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Zerbib S, Khouili M, Catto M, Bouissane L. Sydnone: Synthesis, Reactivity and Biological Activities. Curr Med Chem 2023; 30:1122-1144. [PMID: 35726409 DOI: 10.2174/0929867329666220620123050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 02/07/2022] [Accepted: 03/24/2022] [Indexed: 11/22/2022]
Abstract
Sydnones are among the most well-known mesoionic compounds. Since their synthesis in 1935 by Earl and Mecknay, numerous researches have shown that the chemical behavior, physical and biological properties of sydnones make them the most useful compounds in organic chemistry. Sydnones undergo thermal 1,3-dipolar cycloaddition reaction with dipolarophiles (alkynes or alkenes) to give exclusively derivatives containing a pyrazole moiety exhibiting numerous applications, such as pharmaceuticals and agrochemicals. However, the sydnone cycloaddition reaction with alkynes requires harsh conditions, like high temperatures and long reaction times, giving poor regioselectivity to the resulting products. To overcome these constraints, new reactions named CuSAC (Copper- Catalyzed Sydnone-Alkyne Cycloaddition) and SPSAC (Strain-Promoted Sydnone- Alkyne Cycloaddition) have been developed, leading to pyrazoles with interesting constant kinetics.
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Affiliation(s)
- Souad Zerbib
- Molecular Chemistry, Materials and Catalysis Laboratory, Faculty of Sciences and Technologies, Sultan Moulay Slimane University, BP 523, 23000 Beni-Mellal, Morocco
| | - Mostafa Khouili
- Molecular Chemistry, Materials and Catalysis Laboratory, Faculty of Sciences and Technologies, Sultan Moulay Slimane University, BP 523, 23000 Beni-Mellal, Morocco
| | - Marco Catto
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, via E. Orabona 4, 70125 Bari, Italy
| | - Latifa Bouissane
- Molecular Chemistry, Materials and Catalysis Laboratory, Faculty of Sciences and Technologies, Sultan Moulay Slimane University, BP 523, 23000 Beni-Mellal, Morocco
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2
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Chinoy ZS, Friscourt F. Expanding the Strain‐Promoted 1,3‐Dipolar Cycloaddition Arsenal for a More Selective Bioorthogonal Labeling in Living Cells. Isr J Chem 2022. [DOI: 10.1002/ijch.202200055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zoeisha S. Chinoy
- Institut Européen de Chimie et Biologie Université de Bordeaux 2 rue Robert Escarpit 33607 Pessac France
- Institut des Sciences Moléculaires CNRS UMR5255 33405 Talence France
| | - Frédéric Friscourt
- Institut Européen de Chimie et Biologie Université de Bordeaux 2 rue Robert Escarpit 33607 Pessac France
- Institut des Sciences Moléculaires CNRS UMR5255 33405 Talence France
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3
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Xiao M, Zhang YK, Li R, Li S, Wang D, An P. Photoactivatable Fluorogenic Azide-Alkyne Click Reaction: A Dual-Activation Fluorescent Probe. Chem Asian J 2022; 17:e202200634. [PMID: 35819362 DOI: 10.1002/asia.202200634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/01/2022] [Indexed: 11/12/2022]
Abstract
Aryl azide and diaryl tetrazole are both photoactive molecules, which can form nitrene and nitrile imine intermediates respectively by photolysis. Depending on the new finding that the azide can suppress the photolysis of tetrazole in the azide-tetrazole conjugated system, we developed aryl azide-tetrazole probes for the photoactivatable fluorogenic azide alkyne click (PFAAC) reaction, in which the aryl azide-tetrazole probes were not phoroactivatable fluorogenic itself, but the triazole products after click reaction were prefluorophore that can be activated by light. Therefore, in PFAAC chemistry, the fluorescent probes can be activated by two orthogonal events: azide-alkyne click reaction and light, which leads to spatiotemporal resolution and high signal-to-noise ratio. This PFAAC process was proved in vitro by copper catalyzed or strain-promoted azide-alkyne reactions and in live cells by spatiotemporally controlled organelle imaging. By incorporation a linker to the azide-tetrazole conjugate, this PFAAC chemistry could covalently label extra probes to the biomolecules and spatiotemporally detecting this process by photoinduced fluorescence.
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Affiliation(s)
| | | | | | | | - Di Wang
- Yunnan University, chemistry, CHINA
| | - Peng An
- Yunnan University, school of chemical science and technology, South Outer Ring Road, 650500, Kunming, CHINA
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4
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Chinoy ZS, Moremen KW, Friscourt F. A Clickable Bioorthogonal Sydnone‐Aglycone for the Facile Preparation of a Core 1
O
‐Glycan‐Array. European J Org Chem 2022; 2022:e202200271. [PMID: 36035814 PMCID: PMC9401066 DOI: 10.1002/ejoc.202200271] [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: 03/04/2022] [Revised: 04/13/2022] [Indexed: 11/12/2022]
Abstract
Protein‐O‐glycosylation has been shown to be essential for many biological processes. However, determining the exact relationship between O‐glycan structures and their biological activity remains challenging. Here we report that, unlike azides, sydnones can be incorporated as an aglycon into core 1 O‐glycans early‐on in their synthesis since it is compatible with carbohydrate chemistry and enzymatic glycosylations, allowing us to generate a small library of sydnone‐containing core 1 O‐glycans by chemoenzymatic synthesis. The sydnone‐aglycon was then employed for the facile preparation of an O‐glycan array, via bioorthogonal strain‐promoted sydnone‐alkyne cycloaddition click reaction, and in turn was utilized for the high‐throughput screening of O‐glycan‐lectin interactions. This sydnone‐aglycon, particularly adapted for O‐glycomics, is a valuable chemical tool that complements the limited technologies available for investigating O‐glycan structure‐activity relationships.
