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Shioukhi I, Batchu H, Schwartz G, Minion L, Deree Y, Bogoslavsky B, Shimon LJW, Wade J, Hoffman R, Fuchter MJ, Markovich G, Gidron O. Helitwistacenes-Combining Lateral and Longitudinal Helicity Results in Solvent-Induced Inversion of Circularly Polarized Light. Angew Chem Int Ed Engl 2024; 63:e202319318. [PMID: 38224528 DOI: 10.1002/anie.202319318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/17/2024]
Abstract
Helicity is expressed differently in ortho- and para-fused acenes-helicenes and twistacenes, respectively. While the extent of helicity is constant in helicenes, it can be tuned in twistacenes, and the handedness of flexible twistacenes is often determined by more rigid helicenes. Here, we combine helicenes with rigid twistacenes consisting of a tunable degree of twisting, forming helitwistacenes. While the X-ray structures reveal that the connection does not affect the helicity of each moiety, their electronic circular dichroism (ECD) and circularly polarized luminescence (CPL) spectra are strongly affected by the helicity of the twistacene unit, resulting in solvent-induced sign inversion. ROESY NMR and TD-DFT calculations support this observation, which is explained by differences in the relative orientation of the helicene and twistacene moieties.
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Affiliation(s)
- Israa Shioukhi
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Edmond J. Safra Campus, 9190401, Jerusalem, Israel
| | - Harikrishna Batchu
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Edmond J. Safra Campus, 9190401, Jerusalem, Israel
| | - Gal Schwartz
- School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, 6997801, Tel Aviv, Israel
| | - Louis Minion
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, White City Campus, 82 Wood Lane, W12 0BZ, London, U.K
| | - Yinon Deree
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Edmond J. Safra Campus, 9190401, Jerusalem, Israel
| | - Benny Bogoslavsky
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Edmond J. Safra Campus, 9190401, Jerusalem, Israel
| | - Linda J W Shimon
- Chemical Research Support Unit, Weizmann Institute of Science, 76100, Rehovot, Israel
| | - Jessica Wade
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, White City Campus, 82 Wood Lane, W12 0BZ, London, U.K
- Department of Materials, Royal School of Mines, Imperial College London, SW7 2AZ, London, U.K
| | - Roy Hoffman
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Edmond J. Safra Campus, 9190401, Jerusalem, Israel
| | - Matthew J Fuchter
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, White City Campus, 82 Wood Lane, W12 0BZ, London, U.K
| | - Gil Markovich
- School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, 6997801, Tel Aviv, Israel
| | - Ori Gidron
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Edmond J. Safra Campus, 9190401, Jerusalem, Israel
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Metzger TS, Batchu H, Kumar A, Fedotov DA, Goren N, Bhowmick DK, Shioukhi I, Yochelis S, Schapiro I, Naaman R, Gidron O, Paltiel Y. Optical Activity and Spin Polarization: The Surface Effect. J Am Chem Soc 2023; 145:3972-3977. [PMID: 36765468 DOI: 10.1021/jacs.2c10456] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Chirality ('handedness') is a property that underlies a broad variety of phenomena in nature. Chiral molecules appear in two forms, and each is a mirror image of the other, the two enantiomers. The chirality of molecules is associated with their optical activity, and circular dichroism is commonly applied to identify the handedness of chiral molecules. Recently, the chiral induced spin selectivity (CISS) effect was established, according to which transfer of electrons within chiral molecules depends on the electron's spin. Which spin is preferred depends on the handedness of the chiral molecule and the direction of motion of the electron. Several experiments in the past indicated that there may be a relation between the optical activity of the molecules and their spin selectivity. Here, we show that for a molecule containing several stereogenic axes, when adsorbed on a metal substrate, the peaks in the CD spectra have the same signs for the two enantiomers. This is not the case when the molecules are adsorbed on a nonmetallic substrate or dissolved in solution. Quantum chemical simulations are able to explain the change in the CD spectra upon adsorption of the molecules on conductive and nonconductive surfaces. Surprisingly, the CISS properties are similar for the two enantiomers when adsorbed on the metal substrate, while when the molecules are adsorbed on nonmetallic surface, the preferred spin depends on the molecule handedness. This correlation between the optical activity and the CISS effect indicates that the CISS effect relates to the global polarizability of the molecule.
