1
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Werner M, Pampel J, Pham TL, Thomas F. Late‐Stage Functionalisation of Peptides on the Solid Phase by an Iodination‐Substitution Approach. Chemistry 2022; 28:e202201339. [PMID: 35700354 PMCID: PMC9545490 DOI: 10.1002/chem.202201339] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Indexed: 11/20/2022]
Abstract
The functionalisation of peptides at a late synthesis stage holds great potential, for example, for the synthesis of peptide pharmaceuticals, fluorescent biosensors or peptidomimetics. Here we describe an on‐resin iodination‐substitution reaction sequence on homoserine that is also suitable for peptide modification in a combinatorial format. The reaction sequence is accessible to a wide range of sulfur nucleophiles with various functional groups including boronic acids, hydroxy groups or aromatic amines. In this way, methionine‐like thioethers or thioesters and thiosulfonates are accessible. Next to sulfur nucleophiles, selenols, pyridines and carboxylic acids were successfully used as nucleophiles, whereas phenols did not react. The late‐stage iodination‐substitution approach is not only applicable to short peptides but also to the more complex 34‐amino‐acid WW domains. We applied this strategy to introduce 7‐mercapto‐4‐methylcoumarin into a switchable ZnII responsive WW domain to design an iFRET‐based ZnII sensor.
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Affiliation(s)
- Marius Werner
- Institute of Organic Chemistry Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Centre for Advanced Materials (CAM) Heidelberg University Im Neuenheimer Feld 225 69120 Heidelberg Germany
- Department of Medicinal Chemistry Institute of Pharmacy and Molecular Biotechnology (IPMB) Heidelberg University Im Neuenheimer Feld 364 69120 Heidelberg Germany
| | - Julius Pampel
- Department of Chemical Biology Max Planck Institute for Medical Research Jahnstraße 29 69120 Heidelberg Germany
| | - Truc Lam Pham
- Institute of Organic Chemistry Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Centre for Advanced Materials (CAM) Heidelberg University Im Neuenheimer Feld 225 69120 Heidelberg Germany
| | - Franziska Thomas
- Institute of Organic Chemistry Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Centre for Advanced Materials (CAM) Heidelberg University Im Neuenheimer Feld 225 69120 Heidelberg Germany
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2
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Eszenyi D, Kelemen V, Balogh F, Bege M, Csávás M, Herczegh P, Borbás A. Promotion of a Reaction by Cooling: Stereoselective 1,2‐cis‐α‐Thioglycoconjugation by Thiol‐Ene Coupling at −80 °C. Chemistry 2018; 24:4532-4536. [DOI: 10.1002/chem.201800668] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Dániel Eszenyi
- Department of Pharmaceutical ChemistryUniversity of Debrecen Egyetem tér 1 4032 Debrecen Hungary
| | - Viktor Kelemen
- Department of Pharmaceutical ChemistryUniversity of Debrecen Egyetem tér 1 4032 Debrecen Hungary
| | - Fanny Balogh
- Department of Pharmaceutical ChemistryUniversity of Debrecen Egyetem tér 1 4032 Debrecen Hungary
| | - Miklós Bege
- Department of Pharmaceutical ChemistryUniversity of Debrecen Egyetem tér 1 4032 Debrecen Hungary
| | - Magdolna Csávás
- Department of Pharmaceutical ChemistryUniversity of Debrecen Egyetem tér 1 4032 Debrecen Hungary
| | - Pál Herczegh
- Department of Pharmaceutical ChemistryUniversity of Debrecen Egyetem tér 1 4032 Debrecen Hungary
| | - Anikó Borbás
- Department of Pharmaceutical ChemistryUniversity of Debrecen Egyetem tér 1 4032 Debrecen Hungary
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3
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Napiórkowska M, Boilevin J, Sovdat T, Darbre T, Reymond JL, Aebi M, Locher KP. Molecular basis of lipid-linked oligosaccharide recognition and processing by bacterial oligosaccharyltransferase. Nat Struct Mol Biol 2017; 24:1100-1106. [PMID: 29058712 DOI: 10.1038/nsmb.3491] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 09/21/2017] [Indexed: 11/09/2022]
Abstract
Oligosaccharyltransferase (OST) is a membrane-integral enzyme that catalyzes the transfer of glycans from lipid-linked oligosaccharides (LLOs) onto asparagine side chains, the first step in protein N-glycosylation. Here, we report the X-ray structure of a single-subunit OST, PglB from Campylobacter lari, trapped in an intermediate state bound to an acceptor peptide and a synthetic LLO analog. The structure reveals the role of the external loop EL5, present in all OST enzymes, in substrate recognition. Whereas the N-terminal half of EL5 binds LLO, the C-terminal half interacts with the acceptor peptide. The glycan moiety of LLO must thread under EL5 to access the active site. Reducing EL5 mobility decreases the catalytic rate of OST when full-size heptasaccharide LLO is provided, but not for a monosaccharide-containing LLO analog. Our results define the chemistry of a ternary complex state, assign functional roles to conserved OST motifs, and provide opportunities for glycoengineering by rational design of PglB.
