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Traboni S, Bedini E, Capasso D, Esposito F, Iadonisi A. Adaptation of Zemplén's conditions for a simple and highly selective approach to methyl 1,2-trans glycosides. Carbohydr Res 2023; 528:108824. [PMID: 37141732 DOI: 10.1016/j.carres.2023.108824] [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: 12/11/2022] [Revised: 04/18/2023] [Accepted: 04/20/2023] [Indexed: 05/06/2023]
Abstract
1,2-trans methyl glycosides can be readily obtained from peracetylated sugars through their initial conversion into glycosyl iodide donors and subsequent exposure of these latter to a slight excess of sodium methoxide in methanol. Under these conditions a varied set of mono- and disaccharide precursors afforded the corresponding 1,2-trans glycosides with concomitant de-O-acetylation in satisfying yields (in the range 59-81%). A similar approach also proved effective when using GlcNAc glycosyl chloride as the donor.
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Affiliation(s)
- Serena Traboni
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy
| | - Emiliano Bedini
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy
| | - Domenica Capasso
- Center for Life Sciences and Technologies (CESTEV), University of Naples Federico II, 80145, Naples, Italy
| | - Fabiana Esposito
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy
| | - Alfonso Iadonisi
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy.
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2
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Singh Y, Geringer SA, Demchenko AV. Synthesis and Glycosidation of Anomeric Halides: Evolution from Early Studies to Modern Methods of the 21st Century. Chem Rev 2022; 122:11701-11758. [PMID: 35675037 PMCID: PMC9417321 DOI: 10.1021/acs.chemrev.2c00029] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Advances in synthetic carbohydrate chemistry have dramatically improved access to common glycans. However, many novel methods still fail to adequately address challenges associated with chemical glycosylation and glycan synthesis. Since a challenge of glycosylation has remained, scientists have been frequently returning to the traditional glycosyl donors. This review is dedicated to glycosyl halides that have played crucial roles in shaping the field of glycosciences and continue to pave the way toward our understanding of chemical glycosylation.
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Affiliation(s)
- Yashapal Singh
- Department of Chemistry and Biochemistry, University of Missouri-St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
| | - Scott A Geringer
- Department of Chemistry and Biochemistry, University of Missouri-St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
| | - Alexei V Demchenko
- Department of Chemistry and Biochemistry, University of Missouri-St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
- Department of Chemistry, Saint Louis University, 3501 Laclede Avenue, St. Louis, Missouri 63103, United States
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3
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Steber HB, Singh Y, Demchenko AV. Bismuth(iii) triflate as a novel and efficient activator for glycosyl halides. Org Biomol Chem 2021; 19:3220-3233. [PMID: 33885577 PMCID: PMC8112625 DOI: 10.1039/d1ob00093d] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Presented herein is the discovery that bismuth(iii) trifluoromethanesulfonate (Bi(OTf)3) is an effective catalyst for the activation of glycosyl bromides and glycosyl chlorides. The key objective for the development of this methodology is to employ only one promoter in the lowest possible amount and to avoid using any additive/co-catalyst/acid scavenger except molecular sieves. Bi(OTf)3 works well in promoting the glycosidation of differentially protected glucosyl, galactosyl, and mannosyl halides with many classes of glycosyl acceptors. Most reactions complete within 1 h in the presence of only 35% of green and light-stable Bi(OTf)3 catalyst.
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Affiliation(s)
- Hayley B Steber
- Department of Chemistry and Biochemistry, University of Missouri - St Louis, One University Boulevard, St Louis, Missouri 63121, USA.
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4
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Datta M. Recent Advances of Indium(III) Chloride Catalyzed Reactions in Organic Synthesis. ChemistrySelect 2021. [DOI: 10.1002/slct.202003828] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Mrityunjoy Datta
- Department of Chemistry Sarojini Naidu College for Women 30 Jessore Road Kolkata 700028 India
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5
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Singh Y, Demchenko AV. Defining the Scope of the Acid-Catalyzed Glycosidation of Glycosyl Bromides. Chemistry 2020; 26:1042-1051. [PMID: 31614042 PMCID: PMC7675295 DOI: 10.1002/chem.201904185] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/14/2019] [Indexed: 01/24/2023]
Abstract
Following the recent discovery that traditional silver(I) oxide-promoted glycosidations of glycosyl bromides (Koenigs-Knorr reaction) can be greatly accelerated in the presence of catalytic TMSOTf, reported herein is a dedicated study of all major aspects of this reaction. A thorough investigation of numerous silver salts and careful refinement of the reaction conditions led to an improved mechanistic understanding. This, in turn, led to a significant reduction in the amount of silver salt required for these glycosylations. The progress of this reaction can be monitored by naked eye, and the completion of the reaction can be judged by the disappearance of characteristic dark color of Ag2 O. Further evidence on higher reactivity of benzoylated α-bromides in comparison to that of their benzylated counterparts has been acquired.
