoglutarate-Dependent Dioxygenase/chemistry
- AlkB Homolog 3, Alpha-Ketoglutarate-Dependent Dioxygenase/genetics
- AlkB Homolog 5, RNA Demethylase/antagonists & inhibitors
- AlkB Homolog 5, RNA Demethylase/chemistry
- AlkB Homolog 5, RNA Demethylase/genetics
- Alpha-Ketoglutarate-Dependent Dioxygenase FTO/antagonists & inhibitors
- Alpha-Ketoglutarate-Dependent Dioxygenase FTO/chemistry
- Alpha-Ketoglutarate-Dependent Dioxygenase FTO/genetics
- Catalysis
- Combinatorial Chemistry Techniques/methods
- Enzyme Inhibitors/chemistry
- Fluorometry/methods
- Humans
- Hydrazones/chemistry
- Kinetics
- Ligands
- Molecular Structure
- Oxidoreductases, O-Demethylating/antagonists & inhibitors
- Oxidoreductases, O-Demethylating/chemistry
- Oxidoreductases, O-Demethylating/genetics
- Peptides/chemistry
- Peptides/genetics
- Protein Denaturation
- Protein Engineering
- Protein Structure, Secondary
- Recombinant Fusion Proteins/chemistry
- Recombinant Fusion Proteins/genetics
- Transition Temperature
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Affiliation(s)
- Mohua Das
- Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore, 117543, Singapore
| | - Tianming Yang
- Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore, 117543, Singapore
| | - Jinghua Dong
- Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore, 117543, Singapore
| | - Fransisca Prasetya
- Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore, 117543, Singapore
| | - Yiming Xie
- Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore, 117543, Singapore
| | - Kendra H Q Wong
- Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore, 117543, Singapore
| | - Adeline Cheong
- Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore, 117543, Singapore
| | - Esther C Y Woon
- Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore, 117543, Singapore
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19
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Affiliation(s)
- Zhenchuang Xu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Chao Liu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Shujuan Zhao
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Si Chen
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Yanchuan Zhao
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
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20
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Yahiaoui O, Pašteka LF, Judeel B, Fallon T. Synthesis and Analysis of Substituted Bullvalenes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712157] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Oussama Yahiaoui
- Institute of Natural and Mathematical Sciences; Massey University; 1/5 University Avenue Albany Auckland 0632 New Zealand
| | - Lukáš F. Pašteka
- Centre for Theoretical Chemistry and Physics, NZIAS; Massey University; Oaklands Road Albany Auckland 0632 New Zealand
- Department of Physical and Theoretical Chemistry; Faculty of Natural Sciences; Comenius University; Ilkovičova 6 Bratislava Slovakia
- Centre for Advanced Study; Norwegian Academy of Science and Letters; Drammensveien 78 NO-0271 Oslo Norway
| | - Bernadette Judeel
- Institute of Natural and Mathematical Sciences; Massey University; 1/5 University Avenue Albany Auckland 0632 New Zealand
| | - Thomas Fallon
- Institute of Natural and Mathematical Sciences; Massey University; 1/5 University Avenue Albany Auckland 0632 New Zealand
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21
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Yahiaoui O, Pašteka LF, Judeel B, Fallon T. Synthesis and Analysis of Substituted Bullvalenes. Angew Chem Int Ed Engl 2018; 57:2570-2574. [PMID: 29314602 DOI: 10.1002/anie.201712157] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Indexed: 01/01/2023]
Abstract
Herein we detail a practical synthesis of bullvalene and a variety of mono- and disubstituted analogues through cobalt-catalysed [6+2] cycloaddition of cyclooctatetraene to alkynes, followed by photochemical di-π-methane rearrangement. The application of isomer-network analysis, coupled with quantum-chemical calculations, provides a powerful automated tool for predicting the properties of bullvalene isomer networks.