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Affiliation(s)
- Maja Napiórkowska
- Institute of Molecular Biology and Biophysics, ETH Zurich, Zurich, Switzerland
| | - Jérémy Boilevin
- Department of Chemistry and Biochemistry, University of Berne, Berne, Switzerland
| | - Tina Sovdat
- Department of Chemistry and Biochemistry, University of Berne, Berne, Switzerland
| | - Tamis Darbre
- Department of Chemistry and Biochemistry, University of Berne, Berne, Switzerland
| | - Jean-Louis Reymond
- Department of Chemistry and Biochemistry, University of Berne, Berne, Switzerland
| | - Markus Aebi
- Institute of Microbiology, ETH Zurich, Zurich, Switzerland
| | - Kaspar P Locher
- Institute of Molecular Biology and Biophysics, ETH Zurich, Zurich, Switzerland
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4
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Aydillo C, Compañón I, Avenoza A, Busto JH, Corzana F, Peregrina JM, Zurbano MM. S-Michael additions to chiral dehydroalanines as an entry to glycosylated cysteines and a sulfa-Tn antigen mimic. J Am Chem Soc 2014; 136:789-800. [PMID: 24372047 DOI: 10.1021/ja411522f] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Stereoselective sulfa-Michael addition of appropriately protected thiocarbohydrates to chiral dehydroalanines has been developed as a key step in the synthesis of biologically important cysteine derivatives, such as S-(β-D-glucopyranosyl)-D-cysteine, which has not been synthesized to date, and S-(2-acetamido-2-deoxy-α-D-galactopyranosyl)-L-cysteine, which could be considered as a mimic of Tn antigen. The corresponding diamide derivative was also synthesized and analyzed from a conformational viewpoint, and its bound state with a lectin was studied.
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Affiliation(s)
- Carlos Aydillo
- Departamento de Química, Universidad de La Rioja , Centro de Investigación en Síntesis Química, E-26006 Logroño, Spain
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5
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Ichikawa Y, Minami T, Kusaba S, Saeki N, Tonegawa Y, Tomita Y, Nakano K, Kotsuki H, Masuda T. Protecting group free synthesis of urea-linked glycoconjugates: efficient synthesis of β-urea glycosides in aqueous solution. Org Biomol Chem 2014; 12:3924-31. [DOI: 10.1039/c3ob42452a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The one step process, involving reactions between urea and protecting group free d-glucose, N-acetyl-d-glucosamine or d-xylose in acidic aqueous solution, furnishes the corresponding β-urea glycosides.
