1
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Yao Z, Wang X, Liu J, Zhou S, Zhang Z, He S, Liu J, Wu C, Fang X. Photoswitchable semiconducting polymer dots for pattern encoding and superresolution imaging. Chem Commun (Camb) 2023; 59:2469-2472. [PMID: 36752148 DOI: 10.1039/d2cc06707b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Two photoswitchable semiconducting polymers were synthesized by covalently incorporating photochromic dithienylethene (DTE) into the main chains. Small size polymer dots (Pdots) were prepared and showed dynamic photoswitching upon alternate light irradiation. By virtue of the tunable photoswitching properties, effective pattern encoding and superresolution imaging with a resolution of up to about 30 nm were achieved.
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Affiliation(s)
- Zihan Yao
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
| | - Xiaodong Wang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
| | - Jie Liu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
| | - Siyu Zhou
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
| | - Zhe Zhang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
| | - Shuwen He
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
| | - Jing Liu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
| | - Changfeng Wu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
| | - Xiaofeng Fang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
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2
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Marcon M, Crespi S, Pielmeier A, König B. A dinuclear copper(II) complex with photoswitchable catechol oxidation activity. Chem Commun (Camb) 2023; 59:948-951. [PMID: 36597959 DOI: 10.1039/d2cc06250j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In this study, we report the first example of a photoswitchable copper complex with catechol oxidase activity. The distance between the two copper centres is optimal for catalytic catechol oxidation in the Z-configuration. Thus, the activity of the catalyst is increased compared to its E-configuration.
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Affiliation(s)
- Michela Marcon
- Faculty of Chemistry and Pharmacy, University of Regensburg, Universitätsstraße 31, Regensburg 93053, Germany.
| | - Stefano Crespi
- Department of Chemistry, Ångström Laboratories, Uppsala University, Box 523, Uppsala 75120, Sweden
| | - Andreas Pielmeier
- Faculty of Chemistry and Pharmacy, University of Regensburg, Universitätsstraße 31, Regensburg 93053, Germany.
| | - Burkhard König
- Faculty of Chemistry and Pharmacy, University of Regensburg, Universitätsstraße 31, Regensburg 93053, Germany.
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3
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Zhou M, Mathew S, de Bruin B. Thermal and (Thermo-Reversible) Photochemical Cycloisomerization of 1 H-2-Benzo[ c]oxocins: From Synthetic Applications to the Development of a New T-Type Molecular Photoswitch. J Am Chem Soc 2022; 145:645-657. [PMID: 36548378 PMCID: PMC9837851 DOI: 10.1021/jacs.2c11310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A novel T-type molecular photoswitch based on the reversible cyclization of 1H-2-benzo[c]oxocins to dihydro-4H-cyclobuta[c]isochromenes has been developed. The switching mechanism involves a light-triggered ring-contraction of 8-membered 1H-2-benzo[c]oxocins to 4,6-fused O-heterocyclic dihydro-4H-cyclobuta[c]isochromene ring systems, with reversion back to the 1H-2-benzo[c]oxocin state accessible through heating. Both processes are unidirectional and proceed with good efficiency, with switching properties─including reversibility and half-life time─easily adjusted via structural functionalization. Our new molecular-switching platform exhibits independence from solvent polarity, originating from its neutral-charge switching mechanism, a property highly sought-after for biological applications. The photoinduced ring-contraction involves a [2+2] conjugated-diene cyclization that obeys the Woodward-Hoffmann rules. In contrast, the reverse process initiates via a thermal ring-opening (T > 60 °C) to produce the original 8-membered 1H-2-benzo[c]oxocins, which is thermally forbidden according to the Woodward-Hoffmann rules. The thermal ring-opening is likely to proceed via an ortho-quinodimethane (o-QDM) intermediate, and the corresponding switching mechanisms are supported by experimental observations and density functional theory calculations. Other transformations of 1H-2-benzo[c]oxocins were found upon altering reaction conditions: prolonged heating of the 1H-2-benzo[c]oxocins at a significantly elevated temperature (72 h at 120 °C), with the resulting dihydronaphthalenes formed via the o-QDM intermediate. These reactions also proceed with good chemoselectivities, providing new synthetic protocols for motifs found in several bioactive molecules, but are otherwise difficult to access.
