1
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Porter J, Parisi D, Miller T, Cheallaigh AN, Miller GJ. Chemical synthesis of amphiphilic glycoconjugates: Access to amino, fluorinated and sulfhydryl oleyl glucosides. Carbohydr Res 2023; 530:108854. [PMID: 37329646 DOI: 10.1016/j.carres.2023.108854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/23/2023] [Accepted: 05/23/2023] [Indexed: 06/19/2023]
Abstract
Amphiphilic glycoconjugates offer an important prospect for development as chemical biology tools and biosurfactants. The chemical synthesis of such materials is required to expedite such prospect, compounded by the example of oleyl glycosides. Herein, we report a mild and reliable glycosylation method to access oleyl glucosides, glycosidating oleyl alcohol with α-trichloroacetimidate donors. We demonstrate capability for this methodology, extending it to synthesise the first examples of pyranose-component fluorination and sulfhydryl modifications within glucosides and glucosamines of oleyl alcohol. These compounds provide an exciting series of tools to explore processes and materials that utilise oleyl glycosides, including as probes for glycosphingolipid metabolism.
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Affiliation(s)
- Jack Porter
- Centre for Glycoscience, Keele University, Keele, Staffordshire, ST5 5BG, UK; Lennard-Jones Laboratory, School of Chemical and Physical Sciences, Keele University, Keele, Staffordshire, ST5 5BG, UK
| | - Daniele Parisi
- Croda Europe Ltd., Oak Road, Clough Road, Hull, HU6 7PH, UK
| | - Timothy Miller
- Croda Europe Ltd., Oak Road, Clough Road, Hull, HU6 7PH, UK
| | - Aisling Ní Cheallaigh
- Centre for Glycoscience, Keele University, Keele, Staffordshire, ST5 5BG, UK; Lennard-Jones Laboratory, School of Chemical and Physical Sciences, Keele University, Keele, Staffordshire, ST5 5BG, UK
| | - Gavin J Miller
- Centre for Glycoscience, Keele University, Keele, Staffordshire, ST5 5BG, UK; Lennard-Jones Laboratory, School of Chemical and Physical Sciences, Keele University, Keele, Staffordshire, ST5 5BG, UK.
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2
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Li D, Wang J, Wang X, Qiao Z, Wang L, Wang P, Song N, Li M. β-Glycosylations with 2-Deoxy-2-(2,4-dinitrobenzenesulfonyl)-amino-glucosyl/galactosyl Selenoglycosides: Assembly of Partially N-Acetylated β-(1 → 6)-Oligoglucosaminosides. J Org Chem 2023; 88:9004-9025. [PMID: 37306475 DOI: 10.1021/acs.joc.3c00725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
An efficient protocol has been established for β-glycosylations with 2-deoxy-2-(2,4-dinitrobenzenesulfonyl)amino (2dDNsNH)-glucopyranosyl/galactopyranosyl selenoglycosides using PhSeCl/AgOTf as an activating system. The reaction features highly β-selective glycosylation with a wide range of alcohol acceptors that are either sterically hindered or poorly nucleophilic. Thioglycoside- and selenoglycoside-based alcohols prove to be viable nucleophiles, opening up new opportunities for one-pot construction of oligosaccharides. The power of this approach is highlighted by the efficient assembly of tri-, hexa-, and nonasaccharides composed of β-(1 → 6)-glucosaminosyl residues based on one-pot preparation of a triglucosaminosyl thioglycoside with DNs, phthaloyl, and 2,2,2-trichloroethoxycarbonyl as the protecting groups of amino groups. These glycans are potential antigens for developing glycoconjugate vaccines against microbial infections.
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Affiliation(s)
- Dongwei Li
- Molecular Synthesis Center, Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Jianjun Wang
- Molecular Synthesis Center, Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Xianyang Wang
- Molecular Synthesis Center, Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Zhi Qiao
- Molecular Synthesis Center, Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Lingjun Wang
- Molecular Synthesis Center, Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Peng Wang
- Molecular Synthesis Center, Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Ni Song
- Molecular Synthesis Center, Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Ming Li
- Molecular Synthesis Center, Key Laboratory of Marine Medicine, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Shandong Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
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3
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Abstract
![]()
Fluorinated
carbohydrates have found many applications in the glycosciences.