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Affiliation(s)
- Zoeisha S. Chinoy
- Institut Européen de Chimie et Biologie Université de Bordeaux 2 rue Robert Escarpit 33607 Pessac France
- Institut des Sciences Moléculaires CNRS UMR5255 33405 Talence France
| | - Kelley W. Moremen
- Department of Biochemistry and Molecular Biology University of Georgia Athens GA 30602 USA
- Complex Carbohydrate Research Center University of Georgia Athens GA 30602 USA
| | - Frédéric Friscourt
- Institut Européen de Chimie et Biologie Université de Bordeaux 2 rue Robert Escarpit 33607 Pessac France
- Institut des Sciences Moléculaires CNRS UMR5255 33405 Talence France
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5
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Click amidations, esterifications and one–pot reactions catalyzed by Cu salts and multimetal–organic frameworks (M–MOFs). MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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6
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Krell K, Pfeuffer B, Rönicke F, Chinoy ZS, Favre C, Friscourt F, Wagenknecht H. Fast and Efficient Postsynthetic DNA Labeling in Cells by Means of Strain-Promoted Sydnone-Alkyne Cycloadditions. Chemistry 2021; 27:16093-16097. [PMID: 34633713 PMCID: PMC9297951 DOI: 10.1002/chem.202103026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Indexed: 12/16/2022]
Abstract
Sydnones are highly stable mesoionic 1,3-dipoles that react with cyclooctynes through strain-promoted sydnone-alkyne cycloaddition (SPSAC). Although sydnones have been shown to be valuable bioorthogonal chemical reporters for the labeling of proteins and complex glycans, nucleic acids have not yet been tagged by SPSAC. Evaluation of SPSAC kinetics with model substrates showed fast reactions with cyclooctyne probes (up to k=0.59 M-1 s-1 ), and two different sydnones were effectively incorporated into both 2'-deoxyuridines at position 5, and 7-deaza-2'-deoxyadenosines at position 7. These modified nucleosides were synthetically incorporated into single-stranded DNAs, which were successfully postsynthetically labeled with cyclooctyne probes both in vitro and in cells. These results show that sydnones are versatile bioorthogonal tags and have the premise to become essential tools for tracking DNA and potentially RNA in living cells.
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Affiliation(s)
- Katja Krell
- Institute of Organic ChemistryKarlsruhe Institute of Technology (KIT)Fritz-Haber-Weg 676131KarlsruheGermany
| | - Bastian Pfeuffer
- Institute of Organic ChemistryKarlsruhe Institute of Technology (KIT)Fritz-Haber-Weg 676131KarlsruheGermany
| | - Franziska Rönicke
- Institute of Organic ChemistryKarlsruhe Institute of Technology (KIT)Fritz-Haber-Weg 676131KarlsruheGermany
| | - Zoeisha S. Chinoy
- Institut Européen de Chimie et Biologie and ISM CNRS UMR5255Université de Bordeaux2 Rue Robert Escarpit33607PessacFrance
| | - Camille Favre
- Institut Européen de Chimie et Biologie and ISM CNRS UMR5255Université de Bordeaux2 Rue Robert Escarpit33607PessacFrance
| | - Frédéric Friscourt
- Institut Européen de Chimie et Biologie and ISM CNRS UMR5255Université de Bordeaux2 Rue Robert Escarpit33607PessacFrance
| | - Hans‐Achim Wagenknecht
- Institute of Organic ChemistryKarlsruhe Institute of Technology (KIT)Fritz-Haber-Weg 676131KarlsruheGermany
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7
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Chinoy ZS, Montembault E, Moremen KW, Royou A, Friscourt F. Impacting Bacterial Sialidase Activity by Incorporating Bioorthogonal Chemical Reporters onto Mammalian Cell-Surface Sialosides. ACS Chem Biol 2021; 16:2307-2314. [PMID: 34590826 DOI: 10.1021/acschembio.1c00469] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Bioorthogonal chemical reporters, in synergy with click chemistry, have emerged as a key technology for tagging complex glycans in living cells. This strategy relies on the fact that bioorthogonal chemical reporters are highly reactive species while being biologically noninvasive. Here, we report that chemical reporters and especially sydnones may have, on the contrary, enormous impact on biomolecule processing enzymes. More specifically, we show that editing cell-surface sialic acid-containing glycans (sialosides) with bioorthogonal chemical reporters can significantly affect the activity of bacterial sialidases, enzymes expressed by bacteria during pathogenesis for cleaving sialic acid sugars from mammalian cell-surface glycans. Upon screening various chemical reporters, as well as their position on the sialic acid residue, we identified that pathogenic bacterial sialidases were unable to cleave sialosides displaying a sydnone at the 5-position of sialic acids in vitro as well as in living cells. This study highlights the importance of investigating more systematically the metabolic fate of glycoconjugates modified with bioorthogonal reporters.