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4
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Coenzyme Q10 in the eye isomerizes by sunlight irradiation. Sci Rep 2022; 12:12104. [PMID: 35840805 PMCID: PMC9287378 DOI: 10.1038/s41598-022-16343-8] [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: 03/28/2022] [Accepted: 07/08/2022] [Indexed: 11/14/2022] Open
Abstract
Photoisomerization of lipids has been well studied. As for the eyes, photoisomerization from 11-cis isomer to all-trans-retinal is well-known as the first step of the visual transduction in the photoreceptors. In addition to that, there would be other ocular lipids that undergo photoisomerization, which may be involved in ocular health and function. To explore any photoisomerizable lipids in the eyes, the nonirradiated and sunlight-irradiated eyeball extracts were subjected to liquid chromatography-mass spectrometry analysis, followed by the identification of the decreased lipid species in the irradiated extracts. Surprisingly, more than nine hundred lipid species were decreased in the irradiated extracts. Three lipid species, coenzyme Q10 (CoQ10), triglyceride(58:4), and coenzyme Q9, were decreased both significantly (p < 0.05) and by more than two-fold, where CoQ10 showed the most significant decrease. Later, photoisomerization was identified as the prominent cause underlying the decrease of CoQ10. Interestingly, CoQ10 in the sunlight-irradiated fresh eyeballs was also isomerized. Both the visible light and ultraviolet radiation were capable of producing CoQ10 isomer, while the latter showed rapid action. This study is believed to enhance our understanding of the biochemistry and photodamage of the eye and can potentially contribute to the advancement of opto-lipidomics.
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5
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Liang QF, Zheng HW, Yang DD, Zheng XJ. A triphenylamine derivative and its Cd( ii) complex with high-contrast mechanochromic luminescence and vapochromism. CrystEngComm 2022. [DOI: 10.1039/d1ce01319j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A triphenylamine derivative and its Cd(ii) complex exhibited predominant mechanochromism and vapochromism with high-contrast color and emission changes.
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Affiliation(s)
- Qiong-Fang Liang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Han-Wen Zheng
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Dong-Dong Yang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Xiang-Jun Zheng
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
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6
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Volarić J, Szymanski W, Simeth NA, Feringa BL. Molecular photoswitches in aqueous environments. Chem Soc Rev 2021; 50:12377-12449. [PMID: 34590636 PMCID: PMC8591629 DOI: 10.1039/d0cs00547a] [Citation(s) in RCA: 119] [Impact Index Per Article: 39.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Indexed: 12/17/2022]
Abstract
Molecular photoswitches enable dynamic control of processes with high spatiotemporal precision, using light as external stimulus, and hence are ideal tools for different research areas spanning from chemical biology to smart materials. Photoswitches are typically organic molecules that feature extended aromatic systems to make them responsive to (visible) light. However, this renders them inherently lipophilic, while water-solubility is of crucial importance to apply photoswitchable organic molecules in biological systems, like in the rapidly emerging field of photopharmacology. Several strategies for solubilizing organic molecules in water are known, but there are not yet clear rules for applying them to photoswitchable molecules. Importantly, rendering photoswitches water-soluble has a serious impact on both their photophysical and biological properties, which must be taken into consideration when designing new systems. Altogether, these aspects pose considerable challenges for successfully applying molecular photoswitches in aqueous systems, and in particular in biologically relevant media. In this review, we focus on fully water-soluble photoswitches, such as those used in biological environments, in both in vitro and in vivo studies. We discuss the design principles and prospects for water-soluble photoswitches to inspire and enable their future applications.
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Affiliation(s)
- Jana Volarić
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
| | - Wiktor Szymanski
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
- Department of Radiology, Medical Imaging Center, University of Groningen, University Medical Centre Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Nadja A Simeth
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
- Institute for Organic and Biomolecular Chemistry, University of Göttingen, Tammannstr. 2, 37077 Göttingen, Germany
| | - Ben L Feringa
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
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7
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Zhu C, Kou T, Kadi AA, Li J, Zhang Y. Molecular platforms based on biocompatible photoreactions for photomodulation of biological targets. Org Biomol Chem 2021; 19:9358-9368. [PMID: 34632469 DOI: 10.1039/d1ob01613j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photoirradiation provides a convenient and biocompatible approach for spatiotemporal modulation of biological systems with photoresponsive components. The construction of molecular platforms with a photoresponse to be integrated into biomolecules for photomodulation has been of great research interest in optochemical biology. In this review, we summarize typical molecular platforms that are integratable with biomolecules for photomodulation purposes. We categorize these molecular platforms according to their excitation light source, namely ultraviolet (UV), visible (Vis) or near-infrared (NIR) light. The protype chemistry of these molecular platforms is introduced along with an overview of their most recent applications for spatiotemporal regulation of biomolecular function in living cells or mice models. Challenges and the outlook are also presented. We hope this review paper will contribute to further progress in the development of molecular platforms and their biomedical use.