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Affiliation(s)
| | | | - Shohei Kusaba
- Faculty of Science
- Kochi University
- Akebono-cho, Japan
| | | | - Yuta Tonegawa
- Faculty of Science
- Kochi University
- Akebono-cho, Japan
| | - Yumiko Tomita
- Faculty of Science
- Kochi University
- Akebono-cho, Japan
| | - Keiji Nakano
- Faculty of Science
- Kochi University
- Akebono-cho, Japan
| | | | - Toshiya Masuda
- Faculty of Integrated Arts and Sciences
- University of Tokushima
- Tokushima 770-8502, Japan
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6
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Lamprecht DA, Muneri NO, Eastwood H, Naidoo KJ, Strauss E, Jardine A. An enzyme-initiated Smiles rearrangement enables the development of an assay of MshB, the GlcNAc-Ins deacetylase of mycothiol biosynthesis. Org Biomol Chem 2012; 10:5278-88. [PMID: 22678300 DOI: 10.1039/c2ob25429h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
MshB is the N-acetyl-1-D-myo-inosityl-2-amino-2-deoxy-D-glucopyranoside (GlcNAc-Ins) deacetylase active as one of the enzymes involved in the biosynthesis of mycothiol (MSH), a protective low molecular weight thiol present only in Mycobacterium tuberculosis and other actinomycetes. In this study, structural analogues of GlcNAc-Ins in which the inosityl moiety is replaced by a chromophore were synthesized and evaluated as alternate substrates of MshB, with the goal of identifying a compound that would be useful in high-throughput assays of the enzyme. In an unexpected and surprising finding one of the GlcNAc-Ins analogues is shown to undergo a Smiles rearrangement upon MshB-mediated deacetylation, uncovering a free thiol group. We demonstrate that this chemistry can be exploited for the development of the first continuous assay of MshB activity based on the detection of thiol formation by DTNB (Ellman's reagent); such an assay should be ideally suited for the identification of MshB inhibitors by means of high-throughput screens in microplates.
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Affiliation(s)
- Dirk A Lamprecht
- Department of Biochemistry, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
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7
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Zhu X, Dere RT, Jiang J, Zhang L, Wang X. Synthesis of α-Glycosyl Thiols by Stereospecific Ring-Opening of 1,6-Anhydrosugars. J Org Chem 2011; 76:10187-97. [DOI: 10.1021/jo202069y] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiangming Zhu
- Centre for
Synthesis and Chemical Biology, UCD School of Chemistry and Chemical
Biology, University College Dublin, Belfield,
Dublin 4, Ireland
- College
of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Ravindra T. Dere
- Centre for
Synthesis and Chemical Biology, UCD School of Chemistry and Chemical
Biology, University College Dublin, Belfield,
Dublin 4, Ireland
| | - Junyan Jiang
- College
of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Lei Zhang
- College
of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Xiaoxia Wang
- College
of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China
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8
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Roytman R, Adler-Abramovich L, Kumar KSA, Kuan TC, Lin CC, Gazit E, Brik A. Exploring the self-assembly of glycopeptides using a diphenylalanine scaffold. Org Biomol Chem 2011; 9:5755-61. [DOI: 10.1039/c1ob05071k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Dorfmueller HC, Borodkin VS, Blair DE, Pathak S, Navratilova I, van Aalten DMF. Substrate and product analogues as human O-GlcNAc transferase inhibitors. Amino Acids 2010; 40:781-92. [PMID: 20640461 PMCID: PMC3040809 DOI: 10.1007/s00726-010-0688-y] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2010] [Accepted: 07/01/2010] [Indexed: 11/03/2022]
Abstract
Protein glycosylation on serine/threonine residues with N-acetylglucosamine (O-GlcNAc) is a dynamic, inducible and abundant post-translational modification. It is thought to regulate many cellular processes and there are examples of interplay between O-GlcNAc and protein phosphorylation. In metazoa, a single, highly conserved and essential gene encodes the O-GlcNAc transferase (OGT) that transfers GlcNAc onto substrate proteins using UDP-GlcNAc as the sugar donor. Specific inhibitors of human OGT would be useful tools to probe the role of this post-translational modification in regulating processes in the living cell. Here, we describe the synthesis of novel UDP-GlcNAc/UDP analogues and evaluate their inhibitory properties and structural binding modes in vitro alongside alloxan, a previously reported weak OGT inhibitor. While the novel analogues are not active on living cells, they inhibit the enzyme in the micromolar range and together with the structural data provide useful templates for further optimisation.