Typically, these contain fluorination at a single position. There
are not many applications involving polyfluorinated carbohydrates,
here defined as monosaccharides in which more than one carbon has
at least one fluorine substituent directly attached to it, with the
notable exception of their use as mechanism-based inhibitors. The
increasing attention to carbohydrate physical properties, especially
around lipophilicity, has resulted in a surge of interest for this
class of compounds. This review covers the considerable body of work
toward the synthesis of polyfluorinated hexoses, pentoses, ketosugars,
and aminosugars including sialic acids and nucleosides. An overview
of the current state of the art of their glycosidation is also provided.
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Affiliation(s)
- Kler Huonnic
- School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, U.K
| | - Bruno Linclau
- School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, U.K.,Department of Organic and Macromolecular Chemistry, Ghent University, Campus Sterre, Krijgslaan 281-S4, Ghent, 9000, Belgium
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Fittolani G, Djalali S, Chaube MA, Tyrikos-Ergas T, Dal Colle MCS, Grafmüller A, Seeberger PH, Delbianco M. Deoxyfluorination tunes the aggregation of cellulose and chitin oligosaccharides and highlights the role of specific hydroxyl groups in the crystallization process. Org Biomol Chem 2022; 20:8228-8235. [DOI: 10.1039/d2ob01601j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Using synthetic oligosaccharides, we examined how deoxyfluorination (site and pattern) impact the solubility and aggregation of cellulose and chitin oligomers.
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Affiliation(s)
- Giulio Fittolani
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Surusch Djalali
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Manishkumar A. Chaube
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Theodore Tyrikos-Ergas
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Marlene C. S. Dal Colle
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Andrea Grafmüller
- Department of Theory and Biosystems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Peter H. Seeberger
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Martina Delbianco
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
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5
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Hamala V, Červenková Šťastná L, Kurfiřt M, Cuřínová P, Dračínský M, Karban J. Synthesis of multiply fluorinated N-acetyl-D-glucosamine and D-galactosamine analogs via the corresponding deoxyfluorinated glucosazide and galactosazide phenyl thioglycosides. Beilstein J Org Chem 2021; 17:1086-1095. [PMID: 34093878 PMCID: PMC8144920 DOI: 10.3762/bjoc.17.85] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 04/27/2021] [Indexed: 11/23/2022] Open
Abstract
Multiple fluorination of glycostructures has emerged as an attractive way of modulating their protein affinity, metabolic stability, and lipophilicity. Here we described the synthesis of a series of mono-, di- and trifluorinated N-acetyl-ᴅ-glucosamine and ᴅ-galactosamine analogs. The key intermediates are the corresponding multiply fluorinated glucosazide and galactosazide thioglycosides prepared from deoxyfluorinated 1,6-anhydro-2-azido-β-ᴅ-hexopyranose precursors by ring-opening reaction with phenyl trimethylsilyl sulfide. Nucleophilic deoxyfluorination at C4 and C6 by reaction with DAST, thioglycoside hydrolysis and azide/acetamide transformation completed the synthesis.