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Affiliation(s)
- Chenghong Zhu
- State Key Laboratory of Analytical Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China.
| | - Tianzhang Kou
- State Key Laboratory of Analytical Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China.
| | - Adnan A Kadi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh 11451, Kingdom of Saudi Arabia.
| | - Jinbo Li
- State Key Laboratory of Analytical Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China.
| | - Yan Zhang
- State Key Laboratory of Analytical Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China.
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8
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Sailer A, Meiring JCM, Heise C, Pettersson LN, Akhmanova A, Thorn‐Seshold J, Thorn‐Seshold O. Pyrrole Hemithioindigo Antimitotics with Near-Quantitative Bidirectional Photoswitching that Photocontrol Cellular Microtubule Dynamics with Single-Cell Precision*. Angew Chem Int Ed Engl 2021; 60:23695-23704. [PMID: 34460143 PMCID: PMC8596636 DOI: 10.1002/anie.202104794] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/23/2021] [Indexed: 11/07/2022]
Abstract
We report the first cellular application of the emerging near-quantitative photoswitch pyrrole hemithioindigo, by rationally designing photopharmaceutical PHTub inhibitors of the cytoskeletal protein tubulin. PHTubs allow simultaneous visible-light imaging and photoswitching in live cells, delivering cell-precise photomodulation of microtubule dynamics, and photocontrol over cell cycle progression and cell death. This is the first acute use of a hemithioindigo photopharmaceutical for high-spatiotemporal-resolution biological control in live cells. It additionally demonstrates the utility of near-quantitative photoswitches, by enabling a dark-active design to overcome residual background activity during cellular photopatterning. This work opens up new horizons for high-precision microtubule research using PHTubs and shows the cellular applicability of pyrrole hemithioindigo as a valuable scaffold for photocontrol of a range of other biological targets.
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Affiliation(s)
- Alexander Sailer
- Department of PharmacyLudwig-Maximilians University of MunichButenandtstrasse 781377MunichGermany
| | - Joyce C. M. Meiring
- Department of BiologyUtrecht UniversityPadualaan 83584UtrechtThe Netherlands
| | - Constanze Heise
- Department of PharmacyLudwig-Maximilians University of MunichButenandtstrasse 781377MunichGermany
| | - Linda N. Pettersson
- Department of PharmacyLudwig-Maximilians University of MunichButenandtstrasse 781377MunichGermany
| | - Anna Akhmanova
- Department of BiologyUtrecht UniversityPadualaan 83584UtrechtThe Netherlands
| | - Julia Thorn‐Seshold
- Department of PharmacyLudwig-Maximilians University of MunichButenandtstrasse 781377MunichGermany
| | - Oliver Thorn‐Seshold
- Department of PharmacyLudwig-Maximilians University of MunichButenandtstrasse 781377MunichGermany
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9
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Sailer A, Meiring JCM, Heise C, Pettersson LN, Akhmanova A, Thorn‐Seshold J, Thorn‐Seshold O. Pyrrole Hemithioindigo Antimitotics with Near‐Quantitative Bidirectional Photoswitching that Photocontrol Cellular Microtubule Dynamics with Single‐Cell Precision**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104794] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Alexander Sailer
- Department of Pharmacy Ludwig-Maximilians University of Munich Butenandtstrasse 7 81377 Munich Germany
| | - Joyce C. M. Meiring
- Department of Biology Utrecht University Padualaan 8 3584 Utrecht The Netherlands
| | - Constanze Heise
- Department of Pharmacy Ludwig-Maximilians University of Munich Butenandtstrasse 7 81377 Munich Germany
| | - Linda N. Pettersson
- Department of Pharmacy Ludwig-Maximilians University of Munich Butenandtstrasse 7 81377 Munich Germany
| | - Anna Akhmanova
- Department of Biology Utrecht University Padualaan 8 3584 Utrecht The Netherlands
| | - Julia Thorn‐Seshold
- Department of Pharmacy Ludwig-Maximilians University of Munich Butenandtstrasse 7 81377 Munich Germany
| | - Oliver Thorn‐Seshold
- Department of Pharmacy Ludwig-Maximilians University of Munich Butenandtstrasse 7 81377 Munich Germany
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10
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Gao L, Meiring JCM, Kraus Y, Wranik M, Weinert T, Pritzl SD, Bingham R, Ntouliou E, Jansen KI, Olieric N, Standfuss J, Kapitein LC, Lohmüller T, Ahlfeld J, Akhmanova A, Steinmetz MO, Thorn-Seshold O. A Robust, GFP-Orthogonal Photoswitchable Inhibitor Scaffold Extends Optical Control over the Microtubule Cytoskeleton. Cell Chem Biol 2021; 28:228-241.e6. [PMID: 33275880 DOI: 10.1016/j.chembiol.2020.11.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/10/2020] [Accepted: 11/13/2020] [Indexed: 12/16/2022]
Abstract
Optically controlled chemical reagents, termed "photopharmaceuticals," are powerful tools for precise spatiotemporal control of proteins particularly when genetic methods, such as knockouts or optogenetics are not viable options. However, current photopharmaceutical scaffolds, such as azobenzenes are intolerant of GFP/YFP imaging and are metabolically labile, posing severe limitations for biological use. We rationally designed a photoswitchable "SBT" scaffold to overcome these problems, then derivatized it to create exceptionally metabolically robust and fully GFP/YFP-orthogonal "SBTub" photopharmaceutical tubulin inhibitors. Lead compound SBTub3 allows temporally reversible, cell-precise, and even subcellularly precise photomodulation of microtubule dynamics, organization, and microtubule-dependent processes. By overcoming the previous limitations of microtubule photopharmaceuticals, SBTubs offer powerful applications in cell biology, and their robustness and druglikeness are favorable for intracellular biological control in in vivo applications. We furthermore expect that the robustness and imaging orthogonality of the SBT scaffold will inspire other derivatizations directed at extending the photocontrol of a range of other biological targets.