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Affiliation(s)
- Yashapal Singh
- Department of Chemistry and Biochemistry, University of Missouri-St. Louis, One University Boulevard, St. Louis, Missouri, 63121, USA
| | - Alexei V Demchenko
- Department of Chemistry and Biochemistry, University of Missouri-St. Louis, One University Boulevard, St. Louis, Missouri, 63121, USA
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6
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Synthesis of enantiomerically pure enones (2-benzyloxypyran-3-ones) derived from pentoses. Carbohydr Res 2019; 479:31-40. [DOI: 10.1016/j.carres.2019.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 05/02/2019] [Accepted: 05/15/2019] [Indexed: 01/19/2023]
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7
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Singh Y, Demchenko AV. Koenigs-Knorr Glycosylation Reaction Catalyzed by Trimethylsilyl Trifluoromethanesulfonate. Chemistry 2019; 25:1461-1465. [PMID: 30407673 PMCID: PMC6522226 DOI: 10.1002/chem.201805527] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Indexed: 11/06/2022]
Abstract
The discovery that traditional silver(I)-oxide-promoted glycosidations of glycosyl bromides (Koenigs-Knorr reaction) can be greatly accelerated in the presence of catalytic trimethylsilyl trifluoromethanesulfonate (TMSOTf) is reported. The reaction conditions are very mild that allowed for maintaining a practically neutral pH and, at the same time, providing high rates and excellent glycosylation yields. In addition, unusual reactivity trends among a series of differentially protected glycosyl bromides were documented. In particular, benzoylated α-bromides were much more reactive than their benzylated counterparts under these conditions.
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Affiliation(s)
- Yashapal Singh
- Department of Chemistry and Biochemistry, University of Missouri–St. Louis
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8
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Wang SS, Gao X, Solar VD, Yu X, Antonopoulos A, Friedman AE, Matich EK, Atilla-Gokcumen GE, Nasirikenari M, Lau JT, Dell A, Haslam SM, Laine RA, Matta KL, Neelamegham S. Thioglycosides Are Efficient Metabolic Decoys of Glycosylation that Reduce Selectin Dependent Leukocyte Adhesion. Cell Chem Biol 2018; 25:1519-1532.e5. [PMID: 30344053 DOI: 10.1016/j.chembiol.2018.09.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 08/14/2018] [Accepted: 09/25/2018] [Indexed: 12/24/2022]
Abstract
Metabolic decoys are synthetic analogs of naturally occurring biosynthetic acceptors. These compounds divert cellular biosynthetic pathways by acting as artificial substrates that usurp the activity of natural enzymes. While O-linked glycosides are common, they are only partially effective even at millimolar concentrations. In contrast, we report that N-acetylglucosamine (GlcNAc) incorporated into various thioglycosides robustly truncate cell surface N- and O-linked glycan biosynthesis at 10-100 μM concentrations. The >10-fold greater inhibition is in part due to the resistance of thioglycosides to hydrolysis by intracellular hexosaminidases. The thioglycosides reduce β-galactose incorporation into lactosamine chains, cell surface sialyl Lewis-X expression, and leukocyte rolling on selectin substrates including inflamed endothelial cells under fluid shear. Treatment of granulocytes with thioglycosides prior to infusion into mouse inhibited neutrophil homing to sites of acute inflammation and bone marrow by ∼80%-90%. Overall, thioglycosides represent an easy to synthesize class of efficient metabolic inhibitors or decoys. They reduce N-/O-linked glycan biosynthesis and inflammatory leukocyte accumulation.
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Affiliation(s)
- Shuen-Shiuan Wang
- Department of Chemical and Biological Engineering, State University of New York, 906 Furnas Hall, Buffalo, NY 14260, USA
| | - Xuefeng Gao
- TumorEnd LLC, Louisiana Emerging Technology Center, 340 East Parker Drive, Suite 246, Baton Rouge, LA 70803, USA
| | - Virginia Del Solar
- Department of Chemical and Biological Engineering, State University of New York, 906 Furnas Hall, Buffalo, NY 14260, USA; Clinical & Translational Research Center and State University of New York, Buffalo, NY 14260, USA
| | - Xinheng Yu
- Department of Chemical and Biological Engineering, State University of New York, 906 Furnas Hall, Buffalo, NY 14260, USA
| | | | - Alan E Friedman
- Department of Chemistry, State University of New York, Buffalo, NY 14260, USA
| | - Eryn K Matich
- Department of Chemistry, State University of New York, Buffalo, NY 14260, USA
| | | | - Mehrab Nasirikenari
- Department of Cellular and Molecular Biology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - Joseph T Lau
- Department of Cellular and Molecular Biology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - Anne Dell
- Department of Life Sciences, Imperial College London, London SW7 2AZ, UK
| | - Stuart M Haslam
- Department of Life Sciences, Imperial College London, London SW7 2AZ, UK
| | - Roger A Laine
- TumorEnd LLC, Louisiana Emerging Technology Center, 340 East Parker Drive, Suite 246, Baton Rouge, LA 70803, USA
| | - Khushi L Matta
- Department of Chemical and Biological Engineering, State University of New York, 906 Furnas Hall, Buffalo, NY 14260, USA; TumorEnd LLC, Louisiana Emerging Technology Center, 340 East Parker Drive, Suite 246, Baton Rouge, LA 70803, USA.