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Affiliation(s)
- Vojtěch Hamala
- Department of Bioorganic Compounds and Nanocomposites, Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135, 16502 Praha 6, Czech Republic
- University of Chemistry and Technology Prague, Technická 5, 16628 Praha 6, Czech Republic
| | - Lucie Červenková Šťastná
- Department of Bioorganic Compounds and Nanocomposites, Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135, 16502 Praha 6, Czech Republic
| | - Martin Kurfiřt
- Department of Bioorganic Compounds and Nanocomposites, Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135, 16502 Praha 6, Czech Republic
- University of Chemistry and Technology Prague, Technická 5, 16628 Praha 6, Czech Republic
| | - Petra Cuřínová
- Department of Bioorganic Compounds and Nanocomposites, Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135, 16502 Praha 6, Czech Republic
| | - Martin Dračínský
- NMR Spectroscopy group, Institute of Organic Chemistry and Biochemistry of the CAS, Flemingovo náměstí 542/2, 16000 Praha, Czech Republic
| | - Jindřich Karban
- Department of Bioorganic Compounds and Nanocomposites, Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135, 16502 Praha 6, Czech Republic
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6
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Hamala V, Červenková Šťastná L, Kurfiřt M, Cuřínová P, Balouch M, Hrstka R, Voňka P, Karban J. The effect of deoxyfluorination and O-acylation on the cytotoxicity of N-acetyl-D-gluco- and D-galactosamine hemiacetals. Org Biomol Chem 2021; 19:4497-4506. [PMID: 33949602 DOI: 10.1039/d1ob00497b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fully acetylated deoxyfluorinated hexosamine analogues and non-fluorinated 3,4,6-tri-O-acylated N-acetyl-hexosamine hemiacetals have previously been shown to display moderate anti-proliferative activity. We prepared a set of deoxyfluorinated GlcNAc and GalNAc hemiacetals that comprised both features: O-acylation at the non-anomeric positions with an acetyl, propionyl and butanoyl group, and deoxyfluorination at selected positions. Determination of the in vitro cytotoxicity towards the MDA-MB-231 breast cancer and HEK-293 cell lines showed that deoxyfluorination enhanced cytotoxicity in most analogues. Increasing the ester alkyl chain length had a variable effect on the cytotoxicity of fluoro analogues, which contrasted with non-fluorinated hemiacetals where butanoyl derivatives had always higher cytotoxicity than acetates. Reaction with 2-phenylethanethiol indicated that the recently described S-glyco-modification is an unlikely cause of cytotoxicity.
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Affiliation(s)
- Vojtěch Hamala
- Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135, 16502 Praha 6, Czech Republic. and University of Chemistry and Technology Prague, Technická 5, 16628 Praha 6, Czech Republic
| | - Lucie Červenková Šťastná
- Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135, 16502 Praha 6, Czech Republic.
| | - Martin Kurfiřt
- Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135, 16502 Praha 6, Czech Republic. and University of Chemistry and Technology Prague, Technická 5, 16628 Praha 6, Czech Republic
| | - Petra Cuřínová
- Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135, 16502 Praha 6, Czech Republic.
| | - Martin Balouch
- Department of Chemical Engineering, University of Chemistry and Technology, Technická 3, 166 28 Prague 6, Prague, Czech Republic
| | - Roman Hrstka
- Research Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, žlutý kopec 7, Brno, 65653, Czech Republic
| | - Petr Voňka
- Research Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, žlutý kopec 7, Brno, 65653, Czech Republic
| | - Jindřich Karban
- Institute of Chemical Process Fundamentals of the CAS, v. v. i., Rozvojová 135, 16502 Praha 6, Czech Republic.
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7
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Govindarajan M. Protecting group migrations in carbohydrate chemistry. Carbohydr Res 2020; 497:108151. [PMID: 32977215 DOI: 10.1016/j.carres.2020.108151] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 09/06/2020] [Accepted: 09/08/2020] [Indexed: 11/22/2022]
Abstract
Protecting groups are valuable in chemo- and regioselective synthetic manipulations. In particular, they are indispensable in carbohydrate chemistry. Although a wide array of protecting groups are available at the disposal of carbohydrate chemists, their stability and orthogonality make the choice of protecting groups challenging. Another important factor is the migratory aptitude of different protecting groups used in carbohydrate chemistry. Migration of commonly used groups like silyl, acetal and acyl groups under various reaction conditions are discussed. Synthetic application of predicted migrations, alternate protecting groups to avoid migration and conditions favoring and disfavoring migrations are discussed in this review.