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Affiliation(s)
- Li Gao
- Department of Pharmacy, Ludwig-Maximilians University of Munich, Munich 81377, Germany
| | - Joyce C M Meiring
- Cell Biology, Neurobiology and Biophysics, Department of Biology, Faculty of Science, Utrecht University, Utrecht 3584, Netherlands
| | - Yvonne Kraus
- Department of Pharmacy, Ludwig-Maximilians University of Munich, Munich 81377, Germany
| | - Maximilian Wranik
- Laboratory of Biomolecular Research, Division of Biology and Chemistry, Paul Scherrer Institut, Villigen 5232, Switzerland
| | - Tobias Weinert
- Laboratory of Biomolecular Research, Division of Biology and Chemistry, Paul Scherrer Institut, Villigen 5232, Switzerland
| | - Stefanie D Pritzl
- Chair for Photonics and Optoelectronics, Nano-Institute Munich, Department of Physics, Ludwig-Maximilians University of Munich, Munich 80539, Germany
| | - Rebekkah Bingham
- Department of Pharmacy, Ludwig-Maximilians University of Munich, Munich 81377, Germany
| | - Evangelia Ntouliou
- Department of Pharmacy, Ludwig-Maximilians University of Munich, Munich 81377, Germany
| | - Klara I Jansen
- Cell Biology, Neurobiology and Biophysics, Department of Biology, Faculty of Science, Utrecht University, Utrecht 3584, Netherlands
| | - Natacha Olieric
- Laboratory of Biomolecular Research, Division of Biology and Chemistry, Paul Scherrer Institut, Villigen 5232, Switzerland
| | - Jörg Standfuss
- Laboratory of Biomolecular Research, Division of Biology and Chemistry, Paul Scherrer Institut, Villigen 5232, Switzerland
| | - Lukas C Kapitein
- Cell Biology, Neurobiology and Biophysics, Department of Biology, Faculty of Science, Utrecht University, Utrecht 3584, Netherlands
| | - Theobald Lohmüller
- Chair for Photonics and Optoelectronics, Nano-Institute Munich, Department of Physics, Ludwig-Maximilians University of Munich, Munich 80539, Germany
| | - Julia Ahlfeld
- Department of Pharmacy, Ludwig-Maximilians University of Munich, Munich 81377, Germany
| | - Anna Akhmanova
- Cell Biology, Neurobiology and Biophysics, Department of Biology, Faculty of Science, Utrecht University, Utrecht 3584, Netherlands
| | - Michel O Steinmetz
- Laboratory of Biomolecular Research, Division of Biology and Chemistry, Paul Scherrer Institut, Villigen 5232, Switzerland; Biozentrum, University of Basel, Basel 4056, Switzerland
| | - Oliver Thorn-Seshold
- Department of Pharmacy, Ludwig-Maximilians University of Munich, Munich 81377, Germany.