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Affiliation(s)
- Zoeisha S. Chinoy
- Institut Européen de Chimie et Biologie, Université de Bordeaux, 2 rue Robert Escarpit, 33607 Pessac, France
- Institut des Sciences Moléculaires, CNRS UMR5255, 33405 Talence, France
| | - Emilie Montembault
- Institut Européen de Chimie et Biologie, Université de Bordeaux, 2 rue Robert Escarpit, 33607 Pessac, France
- Institut de Biochimie et Génétique Cellulaires, CNRS UMR5095, 33077 Bordeaux, France
| | - Kelley W. Moremen
- Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia 30602, United States
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia 30602, United States
| | - Anne Royou
- Institut Européen de Chimie et Biologie, Université de Bordeaux, 2 rue Robert Escarpit, 33607 Pessac, France
- Institut de Biochimie et Génétique Cellulaires, CNRS UMR5095, 33077 Bordeaux, France
| | - Frédéric Friscourt
- Institut Européen de Chimie et Biologie, Université de Bordeaux, 2 rue Robert Escarpit, 33607 Pessac, France
- Institut des Sciences Moléculaires, CNRS UMR5255, 33405 Talence, France
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8
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Zhou HQ, Gu XW, Zhou XH, Li L, Ye F, Yin GW, Xu Z, Xu LW. Enantioselective palladium-catalyzed C(sp 2)-C(sp 2) σ bond activation of cyclopropenones by merging desymmetrization and (3 + 2) spiroannulation with cyclic 1,3-diketones. Chem Sci 2021; 12:13737-13743. [PMID: 34760158 PMCID: PMC8549799 DOI: 10.1039/d1sc04558j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 09/19/2021] [Indexed: 11/21/2022] Open
Abstract
Catalytic asymmetric variants for functional group transformations based on carbon–carbon bond activation still remain elusive. Herein we present an unprecedented palladium-catalyzed (3 + 2) spiro-annulation merging C(sp2)–C(sp2) σ bond activation and click desymmetrization to form synthetically versatile and value-added oxaspiro products. The operationally straightforward and enantioselective palladium-catalyzed atom-economic annulation process exploits a TADDOL-derived bulky P-ligand bearing a large cavity to control enantioselective spiro-annulation that converts cyclopropenones and cyclic 1,3-diketones into chiral oxaspiro cyclopentenone–lactone scaffolds with good diastereo- and enantio-selectivity. The click-like reaction is a successful methodology with a facile construction of two vicinal carbon quaternary stereocenters and can be used to deliver additional stereocenters during late-state functionalization for the synthesis of highly functionalized or more complex molecules. An unprecedented palladium-catalyzed (3 + 2) spiro-annulation merging C–C bond activation and desymmetrization was developed for the enantioselective construction of synthetically versatile and value-added oxaspiro products with up to 95% ee.![]()
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Affiliation(s)
- Han-Qi Zhou
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Xing-Wei Gu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Xiao-Hua Zhou
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Li Li
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Fei Ye
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Guan-Wu Yin
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Zheng Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
| | - Li-Wen Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China .,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute and Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences P. R. China
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9
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Mummel S, Lederle F, Hübner EG, Namyslo JC, Nieger M, Schmidt A. Sydnone Methides-A Forgotten Class of Mesoionic Compounds for the Generation of Anionic N-Heterocyclic Carbenes. Angew Chem Int Ed Engl 2021; 60:18882-18887. [PMID: 34153173 PMCID: PMC8456854 DOI: 10.1002/anie.202107495] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Indexed: 12/25/2022]
Abstract
Sydnone methides are described from which only one single example has been mentioned in the literature so far. Their deprotonation gave anions which can be formulated as π-electron rich anionic N-heterocyclic carbenes. Sulfur and selenium adducts were stabilized as their methyl ethers, and mercury, gold as well as rhodium complexes of the sydnone methide carbenes were prepared. Sydnone methide anions also undergo C-C coupling reactions with 1-fluoro-4-iodobenzene under Pd(PPh3 )4 and CuBr catalysis. 77 Se NMR resonance frequencies and 1 JC4-Se as well as 1 JC4-H coupling constants have been determined to gain knowledge about the electronic properties of the anionic N-heterocyclic carbenes. The carbene carbon atom of the sydnone methide anion 3 j resonates at δ=155.2 ppm in 13 C NMR spectroscopy at -40 °C which is extremely shifted upfield in comparison to classical N-heterocyclic carbenes.