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Affiliation(s)
- Helge C Dorfmueller
- Division of Molecular Microbiology, College of Life Sciences, University of Dundee, Dundee, Scotland, UK
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10
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N-Acetylhexosaminidase inhibitory properties of C-1 homologated GlcNAc- and GalNAc-thiazolines. Bioorg Med Chem Lett 2008; 18:2944-7. [DOI: 10.1016/j.bmcl.2008.03.067] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2008] [Accepted: 03/24/2008] [Indexed: 11/17/2022]
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11
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Dere RT, Wang Y, Zhu X. A direct and stereospecific approach to the synthesis of α-glycosyl thiols. Org Biomol Chem 2008; 6:2061-3. [DOI: 10.1039/b804536d] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Metaferia BB, Fetterolf BJ, Shazad-ul-Hussan S, Moravec M, Smith JA, Ray S, Gutierrez-Lugo MT, Bewley CA. Synthesis of Natural Product-Inspired Inhibitors of Mycobacterium tuberculosis Mycothiol-Associated Enzymes: The First Inhibitors of GlcNAc-Ins Deacetylase. J Med Chem 2007; 50:6326-36. [DOI: 10.1021/jm070669h] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Belhu B. Metaferia
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
| | - Brandon J. Fetterolf
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
| | - Syed Shazad-ul-Hussan
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
| | - Matthew Moravec
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
| | - Jeremy A. Smith
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
| | - Satyajit Ray
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
| | - Maria-Teresa Gutierrez-Lugo
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
| | - Carole A. Bewley
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892
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13
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Abstract
The O,O-dibenzyl-S-glycosyl phosphothioite derived from 3,4,6-tri-O-acetyl-2-acetamido-2-deoxy-1-thio-alpha-D-glucopyranose rearranges under the influence of triethylborane and air to provide the corresponding 1-C-pyranosyl-O,O-dibenzylphosphonothioate, a new type of carbohydrate derivative. The isomeric beta phosphothioite is compared, and evidence of a radical chain mechanism for the Pudovik rearrangement is presented.
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Affiliation(s)
- Spencer Knapp
- Department of Chemistry & Chemical Biology, Rutgers - The State University of New Jersey 610 Taylor Road, Piscataway, New Jersey 08854-8087 USA
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14
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Ichikawa Y, Ohara F, Kotsuki H, Nakano K. A New Approach to the Neoglycopeptides: Synthesis of Urea- and Carbamate-Tethered N-Acetyl-d-glucosamine Amino Acid Conjugates. Org Lett 2006; 8:5009-12. [PMID: 17048830 DOI: 10.1021/ol0616788] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel approach to the synthesis of Fmoc-protected neoglycopeptide building blocks is described. Oxidation of N-acetyl-D-glucosamine isonitrile afforded the corresponding highly reactive glycopyranosyl isocyanate, which reacted with amino acid derivatives to furnish the corresponding urea- and carbamate-tethered Fmoc-protected N-acetyl-D-glucosamine amino acid conjugates in good yields. [reaction: see text]
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Affiliation(s)
- Yoshiyasu Ichikawa
- Faculty of Science, Kochi University, Akebono-cho, Kochi 780-8520, Japan.
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15
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Bolognese A, Fierro O, Guarino D, Longobardo L, Caputo R. One-Pot Synthesis of Orthogonally Protected EnantiopureS-(Aminoalkyl)cysteine Derivatives. European J Org Chem 2006. [DOI: 10.1002/ejoc.200500464] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Knapp S, Amorelli B, Darout E, Ventocilla CC, Goldman LM, Huhn RA, Minnihan EC. A Family of Mycothiol Analogues. J Carbohydr Chem 2005. [DOI: 10.1081/car-200059965] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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18
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Stereospecific synthesis of urea-tethered neoglycoconjugates starting from glucopyranosyl carbamates. Tetrahedron 2004. [DOI: 10.1016/j.tet.2004.01.055] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Bielawska H, Michalska M. A novel and practical synthesis of S-(1- and 2-halogenoalkyl)sugars by reaction of carbohydrate S-(O,O-dialkyl)phosphorodithioates and monothioates with fluoride anion. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2003.12.155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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20
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Abstract
The synthesis of several new sugar amino acid derivatives of 2-acetamido-2-deoxy-D-glucose, bearing a C-glycosyl functionality as building blocks for the design and synthesis of natural glycoconjugates mimetics, is described. These compounds were prepared from the readily accessible per-benzylated amino C-allyl glucopyranosyl compounds, with TMSOTf/Ac(2)O-mediated selective acetolysis of the 6-O-benzyl group as the key step.
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Affiliation(s)
- Juan Xie
- Laboratoire de Chimie des Glucides, CNRS UMR 7613, Université Pierre et Marie Curie, 4 Place Jussieu, F-75005, Paris, France.
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