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11
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Hao T, Yang Y, Liang W, Fan C, Wang X, Wu W, Chen X, Fu H, Chen H, Yang C. Trace mild acid-catalysed Z → E isomerization of norbornene-fused stilbene derivatives: intelligent chiral molecular photoswitches with controllable self-recovery. Chem Sci 2020; 12:2614-2622. [PMID: 34164029 PMCID: PMC8179340 DOI: 10.1039/d0sc05213b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Stilbene derivatives have long been known to undergo “acid-catalyzed” Z → E isomerization, where a strong mineral acid at high concentration is practically necessary. Such severe reaction conditions often cause undesired by-reactions and limit their potential application. Herein, we present a trace mild acid-catalyzed Z → E isomerization found with stilbene derivatives fused with a norbornene moiety. By-reactions, such as the migration of the C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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C double bond and electrophilic addition reactions, were completely inhibited because of the ring strain caused by the fused norbornene component. Direct photolysis of the E isomers at selected wavelengths led to the E → Z photoisomerization of these stilbene derivatives and thus constituted a unique class of molecular switches orthogonally controllable by light and acid. The catalytic amount of acid could be readily removed, and the Z → E isomerization could be controlled by turning on/off the irradiation of a photoacid, which allowed repeated isomerization in a non-invasive manner. Moreover, the Z isomer produced by photoisomerization could spontaneously self-recover to the E isomer in the presence of a catalytic amount of acid. The kinetics of Z → E isomerization were adjustable by manipulating catalytic factors and, therefore, unprecedented molecular photoswitches with adjustable self-recovery were realized. Quantitative Z → E isomerization was catalyzed by trace mild acids to offer molecular switches orthogonally controllable by acid and light.![]()
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Affiliation(s)
- Taotao Hao
- Key Laboratory of Green Chemistry & Technology, College of Chemistry, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Yongsheng Yang
- Key Laboratory of Green Chemistry & Technology, College of Chemistry, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Wenting Liang
- Institute of Environmental Science, Department of Chemistry, Shanxi University Taiyuan 030006 China
| | - Chunying Fan
- Key Laboratory of Green Chemistry & Technology, College of Chemistry, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Xin Wang
- Key Laboratory of Green Chemistry & Technology, College of Chemistry, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Wanhua Wu
- Key Laboratory of Green Chemistry & Technology, College of Chemistry, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Xiaochuan Chen
- Key Laboratory of Green Chemistry & Technology, College of Chemistry, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Haiyan Fu
- Key Laboratory of Green Chemistry & Technology, College of Chemistry, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Hua Chen
- Key Laboratory of Green Chemistry & Technology, College of Chemistry, Sichuan University 29 Wangjiang Road Chengdu 610064 China
| | - Cheng Yang
- Key Laboratory of Green Chemistry & Technology, College of Chemistry, Sichuan University 29 Wangjiang Road Chengdu 610064 China
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12
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Hou IC, Berger F, Narita A, Müllen K, Hecht S. Proton-Gated Ring-Closure of a Negative Photochromic Azulene-Based Diarylethene. Angew Chem Int Ed Engl 2020; 59:18532-18536. [PMID: 33439528 PMCID: PMC7589205 DOI: 10.1002/anie.202007989] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Indexed: 01/14/2023]
Abstract
Proton-responsive photochromic molecules are attractive for their ability to react on non-invasive rapid optical stimuli and the importance of protonation/deprotonation processes in various fields. Conventionally, their acidic/basic sites are on hetero-atoms, which are orthogonal to the photo-active π-center. Here, we incorporate azulene, an acid-sensitive pure hydrocarbon, into the skeleton of a diarylethene-type photoswitch. The latter exhibits a novel proton-gated negative photochromic ring-closure and its optical response upon protonation in both open and closed forms is much more pronounced than those of diarylethene photoswitches with hetero-atom based acidic/basic moieties. The unique behavior of the new photoswitch can be attributed to direct protonation on its π-system, supported by 1H NMR and theoretical calculations. Our results demonstrate the great potential of integrating non-alternant hydrocarbons into photochromic systems for the development of multi-responsive molecular switches.