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Affiliation(s)
- Tzuriel S Metzger
- Department of Applied Physics and Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 9190401, Israel
| | - Harikrishna Batchu
- Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 9190401, Israel
| | - Anil Kumar
- Department of Chemical and Biological Physics, Weizmann Institute, Rehovot 76100, Israel
| | - Daniil A Fedotov
- Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 9190401, Israel
| | - Naama Goren
- Department of Applied Physics and Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 9190401, Israel
| | - Deb Kumar Bhowmick
- Department of Chemical and Biological Physics, Weizmann Institute, Rehovot 76100, Israel
| | - Israa Shioukhi
- Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 9190401, Israel
| | - Shira Yochelis
- Department of Applied Physics and Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 9190401, Israel
| | - Igor Schapiro
- Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 9190401, Israel
| | - Ron Naaman
- Department of Chemical and Biological Physics, Weizmann Institute, Rehovot 76100, Israel
| | - Ori Gidron
- Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 9190401, Israel
| | - Yossi Paltiel
- Department of Applied Physics and Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 9190401, Israel
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4
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Williamson AE, Ylioja PM, Robertson MN, Antonova-Koch Y, Avery V, Baell JB, Batchu H, Batra S, Burrows JN, Bhattacharyya S, Calderon F, Charman SA, Clark J, Crespo B, Dean M, Debbert SL, Delves M, Dennis ASM, Deroose F, Duffy S, Fletcher S, Giaever G, Hallyburton I, Gamo FJ, Gebbia M, Guy RK, Hungerford Z, Kirk K, Lafuente-Monasterio M, Lee A, Meister S, Nislow C, Overington JP, Papadatos G, Patiny L, Pham J, Ralph S, Ruecker A, Ryan E, Southan C, Srivastava K, Swain C, Tarnowski M, Thomson P, Turner P, Wallace IM, Wells TC, White K, White L, Willis P, Winzeler EA, Wittlin S, Todd MH. Open Source Drug Discovery: Highly Potent Antimalarial Compounds Derived from the Tres Cantos Arylpyrroles. ACS Cent Sci 2016; 2:687-701. [PMID: 27800551 PMCID: PMC5084075 DOI: 10.1021/acscentsci.6b00086] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Indexed: 05/26/2023]
Abstract
The development of new antimalarial compounds remains a pivotal part of the strategy for malaria elimination. Recent large-scale phenotypic screens have provided a wealth of potential starting points for hit-to-lead campaigns. One such public set is explored, employing an open source research mechanism in which all data and ideas were shared in real time, anyone was able to participate, and patents were not sought. One chemical subseries was found to exhibit oral activity but contained a labile ester that could not be replaced without loss of activity, and the original hit exhibited remarkable sensitivity to minor structural change. A second subseries displayed high potency, including activity within gametocyte and liver stage assays, but at the cost of low solubility. As an open source research project, unexplored avenues are clearly identified and may be explored further by the community; new findings may be cumulatively added to the present work.
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Affiliation(s)
- Alice E. Williamson
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Paul M. Ylioja
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Murray N. Robertson
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Yevgeniya Antonova-Koch
- Department
of Pediatrics, Pharmacology & Drug Development, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Vicky Avery
- Discovery Biology, Eskitis Institute for
Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
| | - Jonathan B. Baell
- Monash
Institute of Pharmaceutical Sciences, Monash
University, 381 Royal
Parade, Parkville, Victoria 3052, Australia
| | - Harikrishna Batchu
- CSIR-Central
Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226 031, India
| | - Sanjay Batra
- CSIR-Central
Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226 031, India
| | - Jeremy N. Burrows
- Medicines for Malaria Venture, PO Box
1826, 20 rte de Pre-Bois, 1215 Geneva 15, Switzerland
| | - Soumya Bhattacharyya
- CSIR-Central
Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226 031, India
| | - Felix Calderon
- Tres Cantos Medicines Development Campus, Diseases of the Developing
World, GlaxoSmithKline, Severo Ochoa 2, 28760 Tres Cantos, Spain
| | - Susan A. Charman
- Monash
Institute of Pharmaceutical Sciences, Monash
University, 381 Royal
Parade, Parkville, Victoria 3052, Australia
| | - Julie Clark
- Department of Chemical
Biology & Therapeutics, St. Jude Children’s
Research Hospital, MS 1000, Room E9050, 262 Danny Thomas Place, Memphis, Tennessee 38105-3678, United States
| | - Benigno Crespo
- Tres Cantos Medicines Development Campus, Diseases of the Developing
World, GlaxoSmithKline, Severo Ochoa 2, 28760 Tres Cantos, Spain
| | - Matin Dean
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Stefan L. Debbert
- Department of Chemistry, Lawrence University, 233 Steitz Science
Hall, 711 East Boldt Way, Appleton, Wisconsin 54911, United States
| | - Michael Delves
- Department of Life Sciences, Imperial College London, South Kensington, London SW7 2AZ, U.K.