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Affiliation(s)
- Oussama Yahiaoui
- Institute of Natural and Mathematical Sciences, Massey University, 1/5 University Avenue, Albany, Auckland, 0632, New Zealand
| | - Lukáš F Pašteka
- Centre for Theoretical Chemistry and Physics, NZIAS, Massey University, Oaklands Road, Albany, Auckland, 0632, New Zealand.,Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovičova 6, Bratislava, Slovakia.,Centre for Advanced Study, Norwegian Academy of Science and Letters, Drammensveien 78, NO-0271, Oslo, Norway
| | - Bernadette Judeel
- Institute of Natural and Mathematical Sciences, Massey University, 1/5 University Avenue, Albany, Auckland, 0632, New Zealand
| | - Thomas Fallon
- Institute of Natural and Mathematical Sciences, Massey University, 1/5 University Avenue, Albany, Auckland, 0632, New Zealand
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22
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Ismael AK, Al-Jobory A, Grace I, Lambert CJ. Discriminating single-molecule sensing by crown-ether-based molecular junctions. J Chem Phys 2017; 146:064704. [PMID: 28201900 DOI: 10.1063/1.4975771] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Crown-ether molecules are well known to selectively bind alkali atoms, so by incorporating these within wires, any change in electrical conductance of the wire upon binding leads to discriminating sensing. Using a density functional theory-based approach to quantum transport, we investigate the potential sensing capabilities of single-molecule junctions formed from crown ethers attached to anthraquinone units, which are in turn attached to gold electrodes via alkyl chains. We calculate the change in electrical conductance for binding of three different alkali ions (lithium, sodium, and potassium). Depending on the nature of the ionic analyte, the conductance is enhanced by different amounts. This change in electrical conductance is due to charge transfer from the ion to molecular wire causing the molecular resonances to shift closer to the electrode Fermi energy.
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Affiliation(s)
- Ali K Ismael
- Department of Physics, Lancaster University, Lancaster, United Kingdom
| | - Alaa Al-Jobory
- Department of Physics, Lancaster University, Lancaster, United Kingdom
| | - Iain Grace
- Department of Physics, Lancaster University, Lancaster, United Kingdom
| | - Colin J Lambert
- Department of Physics, Lancaster University, Lancaster, United Kingdom
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23
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Ferrer S, Echavarren AM. Synthesis of Barbaralones and Bullvalenes Made Easy by Gold Catalysis. Angew Chem Int Ed Engl 2016; 55:11178-82. [PMID: 27538835 PMCID: PMC5132030 DOI: 10.1002/anie.201606101] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Indexed: 01/22/2023]
Abstract
The gold(I)-catalyzed oxidative cyclization of 7-ethynyl-1,3,5-cycloheptatrienes gives 1-substituted barbaralones in a general manner, which simplifies the access to other fluxional molecules. As an example, we report the shortest syntheses of bullvalene, phenylbullvalene, and disubstituted bullvalenes, and a readily accessible route to complex cage-type structures by further gold(I)-catalyzed reactions.
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Affiliation(s)
- Sofia Ferrer
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/ Marcel⋅li Domingo s/n, 43007, Tarragona, Spain.
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24
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Ferrer S, Echavarren AM. Synthesis of Barbaralones and Bullvalenes Made Easy by Gold Catalysis. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606101] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Sofia Ferrer
- Institute of Chemical Research of Catalonia (ICIQ); Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ); Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica; Universitat Rovira i Virgili; C/ Marcel⋅li Domingo s/n 43007 Tarragona Spain
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25
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Rout B. A Miniaturized Therapeutic Chromophore for Multiple Metal Pollutant Sensing, Pathological Metal Diagnosis and Logical Computing. Sci Rep 2016; 6:27115. [PMID: 27271817 PMCID: PMC4895214 DOI: 10.1038/srep27115] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 05/03/2016] [Indexed: 12/23/2022] Open
Abstract
The efficacy of a miniaturized unimolecular analytic system is illustrated. The easily accessible therapeutic chromophore "temoporfin", which responds differentially to bound metals at multiple wavelengths of Q-band absorption using chemometric analysis, expeditiously detects and discriminates a wide range of metals regarded as priority pollutants in water and hence may also be used for diagnosis of medically relevant metals in human urine. The molecule was further investigated as an electronic logic device, e.g. keypad lock device, to authorize multiple highly secure chemical passwords for information protection.