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Affiliation(s)
- Sebastian Mummel
- Clausthal University of TechnologyInstitute of Organic ChemistryLeibnizstrasse 6D-38678Clausthal-ZellerfeldGermany
| | - Felix Lederle
- Clausthal University of TechnologyInstitute of Organic ChemistryLeibnizstrasse 6D-38678Clausthal-ZellerfeldGermany
- Fraunhofer Heinrich Hertz Institute HHIFiber Optical Sensor SystemsAm Stollen 19HD-38640GoslarGermany
| | - Eike G. Hübner
- Clausthal University of TechnologyInstitute of Organic ChemistryLeibnizstrasse 6D-38678Clausthal-ZellerfeldGermany
- Fraunhofer Heinrich Hertz Institute HHIFiber Optical Sensor SystemsAm Stollen 19HD-38640GoslarGermany
| | - Jan C. Namyslo
- Clausthal University of TechnologyInstitute of Organic ChemistryLeibnizstrasse 6D-38678Clausthal-ZellerfeldGermany
| | - Martin Nieger
- University of HelsinkiDepartment of ChemistryP.O. Box 55FIN-00014HelsinkiFinland
| | - Andreas Schmidt
- Clausthal University of TechnologyInstitute of Organic ChemistryLeibnizstrasse 6D-38678Clausthal-ZellerfeldGermany
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10
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Mummel S, Lederle F, Hübner EG, Namyslo JC, Nieger M, Schmidt A. Sydnonmethide – fast vergessene Mesoionen als Vorläufermoleküle von anionischen N‐heterocyclischen Carbenen. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107495] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Sebastian Mummel
- Technische Universität Clausthal Institut für Organische Chemie Leibnizstrasse 6 38678 Clausthal-Zellerfeld Deutschland
| | - Felix Lederle
- Technische Universität Clausthal Institut für Organische Chemie Leibnizstrasse 6 38678 Clausthal-Zellerfeld Deutschland
- Fraunhofer Heinrich-Hertz-Institut HHI Faseroptische Sensorsysteme Am Stollen 19H 38640 Goslar Deutschland
| | - Eike G. Hübner
- Technische Universität Clausthal Institut für Organische Chemie Leibnizstrasse 6 38678 Clausthal-Zellerfeld Deutschland
- Fraunhofer Heinrich-Hertz-Institut HHI Faseroptische Sensorsysteme Am Stollen 19H 38640 Goslar Deutschland
| | - Jan C. Namyslo
- Technische Universität Clausthal Institut für Organische Chemie Leibnizstrasse 6 38678 Clausthal-Zellerfeld Deutschland
| | - Martin Nieger
- Universität Helsinki Department für Chemie P.O. Box 55 00014 Helsinki Finnland
| | - Andreas Schmidt
- Technische Universität Clausthal Institut für Organische Chemie Leibnizstrasse 6 38678 Clausthal-Zellerfeld Deutschland
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Affiliation(s)
- Vincent Rigolot
- UMR 8576 CNRS Unité de Glycobiologie Structurale et Fonctionnelle Université de Lille Faculté des Sciences et Technologies Bât. C9, 59655 Villeneuve d'Ascq France
| | - Christophe Biot
- UMR 8576 CNRS Unité de Glycobiologie Structurale et Fonctionnelle Université de Lille Faculté des Sciences et Technologies Bât. C9, 59655 Villeneuve d'Ascq France
| | - Cedric Lion
- UMR 8576 CNRS Unité de Glycobiologie Structurale et Fonctionnelle Université de Lille Faculté des Sciences et Technologies Bât. C9, 59655 Villeneuve d'Ascq France
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12
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Porte K, Riomet M, Figliola C, Audisio D, Taran F. Click and Bio-Orthogonal Reactions with Mesoionic Compounds. Chem Rev 2021; 121:6718-6743. [PMID: 33238101 DOI: 10.1021/acs.chemrev.0c00806] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Click and bio-orthogonal reactions are dominated by cycloaddition reactions in general and 1,3-dipolar cycloadditions in particular. Among the dipoles routinely used for click chemistry, azides, nitrones, isonitriles, and nitrile oxides are the most popular. This review is focused on the emerging click chemistry that uses mesoionic compounds as dipole partners. Mesoionics are a very old family of molecules, but their use as reactants for click and bio-orthogonal chemistry is quite recent. The facility to derivatize these dipoles and to tune their reactivity toward cycloaddition reactions makes mesoionics an attractive opportunity for future click chemistry development. In addition, some compounds from this family are able to undergo click-and-release reactions, finding interesting applications in cells, as well as in animals. This review covers the synthetic access to main mesoionics, their reaction with dipolarophiles, and recent applications in chemical biology and heterocycle synthesis.
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Affiliation(s)
- Karine Porte
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France
| | - Margaux Riomet
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France
| | - Carlotta Figliola
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France
| | - Davide Audisio
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France
| | - Frédéric Taran
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France
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13
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Rigolot V, Biot C, Lion C. To View Your Biomolecule, Click inside the Cell. Angew Chem Int Ed Engl 2021; 60:23084-23105. [PMID: 34097349 DOI: 10.1002/anie.202101502] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Indexed: 12/13/2022]
Abstract
The surging development of bioorthogonal chemistry has profoundly transformed chemical biology over the last two decades. Involving chemical partners that specifically react together in highly complex biological fluids, this branch of chemistry now allows researchers to probe biomolecules in their natural habitat through metabolic labelling technologies. Chemical reporter strategies include metabolic glycan labelling, site-specific incorporation of unnatural amino acids in proteins, and post-synthetic labelling of nucleic acids. While a majority of literature reports mark cell-surface exposed targets, implementing bioorthogonal ligations in the interior of cells constitutes a more challenging task. Owing to limiting factors such as membrane permeability of reagents, fluorescence background due to hydrophobic interactions and off-target covalent binding, and suboptimal balance between reactivity and stability of the designed molecular reporters and probes, these strategies need mindful planning to achieve success. In this review, we discuss the hurdles encountered when targeting biomolecules localized in cell organelles and give an easily accessible summary of the strategies at hand for imaging intracellular targets.