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Affiliation(s)
- Ian Cheng‐Yi Hou
- Synthetic ChemistryMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Department ChemieJohannes Gutenberg-University MainzDuesbergweg 10–1455128MainzGermany
| | - Fabian Berger
- Department of Chemistry & IRIS AdlershofHumboldt-Universität zu BerlinBrook-Taylor-Straße 212489BerlinGermany
| | - Akimitsu Narita
- Synthetic ChemistryMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Organic and Carbon Nanomaterials UnitOkinawa Institute of Science and Technology Graduate University1919-1 Tancha, Onna-sonKunigamiOkinawa904-0495Japan
| | - Klaus Müllen
- Synthetic ChemistryMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Department ChemieJohannes Gutenberg-University MainzDuesbergweg 10–1455128MainzGermany
| | - Stefan Hecht
- Department of Chemistry & IRIS AdlershofHumboldt-Universität zu BerlinBrook-Taylor-Straße 212489BerlinGermany
- DWI—Leibniz Institute for Interactive MaterialsForckenbeckstr. 5052074AachenGermany
- Institute of Technical and Macromolecular ChemistryRWTH Aachen UniversityWorringer Weg 252074AachenGermany
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13
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Hou IC, Berger F, Narita A, Müllen K, Hecht S. Protonenvermittelter Ringschluss eines negativ photochromen, Azulen‐basierten Diarylethens. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ian Cheng‐Yi Hou
- Synthesechemie Max-Planck-Institut für Polymerforschung Ackermannweg 10 55128 Mainz Deutschland
- Department Chemie Johannes Gutenberg-University Mainz Duesbergweg 10–14 55128 Mainz Deutschland
| | - Fabian Berger
- Department of Chemistry & IRIS Adlershof Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Deutschland
| | - Akimitsu Narita
- Synthesechemie Max-Planck-Institut für Polymerforschung Ackermannweg 10 55128 Mainz Deutschland
- Organic and Carbon Nanomaterials Unit Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha, Onna-son Kunigami Okinawa 904-0495 Japan
| | - Klaus Müllen
- Synthesechemie Max-Planck-Institut für Polymerforschung Ackermannweg 10 55128 Mainz Deutschland
- Department Chemie Johannes Gutenberg-University Mainz Duesbergweg 10–14 55128 Mainz Deutschland
| | - Stefan Hecht
- Department of Chemistry & IRIS Adlershof Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Deutschland
- DWI – Leibniz Institut für Interaktive Materialien Forckenbeckstr. 50 52074 Aachen Deutschland
- Institut für Technische und Makromolekulare Chemie RWTH Aachen University Worringer Weg 2 52074 Aachen Deutschland
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14
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Patel DG, Boggio-Pasqua M, Mitchell TB, Walton IM, Quigley WR, Novak FA. Computational and Crystallographic Examination of Naphthoquinone Based Diarylethene Photochromes. Molecules 2020; 25:molecules25112630. [PMID: 32516980 PMCID: PMC7321381 DOI: 10.3390/molecules25112630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 05/28/2020] [Accepted: 06/01/2020] [Indexed: 11/16/2022] Open
Abstract
Photochromic compounds have a lengthy history of study and a profusion of applications that stand to gain from these studies. Among the classes of photochromic compounds, diarylethenes show desirable properties including high fatigue resistance and thermal stability, thus meeting some of the most important criteria necessary to enter the realm of practical applications. Recently, photochromic diarylethenes containing quinone functionalities have demonstrated interesting optical and solid-state properties. When properly interfaced with suitable electron withdrawing groups on the aryl component, both the ring-opening and ring-closing reactions can be achieved with visible light; this is in contrast to most other diarylethenes where UV light is required for ring closure. Unfortunately, quantitative conversion from open to closed forms is not possible. In this work, we examine the relative energies of conformations of solid-state structures observed by X-ray crystallography and evaluate their thermal stabilities based on density functional theory (DFT) calculations. Time-dependent DFT (TD–DFT) is used to model the UV-vis absorption spectra of these quinone diarylethenes. We show that spectral overlap between open and closed forms is a major hindrance to full photoconversion.
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Affiliation(s)
- Dinesh G. Patel
- Department of Chemistry, the Pennsylvania State University at Hazleton, Hazleton, PA 18202, USA; (W.R.Q.); (F.A.N.)
- Correspondence: (D.G.P.); (M.B.-P.)
| | - Martial Boggio-Pasqua
- Laboratoire de Chimie et Physique Quantiques, CNRS/Université Paul Sabatier, 31062 Toulouse, France
- Correspondence: (D.G.P.); (M.B.-P.)
| | - Travis B. Mitchell
- Department of Chemistry, the State University of New York at Buffalo, Buffalo, NY 14260-3000, USA; (T.B.M.); (I.M.W.)
| | - Ian M. Walton
- Department of Chemistry, the State University of New York at Buffalo, Buffalo, NY 14260-3000, USA; (T.B.M.); (I.M.W.)
| | - William R. Quigley
- Department of Chemistry, the Pennsylvania State University at Hazleton, Hazleton, PA 18202, USA; (W.R.Q.); (F.A.N.)
| | - Frank A. Novak
- Department of Chemistry, the Pennsylvania State University at Hazleton, Hazleton, PA 18202, USA; (W.R.Q.); (F.A.N.)
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15
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Patel DG, Mitchell TB, Myers SD, Carter DA, Novak FA. A Suzuki Approach to Quinone-Based Diarylethene Photochromes. J Org Chem 2020; 85:2646-2653. [PMID: 31896258 DOI: 10.1021/acs.joc.9b02632] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Diarylethene photochromes show promise for use in advanced organic electronic and photonic materials with burgeoning considerations for biological applications; however, these compounds typically require UV light for photoswitching in at least one direction, thus limiting their appeal. We here introduce a naphthoquinone-based diarylethene that switches between open and closed forms with visible light. The synthesis of this quinone diarylethene relies on Suzuki methodology, allowing for the inclusion of functional groups not otherwise accessible with current synthetic routes.