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Affiliation(s)
- Bhimsen Rout
- Organic Chemistry Division, Institute of Chemical and Engineering Sciences, A*STAR, 138665-Singapore
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26
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Qin T, Iwata T, Ransom TT, Beutler JA, Porco JA. Syntheses of Dimeric Tetrahydroxanthones with Varied Linkages: Investigation of "Shapeshifting" Properties. J Am Chem Soc 2015; 137:15225-33. [PMID: 26544765 PMCID: PMC4863954 DOI: 10.1021/jacs.5b09825] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The 2,4'- and 4,4'-linked variants of the cytotoxic agent secalonic acid A and their analogues have been synthesized. Kinetic resolution of an unprotected tetrahydroxanthone scaffold followed by copper-mediated biaryl coupling allowed for efficient access to these compounds. Evaluation of the "shapeshifting" properties of 2,2'-, 2,4'-, and 4,4'-linked variants of the secalonic acids A in a polar solvent in conjunction with assays of the compounds against select cancer cell lines was conducted to study possible correlations between linkage variation and cytotoxicity.
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Affiliation(s)
- Tian Qin
- Department of Chemistry and Center for Molecular Discovery (BU-CMD), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Takayuki Iwata
- Department of Chemistry and Center for Molecular Discovery (BU-CMD), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Tanya T. Ransom
- Molecular Targets Laboratory, Frederick National Laboratory for Cancer Research, National Cancer Institute, Frederick, Maryland 21702, United States
| | - John A. Beutler
- Molecular Targets Laboratory, Frederick National Laboratory for Cancer Research, National Cancer Institute, Frederick, Maryland 21702, United States
| | - John A. Porco
- Department of Chemistry and Center for Molecular Discovery (BU-CMD), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
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27
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Herrmann A. Dynamic combinatorial/covalent chemistry: a tool to read, generate and modulate the bioactivity of compounds and compound mixtures. Chem Soc Rev 2014; 43:1899-933. [PMID: 24296754 DOI: 10.1039/c3cs60336a] [Citation(s) in RCA: 281] [Impact Index Per Article: 28.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Reversible covalent bond formation under thermodynamic control adds reactivity to self-assembled supramolecular systems, and is therefore an ideal tool to assess complexity of chemical and biological systems. Dynamic combinatorial/covalent chemistry (DCC) has been used to read structural information by selectively assembling receptors with the optimum molecular fit around a given template from a mixture of reversibly reacting building blocks. This technique allows access to efficient sensing devices and the generation of new biomolecules, such as small molecule receptor binders for drug discovery, but also larger biomimetic polymers and macromolecules with particular three-dimensional structural architectures. Adding a kinetic factor to a thermodynamically controlled equilibrium results in dynamic resolution and in self-sorting and self-replicating systems, all of which are of major importance in biological systems. Furthermore, the temporary modification of bioactive compounds by reversible combinatorial/covalent derivatisation allows control of their release and facilitates their transport across amphiphilic self-assembled systems such as artificial membranes or cell walls. The goal of this review is to give a conceptual overview of how the impact of DCC on supramolecular assemblies at different levels can allow us to understand, predict and modulate the complexity of biological systems.
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Affiliation(s)
- Andreas Herrmann
- Firmenich SA, Division Recherche et Développement, Route des Jeunes 1, B. P. 239, CH-1211 Genève 8, Switzerland.