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Affiliation(s)
- Vincent Rigolot
- UMR 8576 CNRS, Unité de Glycobiologie Structurale et Fonctionnelle, Université de Lille, Faculté des Sciences et Technologies, Bât. C9, 59655, Villeneuve d'Ascq, France
| | - Christophe Biot
- UMR 8576 CNRS, Unité de Glycobiologie Structurale et Fonctionnelle, Université de Lille, Faculté des Sciences et Technologies, Bât. C9, 59655, Villeneuve d'Ascq, France
| | - Cedric Lion
- UMR 8576 CNRS, Unité de Glycobiologie Structurale et Fonctionnelle, Université de Lille, Faculté des Sciences et Technologies, Bât. C9, 59655, Villeneuve d'Ascq, France
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14
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Glycoengineering: scratching the surface. Biochem J 2021; 478:703-719. [DOI: 10.1042/bcj20200612] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/22/2020] [Accepted: 01/19/2021] [Indexed: 12/11/2022]
Abstract
At the surface of many cells is a compendium of glycoconjugates that form an interface between the cell and its surroundings; the glycocalyx. The glycocalyx serves several functions that have captivated the interest of many groups. Given its privileged residence, this meshwork of sugar-rich biomolecules is poised to transmit signals across the cellular membrane, facilitating communication with the extracellular matrix and mediating important signalling cascades. As a product of the glycan biosynthetic machinery, the glycocalyx can serve as a partial mirror that reports on the cell's glycosylation status. The glycocalyx can also serve as an information-rich barrier, withholding the entry of pathogens into the underlying plasma membrane through glycan-rich molecular messages. In this review, we provide an overview of the different approaches devised to engineer glycans at the cell surface, highlighting considerations of each, as well as illuminating the grand challenges that face the next era of ‘glyco-engineers’. While we have learned much from these techniques, it is evident that much is left to be unearthed.
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16
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Lo KKW. Molecular Design of Bioorthogonal Probes and Imaging Reagents Derived from Photofunctional Transition Metal Complexes. Acc Chem Res 2020; 53:32-44. [PMID: 31916746 DOI: 10.1021/acs.accounts.9b00416] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
For more than 15 years, bioorthogonal chemistry has received increasing attention due to its successful applications in the detection and imaging of biomolecules in their native biological environments. The method typically proceeds with the incorporation of a biological substrate appended with a bioorthogonal functional group (chemical reporter), followed by the introduction of the substrate to biological systems. Biomolecules containing the substrate are then recognized by an exogenously delivered bioorthogonal probe. Despite the fact that many useful chemical reporters and bioorthogonal reactions have been developed, most of the bioorthogonal probes reported thus far are fluorescent dyes. A limitation is that stringent washing is required due to the interference caused by the background fluorescence of unreacted probes. Thus, fluorogenic probes with turn-on emission properties upon bioorthogonal labeling have been designed as an alternative strategy. These probes are highly appealing because excellent images can be obtained without the need for washing steps. Nearly all fluorogenic bioorthogonal probes designed are essentially organic dyes, their emission is limited to fluorescence, and the utilization of the probes is confined to bioimaging applications. Recently, there has been a growing interest in the bioimaging and therapeutic applications of luminescent inorganic and organometallic transition metal complexes due to their intriguing photophysical and photochemical properties, high membrane permeability, controllable cellular uptake, intracellular localization, and cytotoxicity. We anticipate that photofunctional transition metal complexes can be exploited as valuable bioorthogonal probes due to these appealing advantages. In this Account, we introduce the molecular design, photophysical and photochemical properties, and biological applications of various bioorthogonal probes and imaging reagents based on photofunctional transition metal complexes. The presence of a cationic metal center significantly enhances the bioorthogonal reactivity of the probes, yet their stability in aqueous solutions can be maintained. Interestingly, some of these metal complexes are strategically modified to display phosphorogenic properties, that is, phosphorescence turn-on upon bioorthogonal labeling reactions. Importantly, these probes not only exhibit favorable photophysical properties after bioorthogonal labeling, but also efficient photoinduced singlet oxygen (1O2) generation. This interesting bioorthogonal reaction-triggered photosensitization capability allows the modulation of 1O2 generation efficiency and contributes to the development of controllable photocytotoxic agents. The exploration of transition metal complex-based probes not only significantly widens the scope of bioorthogonal labeling but also further highlights the unique advantages of these complexes in the design of theranostic reagents. The development of these innovative reagents is expected to contribute to the basic understanding of biological processes in living systems and provide exciting opportunities for new diagnostic and therapeutic applications.