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Affiliation(s)
- Dinesh G Patel
- Department of Chemistry , The Pennsylvania State University at Hazleton , Hazleton , Pennsylvania 18202 , United States
| | - Travis B Mitchell
- Department of Chemistry , The State University of New York at Buffalo , Buffalo , New York 14260-3000 , United States
| | - Shea D Myers
- Department of Chemistry , The Pennsylvania State University at Hazleton , Hazleton , Pennsylvania 18202 , United States
| | - Dorothy A Carter
- Department of Chemistry , The Pennsylvania State University at Hazleton , Hazleton , Pennsylvania 18202 , United States
| | - Frank A Novak
- Department of Chemistry , The Pennsylvania State University at Hazleton , Hazleton , Pennsylvania 18202 , United States
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16
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A building-block design for enhanced visible-light switching of diarylethenes. Nat Commun 2019; 10:4232. [PMID: 31530814 PMCID: PMC6748945 DOI: 10.1038/s41467-019-12302-6] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 08/28/2019] [Indexed: 11/09/2022] Open
Abstract
Current development of light-responsive materials and technologies imposes an urgent demand on visible-light photoswitching on account of its mild excitation with high penetration ability and low photo-toxicity. However, complicated molecular design and laborious synthesis are often required for visible-light photoswitch, especially for diarylethenes. Worse still, a dilemma is encountered as the visible-light excitation of the diarylethene is often achieved at the expense of photochromic performances. To tackle these setbacks, we introduce a building-block design strategy to achieve all-visible-light photochromism with the triplet-sensitization mechanism. The simply designed diarylethene system is constructed by employing a sensitizer building-block with narrow singlet-triplet energy gap (ΔEST) to a diarylethene building-block. A significant improvement on the photochromic efficiency is obtained as well as an enhanced photo-fatigue resistance over those under UV irradiation. The balance between the visible-light excitation and decent photochromism is thus realized, promoting a guiding principle for the visible-light photochromism.
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17
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Target-activated and ratiometric photochromic probe for “double-check” detection of toxic thiols in live cells. Sci China Chem 2019. [DOI: 10.1007/s11426-019-9490-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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18
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Sailer A, Ermer F, Kraus Y, Lutter FH, Donau C, Bremerich M, Ahlfeld J, Thorn‐Seshold O. Hemithioindigos for Cellular Photopharmacology: Desymmetrised Molecular Switch Scaffolds Enabling Design Control over the Isomer‐Dependency of Potent Antimitotic Bioactivity. Chembiochem 2019; 20:1305-1314. [DOI: 10.1002/cbic.201800752] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Indexed: 01/28/2023]
Affiliation(s)
- Alexander Sailer
- Department of PharmacyLudwig-Maximilians University Munich Butenandtstrasse 5–13 Munich 81377 Germany
| | - Franziska Ermer
- Department of PharmacyLudwig-Maximilians University Munich Butenandtstrasse 5–13 Munich 81377 Germany
| | - Yvonne Kraus
- Department of PharmacyLudwig-Maximilians University Munich Butenandtstrasse 5–13 Munich 81377 Germany
| | - Ferdinand H. Lutter
- Department of PharmacyLudwig-Maximilians University Munich Butenandtstrasse 5–13 Munich 81377 Germany
| | - Carsten Donau
- Department of PharmacyLudwig-Maximilians University Munich Butenandtstrasse 5–13 Munich 81377 Germany
| | - Maximilian Bremerich
- Department of PharmacyLudwig-Maximilians University Munich Butenandtstrasse 5–13 Munich 81377 Germany
| | - Julia Ahlfeld
- Department of PharmacyLudwig-Maximilians University Munich Butenandtstrasse 5–13 Munich 81377 Germany
| | - Oliver Thorn‐Seshold
- Department of PharmacyLudwig-Maximilians University Munich Butenandtstrasse 5–13 Munich 81377 Germany
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19
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Rustler K, Maleeva G, Bregestovski P, König B. Azologization of serotonin 5-HT 3 receptor antagonists. Beilstein J Org Chem 2019; 15:780-788. [PMID: 30992726 PMCID: PMC6444460 DOI: 10.3762/bjoc.15.74] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 03/14/2019] [Indexed: 01/05/2023] Open
Abstract
The serotonin 5-hydroxytryptamine 3 receptor (5-HT3R) plays a unique role within the seven classes of the serotonin receptor family, as it represents the only ionotropic receptor, while the other six members are G protein-coupled receptors (GPCRs). The 5-HT3 receptor is related to chemo-/radiotherapy provoked emesis and dysfunction leads to neurodevelopmental disorders and psychopathologies. Since the development of the first serotonin receptor antagonist in the early 1990s, the range of highly selective and potent drugs expanded based on various chemical structures. Nevertheless, on-off-targeting of a pharmacophore’s activity with high spatiotemporal resolution as provided by photopharmacology remains an unsolved challenge bearing additionally the opportunity for detailed receptor examination. In the presented work, we summarize the synthesis, photochromic properties and in vitro characterization of azobenzene-based photochromic derivatives of published 5-HT3R antagonists. Despite reported proof of principle of direct azologization, only one of the investigated derivatives showed antagonistic activity lacking isomer specificity.