| | - Adelaide S. M. Dennis
- Research School of Biology, The Australian National University, Canberra, ACT 2601, Australia
| | - Frederik Deroose
- Asclepia Outsourcing Solutions, Damvalleistraat 49, B-9070 Destelbergen, Belgium
| | - Sandra Duffy
- Discovery Biology, Eskitis Institute for
Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
| | - Sabine Fletcher
- Discovery Biology, Eskitis Institute for
Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
| | - Guri Giaever
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario M5S 3E1, Canada
| | - Irene Hallyburton
- Drug Discovery Unit, Division of Biological
Chemistry and Drug Discovery, University
of Dundee, Dundee, DD1 5EH, U.K.
| | - Francisco-Javier Gamo
- Tres Cantos Medicines Development Campus, Diseases of the Developing
World, GlaxoSmithKline, Severo Ochoa 2, 28760 Tres Cantos, Spain
| | - Marinella Gebbia
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario M5S 3E1, Canada
| | - R. Kiplin Guy
- Department of Chemical
Biology & Therapeutics, St. Jude Children’s
Research Hospital, MS 1000, Room E9050, 262 Danny Thomas Place, Memphis, Tennessee 38105-3678, United States
| | - Zoe Hungerford
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Kiaran Kirk
- Research School of Biology, The Australian National University, Canberra, ACT 2601, Australia
| | - Maria
J. Lafuente-Monasterio
- Tres Cantos Medicines Development Campus, Diseases of the Developing
World, GlaxoSmithKline, Severo Ochoa 2, 28760 Tres Cantos, Spain
| | - Anna Lee
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario M5S 3E1, Canada
| | - Stephan Meister
- Department
of Pediatrics, Pharmacology & Drug Development, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Corey Nislow
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario M5S 3E1, Canada
| | - John P. Overington
- European Molecular
Biology Laboratory—European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridgeshire CB10 1SD, U.K.
| | - George Papadatos
- European Molecular
Biology Laboratory—European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridgeshire CB10 1SD, U.K.
| | - Luc Patiny
- Institute of Chemical Sciences and Engineering
(ISIC), Ecole Polytechnique Fédérale
de Lausanne (EPFL), Lausanne 1015, Switzerland
| | - James Pham
- Department
of Biochemistry & Molecular Biology, Bio21 Molecular Science and
Biotechnology Institute, The University
of Melbourne, Melbourne, Victoria 3010, Australia
| | - Stuart
A. Ralph
- Department
of Biochemistry & Molecular Biology, Bio21 Molecular Science and
Biotechnology Institute, The University
of Melbourne, Melbourne, Victoria 3010, Australia
| | - Andrea Ruecker
- Department of Life Sciences, Imperial College London, South Kensington, London SW7 2AZ, U.K.
| | - Eileen Ryan
- Monash
Institute of Pharmaceutical Sciences, Monash
University, 381 Royal
Parade, Parkville, Victoria 3052, Australia
| | - Christopher Southan
- IUPHAR/BPS Guide to PHARMACOLOGY, Centre for Integrative Physiology,
School of Biomedical Sciences, University
of Edinburgh, Edinburgh, EH8 9XD, U.K.
| | - Kumkum Srivastava
- CSIR-Central
Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow, 226 031, India
| | - Chris Swain
- Cambridge MedChem
Consulting, 8 Mangers
Lane, Duxford, Cambridge CB22 4RN, U.K.
| | - Matthew
J. Tarnowski
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Patrick Thomson
- School
of Chemistry, The University of Edinburgh, Joseph Black Building, West Mains
Road, Edinburgh EH9 3JJ, U.K.
| | - Peter Turner
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Iain M. Wallace
- European Molecular
Biology Laboratory—European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridgeshire CB10 1SD, U.K.
| | - Timothy
N. C. Wells
- Medicines for Malaria Venture, PO Box
1826, 20 rte de Pre-Bois, 1215 Geneva 15, Switzerland
| | - Karen White
- Monash
Institute of Pharmaceutical Sciences, Monash
University, 381 Royal
Parade, Parkville, Victoria 3052, Australia
| | - Laura White
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Paul Willis
- Medicines for Malaria Venture, PO Box
1826, 20 rte de Pre-Bois, 1215 Geneva 15, Switzerland
| | - Elizabeth A. Winzeler
- Department
of Pediatrics, Pharmacology & Drug Development, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Sergio Wittlin
- Swiss Tropical and Public Health Institute, Socinstrasse 57, 4051 Basel, Switzerland
| | - Matthew H. Todd
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
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