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Affiliation(s)
- Kenneth Kam-Wing Lo
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, P. R. China
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, P. R. China
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17
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Egyed A, Kormos A, Söveges B, Németh K, Kele P. Bioothogonally applicable, π-extended rhodamines for super-resolution microscopy imaging for intracellular proteins. Bioorg Med Chem 2020; 28:115218. [DOI: 10.1016/j.bmc.2019.115218] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 11/11/2019] [Accepted: 11/13/2019] [Indexed: 01/22/2023]
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18
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Cherepanov IA, Moiseev SK. Recent developments in the chemistry of sydnones and sydnone imines. ADVANCES IN HETEROCYCLIC CHEMISTRY 2020. [DOI: 10.1016/bs.aihch.2019.11.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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19
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Zhilin ES, Bystrov DM, Ananyev IV, Fershtat LL, Makhova NN. Straightforward Access to the Nitric Oxide Donor Azasydnone Scaffold by Cascade Reactions of Amines. Chemistry 2019; 25:14284-14289. [DOI: 10.1002/chem.201903526] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Egor S. Zhilin
- N. D. Zelinsky Institute of Organic ChemistryRussian Academy of Sciences Leninsky Prospect 47 119991 Moscow Russia
| | - Dmitry M. Bystrov
- N. D. Zelinsky Institute of Organic ChemistryRussian Academy of Sciences Leninsky Prospect 47 119991 Moscow Russia
| | - Ivan V. Ananyev
- A. N. Nesmeyanov Institute of Organoelement CompoundsRussian Academy of Sciences Vavilova str. 28 119991 Moscow Russia
| | - Leonid L. Fershtat
- N. D. Zelinsky Institute of Organic ChemistryRussian Academy of Sciences Leninsky Prospect 47 119991 Moscow Russia
| | - Nina N. Makhova
- N. D. Zelinsky Institute of Organic ChemistryRussian Academy of Sciences Leninsky Prospect 47 119991 Moscow Russia
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20
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21
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Mayerthaler F, Finley MF, Pfeifer TA, Antolin AA. Meeting Proceedings from ICBS 2018- Toward Translational Impact. ACS Chem Biol 2019; 14:567-578. [PMID: 30860357 DOI: 10.1021/acschembio.9b00169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Florian Mayerthaler
- Institute of Biochemistry, Department of Chemistry and Pharmacy, University of Münster, Münster, Germany
| | - Michael F. Finley
- Janssen Research & Development, Spring House, Pennsylvania 19477, United States
| | - Tom A. Pfeifer
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, Canada V6T 1Z3
| | - Albert A. Antolin
- The Department of Data Science, The Institute of Cancer Research, London, SM2 5NG, United Kingdom
- The Cancer Research UK Cancer Therapeutics Unit, The Institute of Cancer Research, London, SM2 5NG, United Kingdom
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22
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Kumbar M, Shaikh SKJ, Kamble RR, Bayannavar PK, Kamble AA, Hunnur RK. Serendipitous Formation of 2 H-Pyrazolo[3,4- d]pyridazin-7(6 H)-ones from 3-Arylsydnones. ACS OMEGA 2019; 4:4955-4962. [PMID: 31459679 PMCID: PMC6647958 DOI: 10.1021/acsomega.8b02013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 02/01/2019] [Indexed: 06/10/2023]
Abstract
Fused nitrogen heterocyclesnamely, pyrazolo[3,4-d]pyridazin-7(6H)-ones have been obtained by exploiting the 1,3-dipolar nature of N-arylsydnones, from hydrazones of 3-aryl-4-acetylsydnones via the Vilsmeier-Haack strategy. Facile intramolecular nucleophilic addition followed by CO2 elimination under reflux or upon microwave irradiation was presented. Plausible mechanisms for the formation of the title compounds are proffered. Structure confirmatory evidence came from single-crystal X-ray crystallography.
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Affiliation(s)
- Mahadev
N. Kumbar
- Department
of Chemistry, Karnatak University, Dharwad 580003, Karnataka, India
| | | | - Ravindra R. Kamble
- Department
of Chemistry, Karnatak University, Dharwad 580003, Karnataka, India
| | | | - Atulkumar A. Kamble
- Department
of Chemistry, Karnatak University, Dharwad 580003, Karnataka, India
| | - Raveendra K. Hunnur
- APL
Research Centre (a division of Aurobindo Pharma Ltd.
313), Batchupally, Hyderabad 500 072, India
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23
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Chinoy ZS, Bodineau C, Favre C, Moremen KW, Durán RV, Friscourt F. Selective Engineering of Linkage-Specific α2,6-N-Linked Sialoproteins Using Sydnone-Modified Sialic Acid Bioorthogonal Reporters. Angew Chem Int Ed Engl 2019; 58:4281-4285. [PMID: 30706985 PMCID: PMC6450558 DOI: 10.1002/anie.201814266] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 01/12/2019] [Indexed: 02/02/2023]
Abstract
The metabolic oligosaccharide engineering (MOE) strategy using unnatural sialic acids has recently enabled the visualization of the sialome in living systems. However, MOE only reports on global sialylation and dissected information regarding subsets of sialosides is missing. Described here is the synthesis and utilization of sialic acids modified with a sydnone reporter for the metabolic labeling of sialoconjugates. The positioning of the reporter on the sugar significantly altered its metabolic fate. Further in vitro enzymatic assays revealed that the 9-modified neuraminic acid is preferentially accepted by the sialyltransferase ST6Gal-I over ST3Gal-IV, leading to the favored incorporation of the reporter into linkage-specific α2,6-N-linked sialoproteins. This sydnone sugar presents the possibility of investigating the roles of specific sialosides.