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Affiliation(s)
- Karin Rustler
- Institute of Organic Chemistry, University of Regensburg, 93053 Regensburg, Germany
| | - Galyna Maleeva
- Aix-Marseille University, INSERM, INS, Institut de Neurosciences des Systèmes, 13005 Marseille, France
| | - Piotr Bregestovski
- Aix-Marseille University, INSERM, INS, Institut de Neurosciences des Systèmes, 13005 Marseille, France.,Department of Normal Physiology, Kazan State Medical University, Kazan, Russia.,Institute of Neurosciences, Kazan State Medical University, Kazan, Russia
| | - Burkhard König
- Institute of Organic Chemistry, University of Regensburg, 93053 Regensburg, Germany
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20
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Rustler K, Mickert MJ, Nazet J, Merkl R, Gorris HH, König B. Development of photoswitchable inhibitors for β-galactosidase. Org Biomol Chem 2018; 16:7430-7437. [PMID: 30264846 DOI: 10.1039/c8ob02122h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Azobenzenes are of particular interest as a photochromic scaffold for biological applications because of their high fatigue resistance, their large geometrical change between extended (trans) and bent (cis) isomer, and their diverse synthetic accessibility. Despite their wide-spread use, there is no reported photochromic inhibitor of the well-investigated enzyme β-galactosidase, which plays an important role for biochemistry and single molecule studies. Herein, we report the synthesis of photochromic competitive β-galactosidase inhibitors based on the molecular structure of 2-phenylethyl β-d-thiogalactoside (PETG) and 1-amino-1-deoxy-β-d-galactose (β-d-galactosylamine). The thermally highly stable PETG-based azobenzenes show excellent photochromic properties in polar solvents and moderate to high photostationary states (PSS). The optimized compound 37 is a strong competitive inhibitior of β-galactosidase from Escherichia coli and its inhibition constant (Ki) changes between 60 nM and 290 nM upon irradiation with light. Additional docking experiments supported the observed structure-activity relationship.
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Affiliation(s)
- Karin Rustler
- Institute of Organic Chemistry, University of Regensburg, 93053 Regensburg, Germany.
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21
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Simeth NA, Altmann LM, Wössner N, Bauer E, Jung M, König B. Photochromic Indolyl Fulgimides as Chromo-pharmacophores Targeting Sirtuins. J Org Chem 2018; 83:7919-7927. [DOI: 10.1021/acs.joc.8b00795] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Nadja A. Simeth
- Institute of Organic Chemistry, Department of Chemistry and Pharmacy, University of Regensburg, D-93040, Regensburg, Germany
| | - Lisa-Marie Altmann
- Institute of Organic Chemistry, Department of Chemistry and Pharmacy, University of Regensburg, D-93040, Regensburg, Germany
| | - Nathalie Wössner
- Institute of Pharmaceutical Sciences, University of Freiburg, D-79104 Freiburg, Germany
| | - Elisabeth Bauer
- Institute of Organic Chemistry, Department of Chemistry and Pharmacy, University of Regensburg, D-93040, Regensburg, Germany
| | - Manfred Jung
- Institute of Pharmaceutical Sciences, University of Freiburg, D-79104 Freiburg, Germany
| | - Burkhard König
- Institute of Organic Chemistry, Department of Chemistry and Pharmacy, University of Regensburg, D-93040, Regensburg, Germany
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22
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Simeth NA, Crespi S, Fagnoni M, König B. Tuning the Thermal Isomerization of Phenylazoindole Photoswitches from Days to Nanoseconds. J Am Chem Soc 2018; 140:2940-2946. [DOI: 10.1021/jacs.7b12871] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Nadja A. Simeth
- Institut für
Organische Chemie, Universität Regensburg, Universitätsstraße 31, 93040 Regensburg, Germany
| | - Stefano Crespi
- PhotoGreen Lab, Università di Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Maurizio Fagnoni
- PhotoGreen Lab, Università di Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Burkhard König
- Institut für
Organische Chemie, Universität Regensburg, Universitätsstraße 31, 93040 Regensburg, Germany
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