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8
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Hamala V, Červenková Šťastná L, Kurfiřt M, Cuřínová P, Dračínský M, Karban J. Use of remote acyl groups for stereoselective 1,2-cis-glycosylation with fluorinated glucosazide thiodonors. Org Biomol Chem 2020; 18:5427-5434. [DOI: 10.1039/d0ob01065k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Introducing remote O-acyl protecting groups enabled 1,2-cis stereoselective glycosylation with fluorinated glucosazide glycosyl donors.
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Affiliation(s)
- Vojtěch Hamala
- Institute of Chemical Process Fundamentals of the CAS
- 16502 Praha 6
- Czech Republic
- University of Chemistry and Technology Prague
- 16628 Praha 6
| | | | - Martin Kurfiřt
- Institute of Chemical Process Fundamentals of the CAS
- 16502 Praha 6
- Czech Republic
- University of Chemistry and Technology Prague
- 16628 Praha 6
| | - Petra Cuřínová
- Institute of Chemical Process Fundamentals of the CAS
- 16502 Praha 6
- Czech Republic
| | - Martin Dračínský
- Institute of Organic Chemistry and Biochemistry of the CAS
- Praha 6
- Czech Republic
| | - Jindřich Karban
- Institute of Chemical Process Fundamentals of the CAS
- 16502 Praha 6
- Czech Republic
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9
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Denavit V, Lainé D, Bouzriba C, Shanina E, Gillon É, Fortin S, Rademacher C, Imberty A, Giguère D. Stereoselective Synthesis of Fluorinated Galactopyranosides as Potential Molecular Probes for Galactophilic Proteins: Assessment of Monofluorogalactoside-LecA Interactions. Chemistry 2019; 25:4478-4490. [PMID: 30690814 DOI: 10.1002/chem.201806197] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Indexed: 11/07/2022]
Abstract
The replacement of hydroxyl groups by fluorine atoms on hexopyranoside scaffolds may allow access to invaluable tools for studying various biochemical processes. As part of ongoing activities toward the preparation of fluorinated carbohydrates, a systematic investigation involving the synthesis and biological evaluation of a series of mono- and polyfluorinated galactopyranosides is described. Various monofluorogalactopyranosides, a trifluorinated, and a tetrafluorinated galactopyranoside have been prepared using a Chiron approach. Given the scarcity of these compounds in the literature, in addition to their synthesis, their biological profiles were evaluated. Firstly, the fluorinated compounds were investigated as antiproliferative agents using normal human and mouse cells in comparison with cancerous cells. Most of the fluorinated compounds showed no antiproliferative activity. Secondly, these carbohydrate probes were used as potential inhibitors of galactophilic lectins. The first transverse relaxation-optimized spectroscopy (TROSY) NMR experiments were performed on these interactions, examining chemical shift perturbations of the backbone resonances of LecA, a virulence factor from Pseudomonas aeruginosa. Moreover, taking advantage of the fluorine atom, the 19 F NMR resonances of the monofluorogalactopyranosides were directly monitored in the presence and absence of LecA to assess ligand binding. Lastly, these results were corroborated with the binding potencies of the monofluorinated galactopyranoside derivatives by isothermal titration calorimetry experiments. Analogues with fluorine atoms at C-3 and C-4 showed weaker affinities with LecA as compared to those with the fluorine atom at C-2 or C-6. This research has focused on the chemical synthesis of "drug-like" low-molecular-weight inhibitors that circumvent drawbacks typically associated with natural oligosaccharides.