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Affiliation(s)
- Zoeisha S. Chinoy
- Institut Européen de Chimie et Biologie, Université de Bordeaux, 2 rue Robert Escarpit, 33607 Pessac, France
- Institut de Neurosciences Cognitives et Intégratives d’Aquitaine, CNRS UMR5287, Bordeaux, France
| | - Clément Bodineau
- Institut Européen de Chimie et Biologie, Université de Bordeaux, 2 rue Robert Escarpit, 33607 Pessac, France
- Institut Bergonié, INSERM U1218, Bordeaux, France
| | - Camille Favre
- Institut Européen de Chimie et Biologie, Université de Bordeaux, 2 rue Robert Escarpit, 33607 Pessac, France
- Institut de Neurosciences Cognitives et Intégratives d’Aquitaine, CNRS UMR5287, Bordeaux, France
| | - Kelley W. Moremen
- Department of Biochemistry and Molecular Biology, University of Georgia, Athens, GA USA
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA USA
| | - Raúl V. Durán
- Institut Européen de Chimie et Biologie, Université de Bordeaux, 2 rue Robert Escarpit, 33607 Pessac, France
- Institut Bergonié, INSERM U1218, Bordeaux, France
- Current address: Centro Andaluz de Biología Molecular y Medicina Regenerativa, Consejo Superior de Investigaciones Científicas - Universidad de Sevilla - Universidad Pablo de Olavide, Avda. Américo Vespucio 24, 41092 Seville, Spain
| | - Frédéric Friscourt
- Institut Européen de Chimie et Biologie, Université de Bordeaux, 2 rue Robert Escarpit, 33607 Pessac, France
- Institut de Neurosciences Cognitives et Intégratives d’Aquitaine, CNRS UMR5287, Bordeaux, France
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24
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Selective Engineering of Linkage‐Specific α2,6‐
N
‐Linked Sialoproteins Using Sydnone‐Modified Sialic Acid Bioorthogonal Reporters. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814266] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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25
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Zhang X, Wu X, Jiang S, Gao J, Yao Z, Deng J, Zhang L, Yu Z. Photo-accelerated “click” reaction between diarylsydnones and ring-strained alkynes for bioorthogonal ligation. Chem Commun (Camb) 2019; 55:7187-7190. [DOI: 10.1039/c9cc02882j] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel photo-click ligation reaction between diarylsydnones and ring-strained alkynes, exhibiting decent bioorthogonality, was established under 405 nm light irradiation.
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Affiliation(s)
- Xiaocui Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu (610064)
- China
| | - Xueting Wu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu (610064)
- China
| | - Shichao Jiang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu (610064)
- China
| | - Jingshuo Gao
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu (610064)
- China
| | - Zhuojun Yao
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu (610064)
- China
| | - Jiajie Deng
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu (610064)
- China
| | - Linmeng Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu (610064)
- China
| | - Zhipeng Yu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu (610064)
- China
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26
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Yao Z, Wu X, Zhang X, Xiong Q, Jiang S, Yu Z. Synthesis and evaluation of photo-activatable β-diarylsydnone-l-alanines for fluorogenic photo-click cyclization of peptides. Org Biomol Chem 2019; 17:6777-6781. [DOI: 10.1039/c9ob00898e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
β-Diarylsydnone-l-alanines were designed and introduced into peptides allowing photo-cyclization only in phosphate containing buffer with concomitant fluorescence generation in live cells.
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Affiliation(s)
- Zhuojun Yao
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Xueting Wu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Xiaocui Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Qin Xiong
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Shichao Jiang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Zhipeng Yu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
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27
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Lee LC, Cheung HM, Liu H, Lo KK. Exploitation of Environment‐Sensitive Luminophores in the Design of Sydnone‐Based Bioorthogonal Imaging Reagents. Chemistry 2018; 24:14064-14068. [DOI: 10.1002/chem.201803452] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 07/10/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Lawrence Cho‐Cheung Lee
- Department of ChemistryCity University of Hong Kong Tat Chee Avenue Kowloon, Hong Kong P. R. China
| | - Hugo Man‐Hin Cheung
- Department of ChemistryCity University of Hong Kong Tat Chee Avenue Kowloon, Hong Kong P. R. China
| | - Hua‐Wei Liu
- Department of ChemistryCity University of Hong Kong Tat Chee Avenue Kowloon, Hong Kong P. R. China
| | - Kenneth Kam‐Wing Lo
- Department of ChemistryCity University of Hong Kong Tat Chee Avenue Kowloon, Hong Kong P. R. China
- State Key Laboratory of Millimeter WavesCity University of Hong Kong Tat Chee Avenue Kowloon, Hong Kong P. R. China
- Center of Functional PhotonicsCity University of Hong Kong Tat Chee Avenue Kowloon, Hong Kong P. R. China
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28
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Romney DK, Arnold FH, Lipshutz BH, Li CJ. Chemistry Takes a Bath: Reactions in Aqueous Media. J Org Chem 2018; 83:7319-7322. [DOI: 10.1021/acs.joc.8b01412] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- David K. Romney
- Division of Chemistry and Chemical Engineering, California Institute of Technology
| | - Frances H. Arnold
- Division of Chemistry and Chemical Engineering, California Institute of Technology
| | - Bruce H. Lipshutz
- Department of Chemistry & Biochemistry, University of California, Santa Barbara
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29
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Favre C, Friscourt F. Fluorogenic Sydnone-Modified Coumarins Switched-On by Copper-Free Click Chemistry. Org Lett 2018; 20:4213-4217. [PMID: 29995429 DOI: 10.1021/acs.orglett.8b01587] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis, photophysical characterization, and biochemical application of sydnone-modified coumarins, a novel class of fluorogenic clickable reagents, are reported. The sydnone moiety, a stable aromatic 1,3-dipole, efficiently quenched the fluorescence of coumarin, which could be restored, with a 132-fold enhancement, upon cycloadditions with cyclooctynes, thereby expanding the fluorogenic click toolbox. TD-DFT calculations suggest that the fluorescence quenching of the sydnone-modified coumarins is likely due to the presence of an energetically low-lying nonemissive charge-separated state.
