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Volarić J, Buter J, Schulte AM, van den Berg KO, Santamaría-Aranda E, Szymanski W, Feringa BL. Design and Synthesis of Visible-Light-Responsive Azobenzene Building Blocks for Chemical Biology. J Org Chem 2022; 87:14319-14333. [PMID: 36285612 PMCID: PMC9639001 DOI: 10.1021/acs.joc.2c01777] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Tetra-ortho-fluoro-azobenzenes are a class of photoswitches useful for the construction of visible-light-controlled molecular systems. They can be used to achieve spatio-temporal control over the properties of a chosen bioactive molecule. However, the introduction of different substituents to the tetra-fluoro-azobenzene core can significantly affect the photochemical properties of the switch and compromise biocompatibility. Herein, we explored the effect of useful substituents, such as functionalization points, attachment handles, and water-solubilizing groups, on the photochemical properties of this photochromic system. In general, all the tested fluorinated azobenzenes exhibited favorable photochemical properties, such as high photostationary state distribution and long half-lives, both in organic solvents and in water. One of the azobenzene building blocks was functionalized with a trehalose group to enable the uptake of the photoswitch into mycobacteria. Following metabolic uptake and incorporation of the trehalose-based azobenzene in the mycobacterial cell wall, we demonstrated photoswitching of the azobenzene in the isolated total lipid extract.
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Affiliation(s)
- Jana Volarić
- Stratingh
Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Jeffrey Buter
- Stratingh
Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Albert M. Schulte
- Stratingh
Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands
| | | | - Eduardo Santamaría-Aranda
- Stratingh
Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands,Departamento
de Química, Universidad de la Rioja, Centro de investigación en Síntesis Química, Madre de Dios 53, 26006 Logroño, Spain
| | - Wiktor Szymanski
- Stratingh
Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands,Department
of Radiology, Medical Imaging, Center, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands,
| | - Ben L. Feringa
- Stratingh
Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands,
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Kennedy ADW, DiNardi RG, Fillbrook LL, Donald WA, Beves JE. Visible-Light Switching of Metallosupramolecular Assemblies. Chemistry 2022; 28:e202104461. [PMID: 35102616 PMCID: PMC9302685 DOI: 10.1002/chem.202104461] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Indexed: 11/11/2022]
Abstract
A photoswitchable ligand and palladium(II) ions form a dynamic mixture of self-assembled metallosupramolecular structures. The photoswitching ligand is an ortho-fluoroazobenzene with appended pyridyl groups. Combining the E-isomer with palladium(II) salts affords a double-walled triangle with composition [Pd3 L6 ]6+ and a distorted tetrahedron [Pd4 L8 ]8+ (1 : 2 ratio at 298 K). Irradiation with 410 nm light generates a photostationary state with approximately 80 % of the E-isomer of the ligand and results in the selective disassembly of the tetrahedron, the more thermodynamically stable structure, and the formation of the triangle, the more kinetically inert product. The triangle is then slowly transformed back into the tetrahedron over 2 days at 333 K. The Z-isomer of the ligand does not form any well-defined structures and has a thermal half-life of 25 days at 298 K. This approach shows how a thermodynamically preferred self-assembled structure can be reversibly pumped to a kinetic trap by small perturbations of the isomer distribution using non-destructive visible light.
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Affiliation(s)
| | - Ray G. DiNardi
- School of ChemistryThe University of New South WalesSydneyNSW 2052Australia
| | - Lucy L. Fillbrook
- School of ChemistryThe University of New South WalesSydneyNSW 2052Australia
| | - William A. Donald
- School of ChemistryThe University of New South WalesSydneyNSW 2052Australia
| | - Jonathon E. Beves
- School of ChemistryThe University of New South WalesSydneyNSW 2052Australia
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Kasatkina SO, Geyl KK, Baykov SV, Novikov MS, Boyarskiy VP. “Urea to Urea” Approach: Access to Unsymmetrical Ureas Bearing Pyridyl Substituents. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Svetlana O. Kasatkina
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab., 7/9 Saint Petersburg 199034 Russian Federatio
| | - Kirill K. Geyl
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab., 7/9 Saint Petersburg 199034 Russian Federatio
| | - Sergey V. Baykov
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab., 7/9 Saint Petersburg 199034 Russian Federatio
| | - Mikhail S. Novikov
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab., 7/9 Saint Petersburg 199034 Russian Federatio
| | - Vadim P. Boyarskiy
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab., 7/9 Saint Petersburg 199034 Russian Federatio
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Zhou Y, Zhang HY, Liu Y. Photochemically driven luminescence switch of metal supramolecular assembly incorporating mixed lanthanides and photochromic guest molecule. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.09.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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