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28
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Köstereli Z, Scopelliti R, Severin K. Pattern-based sensing of aminoglycosides with fluorescent amphiphiles. Chem Sci 2014. [DOI: 10.1039/c4sc00737a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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29
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Misuraca MC, Moulin E, Ruff Y, Giuseppone N. Experimental and theoretical methods for the analyses of dynamic combinatorial libraries. NEW J CHEM 2014. [DOI: 10.1039/c4nj00304g] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Progresses in spatial and temporal analytical tools open new avenues for the study and control of increasingly complex chemical systems.
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Affiliation(s)
- Maria Cristina Misuraca
- SAMS research group – University of Strasbourg – Institut Charles Sadron
- CNRS
- 67034 Strasbourg Cedex 2, France
| | - Emilie Moulin
- SAMS research group – University of Strasbourg – Institut Charles Sadron
- CNRS
- 67034 Strasbourg Cedex 2, France
| | - Yves Ruff
- SAMS research group – University of Strasbourg – Institut Charles Sadron
- CNRS
- 67034 Strasbourg Cedex 2, France
| | - Nicolas Giuseppone
- SAMS research group – University of Strasbourg – Institut Charles Sadron
- CNRS
- 67034 Strasbourg Cedex 2, France
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30
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Wilson A, Gasparini G, Matile S. Functional systems with orthogonal dynamic covalent bonds. Chem Soc Rev 2014; 43:1948-62. [DOI: 10.1039/c3cs60342c] [Citation(s) in RCA: 229] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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31
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Teichert JF, Mazunin D, Bode JW. Chemical Sensing of Polyols with Shapeshifting Boronic Acids As a Self-Contained Sensor Array. J Am Chem Soc 2013; 135:11314-21. [DOI: 10.1021/ja404981q] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Johannes F. Teichert
- Department of Chemistry and Applied
Biosciences, Laboratorium
für Organische Chemie, ETH Zürich, Wolfgang Pauli Strasse 10, 8093 Zürich, Switzerland
| | - Dmitry Mazunin
- Department of Chemistry and Applied
Biosciences, Laboratorium
für Organische Chemie, ETH Zürich, Wolfgang Pauli Strasse 10, 8093 Zürich, Switzerland
| | - Jeffrey W. Bode
- Department of Chemistry and Applied
Biosciences, Laboratorium
für Organische Chemie, ETH Zürich, Wolfgang Pauli Strasse 10, 8093 Zürich, Switzerland
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32
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Lee B, Chen S, Heinis C, Scopelliti R, Severin K. Pattern-Based Sensing of Peptides and Aminoglycosides with a Single Molecular Probe. Org Lett 2013; 15:3456-9. [DOI: 10.1021/ol401495c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Boram Lee
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Shiyu Chen
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Christian Heinis
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Kay Severin
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
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33
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He M, Bode JW. E pluribus unum: isolation, structure determination, network analysis and DFT studies of a single metastable structure from a shapeshifting mixture of 852 bullvalene structural isomers. Org Biomol Chem 2013. [DOI: 10.1039/c2ob26954f] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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34
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McGonigal PR, de León C, Wang Y, Homs A, Solorio-Alvarado CR, Echavarren AM. Gold for the Generation and Control of Fluxional Barbaralyl Cations. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201207682] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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35
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McGonigal PR, de León C, Wang Y, Homs A, Solorio-Alvarado CR, Echavarren AM. Gold for the Generation and Control of Fluxional Barbaralyl Cations. Angew Chem Int Ed Engl 2012; 51:13093-6. [DOI: 10.1002/anie.201207682] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2012] [Indexed: 01/06/2023]
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36
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Rout B, Unger L, Armony G, Iron MA, Margulies D. Medication Detection by a Combinatorial Fluorescent Molecular Sensor. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206374] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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37
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Rout B, Unger L, Armony G, Iron MA, Margulies D. Medication Detection by a Combinatorial Fluorescent Molecular Sensor. Angew Chem Int Ed Engl 2012; 51:12477-81. [DOI: 10.1002/anie.201206374] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Indexed: 12/20/2022]
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