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Affiliation(s)
- Camille Favre
- Institut Européen de Chimie et Biologie , Université de Bordeaux , 2 rue Robert Escarpit , 33607 Pessac , France.,Institut de Neurosciences Cognitives et Intégratives d'Aquitaine , CNRS UMR5287 , Bordeaux , France
| | - Frédéric Friscourt
- Institut Européen de Chimie et Biologie , Université de Bordeaux , 2 rue Robert Escarpit , 33607 Pessac , France.,Institut de Neurosciences Cognitives et Intégratives d'Aquitaine , CNRS UMR5287 , Bordeaux , France
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30
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Tao H, Liu F, Zeng R, Shao Z, Zou L, Cao Y, Murphy JM, Houk KN, Liang Y. Origins of halogen effects in bioorthogonal sydnone cycloadditions. Chem Commun (Camb) 2018; 54:5082-5085. [PMID: 29707720 PMCID: PMC5953849 DOI: 10.1039/c8cc02128g] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Halogen substituents increase sydnone cycloaddition reactivities substantially. Fluoro-sydnones are superior to bromo- and chloro-sydnones, and can achieve extremely high second-order rate constants with strained alkynes. Computational studies have revealed the fluorine substituent increases the reactivity of sydnone mainly by lowering its distortion energy.
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Affiliation(s)
- Huimin Tao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
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31
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de la Concepción JG, Ávalos M, Cintas P, Jiménez JL. Computational Screening of New Orthogonal Metal-Free Dipolar Cycloadditions of Mesomeric Betaines. Chemistry 2018. [PMID: 29534312 DOI: 10.1002/chem.201800869] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Computational strategies have gained increasing impact in the de novo design of large molecular sets targeted to a desired application. Herein, DFT-assisted theoretical analyses of cycloadditions, involving mesoionic dipoles and strained cycloalkynes, unveil a series of unexplored mesomeric betaines as vastly superior candidates for orthogonal applications. Thus, isosydnones; thiosydnones; and a six-membered homolog, 6-oxo-1,3-oxazinium-4-olate, exhibit enhanced reactivity with respect to sydnone, which is the archetypal mesoionic ring employed so far in orthogonal chemistry. These compounds were found by assessing energy barriers and transition structures, which are largely governed by electron fluxes from dipolarophile to dipole and noncovalent interactions. Charge-transfer analysis also accounts for previous experimental and theoretical results gathered in the literature, and provides a rationale for further substitution variations. The above naked dipoles release only CO2 as a byproduct through retro-Diels-Alder of the resulting cycloadducts. These results should invite practitioners to look at such underestimated dipoles and could also help to minimize the number of experiments.
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Affiliation(s)
- Juan García de la Concepción
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencias, Universidad de Extremadura, Avenida de Elvas S/N, Badajoz, 06006, Spain
| | - Martín Ávalos
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencias, Universidad de Extremadura, Avenida de Elvas S/N, Badajoz, 06006, Spain
| | - Pedro Cintas
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencias, Universidad de Extremadura, Avenida de Elvas S/N, Badajoz, 06006, Spain
| | - José Luis Jiménez
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencias, Universidad de Extremadura, Avenida de Elvas S/N, Badajoz, 06006, Spain
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32
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Almendros P, Yanai H, Hoshikawa S, Aragoncillo C, Lázaro-Milla C, Toledano-Pinedo M, Matsumoto T, Alcaide B. Transition metal-free controlled synthesis of bis[(trifluoromethyl)sulfonyl]ethyl-decorated heterocycles. Org Chem Front 2018. [DOI: 10.1039/c8qo00955d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The metal- and irradiation-free C–H bis(triflyl)ethylation reactions of a variety of heterocycles including marketed drugs have been accomplished.
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Affiliation(s)
- Pedro Almendros
- Instituto de Química Orgánica General
- Consejo Superior de Investigaciones Científicas
- IQOG-CSIC
- 28006 Madrid
- Spain
| | - Hikaru Yanai
- School of Pharmacy
- Tokyo University of Pharmacy and Life Sciences
- Tokyo 192-0392
- Japan
| | - Shoki Hoshikawa
- School of Pharmacy
- Tokyo University of Pharmacy and Life Sciences
- Tokyo 192-0392
- Japan
| | - Cristina Aragoncillo
- Grupo de Lactamas y Heterociclos Bioactivos
- Departamento de Química Orgánica I
- Unidad Asociada al CSIC
- Facultad de Química
- Universidad Complutense de Madrid
| | - Carlos Lázaro-Milla
- Grupo de Lactamas y Heterociclos Bioactivos
- Departamento de Química Orgánica I
- Unidad Asociada al CSIC
- Facultad de Química
- Universidad Complutense de Madrid
| | - Mireia Toledano-Pinedo
- Grupo de Lactamas y Heterociclos Bioactivos
- Departamento de Química Orgánica I
- Unidad Asociada al CSIC
- Facultad de Química
- Universidad Complutense de Madrid
| | - Takashi Matsumoto
- School of Pharmacy
- Tokyo University of Pharmacy and Life Sciences
- Tokyo 192-0392
- Japan
| | - Benito Alcaide
- Grupo de Lactamas y Heterociclos Bioactivos
- Departamento de Química Orgánica I
- Unidad Asociada al CSIC
- Facultad de Química
- Universidad Complutense de Madrid
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