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Affiliation(s)
- Vincent Denavit
- Département de Chimie, PROTEO, RQRM, Université Laval, 1045 Avenue de la Médecine, Quebec City, QC, G1V 0A6, Canada
| | - Danny Lainé
- Département de Chimie, PROTEO, RQRM, Université Laval, 1045 Avenue de la Médecine, Quebec City, QC, G1V 0A6, Canada
| | - Chahrazed Bouzriba
- Oncology Division, Hôpital Saint-François d'Assise, CHU de Québec-Université Laval Research Center, 10 rue de l'Espinay, Quebec City, QC, G1L 3L5, Canada
- Faculté de Pharmacie, Université Laval, Quebec City, QC, G1V 0A6, Canada
| | - Elena Shanina
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14424, Potsdam, Germany
| | - Émilie Gillon
- Univ. Grenoble Alpes, CNRS, CERMAV, 38000, Grenoble, France
| | - Sébastien Fortin
- Oncology Division, Hôpital Saint-François d'Assise, CHU de Québec-Université Laval Research Center, 10 rue de l'Espinay, Quebec City, QC, G1L 3L5, Canada
- Faculté de Pharmacie, Université Laval, Quebec City, QC, G1V 0A6, Canada
| | - Christoph Rademacher
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14424, Potsdam, Germany
| | - Anne Imberty
- Univ. Grenoble Alpes, CNRS, CERMAV, 38000, Grenoble, France
| | - Denis Giguère
- Département de Chimie, PROTEO, RQRM, Université Laval, 1045 Avenue de la Médecine, Quebec City, QC, G1V 0A6, Canada
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Willén D, Bengtsson D, Clementson S, Tykesson E, Manner S, Ellervik U. Synthesis of Double-Modified Xyloside Analogues for Probing the β4GalT7 Active Site. J Org Chem 2018; 83:1259-1277. [DOI: 10.1021/acs.joc.7b02809] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daniel Willén
- Centre for Analysis and Synthesis,
Centre for Chemistry and Chemical Engineering, Lund University, P.O.
Box 124, SE-221 00 Lund, Sweden
| | - Dennis Bengtsson
- Centre for Analysis and Synthesis,
Centre for Chemistry and Chemical Engineering, Lund University, P.O.
Box 124, SE-221 00 Lund, Sweden
| | - Sebastian Clementson
- Centre for Analysis and Synthesis,
Centre for Chemistry and Chemical Engineering, Lund University, P.O.
Box 124, SE-221 00 Lund, Sweden
| | - Emil Tykesson
- Centre for Analysis and Synthesis,
Centre for Chemistry and Chemical Engineering, Lund University, P.O.
Box 124, SE-221 00 Lund, Sweden
| | - Sophie Manner
- Centre for Analysis and Synthesis,
Centre for Chemistry and Chemical Engineering, Lund University, P.O.
Box 124, SE-221 00 Lund, Sweden
| | - Ulf Ellervik
- Centre for Analysis and Synthesis,
Centre for Chemistry and Chemical Engineering, Lund University, P.O.
Box 124, SE-221 00 Lund, Sweden
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Affiliation(s)
- Pier Alexandre Champagne
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Justine Desroches
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Jean-Denys Hamel
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Mathilde Vandamme
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Jean-François Paquin
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
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12
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Thvedt TH, Kaasa K, Sundby E, Charnock C, Hoff BH. Chiral N-benzyl-N-methyl-1-(naphthalen-1-yl)ethanamines and their in vitro antifungal activity against Cryptococcus neoformans, Trichophyton mentagrophytes and Trichophyton rubrum. Eur J Med Chem 2013; 68:482-96. [PMID: 24051242 DOI: 10.1016/j.ejmech.2013.07.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 06/14/2013] [Accepted: 07/04/2013] [Indexed: 11/21/2022]
Abstract
In the search for new antifungal compounds and to explore structure activity relationships, a series of 24 chiral benzyl amine type antifungals was synthesised and characterised. In vitro testing against the human pathogen Cryptococcus neoformans revealed that several derivatives had MIC50 values similar to that of the commercial drug Butenafine. All of these contained a bulky group in the para position of the benzyl fragment. Eighteen compounds were also tested for activity against the dermatophytes Trichophyton mentagrophytes and Trichophyton rubrum. Of these (R)-N-(4-tert-butylbenzyl)-N-methyl-1-(naphthalen-1-yl)ethanamine (MIC50: 0.06 μg/mL) and a para-benzyloxy substituted derivative (MIC50: 0.125 μg/mL) possessed high activity. Testing of derivatives with a stereocentre at the benzylic carbon, revealed that (S)-stereochemistry was required for potency: a MIC50 value of 1 μg/mL was obtained for (S)-1-(4-tert-butylphenyl)-N-methyl-N-(naphthalen-1-ylmethyl)ethanamine. Preparation of the corresponding fluoromethyl compound was achieved employing lipase B from Candida antarctica as catalyst in the key step. A low antifungal activity was observed for the fluorinated derivative indicating the importance of the amine basicity for the antifungal potency of these compounds.
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13
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Herczeg M, Mező E, Eszenyi D, Lázár L, Csávás M, Bereczki I, Antus S, Borbás A. Synthesis of 6-Sulfonatomethyl Thioglycosides by Nucleophilic Substitution: Methods to Prevent 1→6 Anomeric Group Migration of Thioglycoside 6-O-Triflates. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300681] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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15
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Mukherjee S, Tripathi PN, Mandal SB. Allyloxy and Propargyloxy Group Migration: Role of Remote Group Participation in the Synthesis of 5-C-Nucleosides and Other Sugar Derivatives. Org Lett 2012; 14:4186-9. [DOI: 10.1021/ol301851q] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Subhrangshu Mukherjee
- Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Prabhash N. Tripathi
- Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Sukhendu B. Mandal
- Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
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Saha J, Peczuh MW. Expanding the Scope of Aminosugars: Synthesis of 2‐Amino Septanosyl Glycoconjugates Using Septanosyl Fluoride Donors. Chemistry 2011; 17:7357-65. [DOI: 10.1002/chem.201003721] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2010] [Revised: 03/21/2011] [Indexed: 01/25/2023]
Affiliation(s)
- Jaideep Saha
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, U‐3060, Storrs, CT 06269 (USA), Fax: (+1) 860‐486‐2981
| | - Mark W. Peczuh
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, U‐3060, Storrs, CT 06269 (USA), Fax: (+1) 860‐486‐2981
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Surmont R, Verniest G, De Groot A, Thuring JW, De Kimpe N. Morpholinosulfur Trifluoride (Morph-DAST)-Mediated Rearrangement in the Fluorination of Cyclic α,α-Dialkoxy Ketones toward 1,2-Dialkoxy-1,2-difluorinated Compounds. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000466] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Fuglseth E, Otterholt E, Høgmoen H, Sundby E, Charnock C, Hoff BH. Chiral derivatives of Butenafine and Terbinafine: synthesis and antifungal activity. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.09.067] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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López JC, Ventura J, Uriel C, Gómez AM, Fraser-Reid B. Reaction of 1,2-Orthoesters with HF−Pyridine: A Method for the Preparation of Partly Unprotected Glycosyl Fluorides and Their Use in Saccharide Synthesis. Org Lett 2009; 11:4128-31. [DOI: 10.1021/ol901630d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J. Cristóbal López
- Instituto de Química Orgánica General (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain, and Natural Products and Glycotechnology Research Institute Inc. (NPG), 595F Weathersfield Road, Pittsboro, North Carolina 27312
| | - Juan Ventura
- Instituto de Química Orgánica General (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain, and Natural Products and Glycotechnology Research Institute Inc. (NPG), 595F Weathersfield Road, Pittsboro, North Carolina 27312
| | - Clara Uriel
- Instituto de Química Orgánica General (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain, and Natural Products and Glycotechnology Research Institute Inc. (NPG), 595F Weathersfield Road, Pittsboro, North Carolina 27312
| | - Ana M. Gómez
- Instituto de Química Orgánica General (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain, and Natural Products and Glycotechnology Research Institute Inc. (NPG), 595F Weathersfield Road, Pittsboro, North Carolina 27312
| | - Bert Fraser-Reid
- Instituto de Química Orgánica General (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain, and Natural Products and Glycotechnology Research Institute Inc. (NPG), 595F Weathersfield Road, Pittsboro, North Carolina 27312
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