| | - Sriram Neelamegham
- Department of Chemical and Biological Engineering, State University of New York, 906 Furnas Hall, Buffalo, NY 14260, USA; Clinical & Translational Research Center and State University of New York, Buffalo, NY 14260, USA.
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9
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10
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Lanz G, Madsen R. Glycosylation with Disarmed Glycosyl Bromides Promoted by Iodonium Ions. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600545] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gyrithe Lanz
- Department of Chemistry; Technical University of Denmark; 2800 Kgs. Lyngby Denmark
| | - Robert Madsen
- Department of Chemistry; Technical University of Denmark; 2800 Kgs. Lyngby Denmark
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11
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Salmasan RM, Manabe Y, Kitawaki Y, Chang TC, Fukase K. Efficient Glycosylation Using In(OTf)3 as a Lewis Acid: Activation of N-Phenyltrifluoroacetimidate or Thioglycosides with Halogenated Reagents or PhIO. CHEM LETT 2014. [DOI: 10.1246/cl.140167] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | - Yoshiyuki Manabe
- Department of Chemistry, Graduate School of Science, Osaka University
| | - Yuriko Kitawaki
- Department of Chemistry, Graduate School of Science, Osaka University
| | - Tsung-Che Chang
- Department of Chemistry, Graduate School of Science, Osaka University
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University
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12
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Gu X, Chen L, Wang X, Liu X, You Q, Xi W, Gao L, Chen G, Chen YL, Xiong B, Shen J. Direct Glycosylation of Bioactive Small Molecules with Glycosyl Iodide and Strained Olefin as Acid Scavenger. J Org Chem 2014; 79:1100-10. [DOI: 10.1021/jo402551x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Xiangying Gu
- School of Pharmacy, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, PR China
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Department 555, Zuchongzhi Road, Shanghai 201203, PR China
| | - Lin Chen
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Department 555, Zuchongzhi Road, Shanghai 201203, PR China
| | - Xin Wang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Department 555, Zuchongzhi Road, Shanghai 201203, PR China
| | - Xiao Liu
- School of Pharmacy, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, PR China
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Department 555, Zuchongzhi Road, Shanghai 201203, PR China
| | - Qidong You
- School of Pharmacy, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, PR China
| | - Wenwei Xi
- Shanghai Chiralway Biotech Co., Ltd., Room 422, No. 986, South Hongmei Road, Xuhui District, Shanghai 200237, PR China
| | - Li Gao
- Shanghai Chiralway Biotech Co., Ltd., Room 422, No. 986, South Hongmei Road, Xuhui District, Shanghai 200237, PR China
| | - Guohua Chen
- School of Pharmacy, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, PR China
| | - Yue-Lei Chen
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Department 555, Zuchongzhi Road, Shanghai 201203, PR China
| | - Bing Xiong
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Department 555, Zuchongzhi Road, Shanghai 201203, PR China
| | - Jingkang Shen
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Department 555, Zuchongzhi Road, Shanghai 201203, PR China
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13
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Lambu MR, Hussain A, Sharma DK, Yousuf SK, Singh B, Tripathi AK, Mukherjee D. Synthesis of C-spiro-glycoconjugates from sugar lactones via zinc mediated Barbier reaction. RSC Adv 2014. [DOI: 10.1039/c3ra46796a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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14
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15
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Sharma DK, Lambu MR, Sidiq T, Khajuria A, Tripathi AK, Yousuf SK, Mukherjee D. Ammonium chloride mediated synthesis of alkyl glycosides and evaluation of their immunomodulatory activity. RSC Adv 2013. [DOI: 10.1039/c3ra41050a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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16
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Lachkar D, Boudet C, Guinchard X, Crich D. 2-(Selenocyanatomethyl)-2-propenol — A convenient synthon for ligation via the deselenative allylic rearrangement of allyl selenosulfides: preparation, functional group compatibility, and application. CAN J CHEM 2012. [DOI: 10.1139/v2012-056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The preparation and reactions of 2-(selenocyanatomethyl)-2-propenol are described and reveal the compatibility of the allylic selenocyanate group with a range of mild oxidizing and Lewis acidic conditions. 2-(Selenocyanatomethyl)-2-propenol and its derivatives are employed in the functionalization of simple and amino acid derived thiols in methanolic solution at room temperature to give 2-(hydroxymethyl)allyl sulfides in good to excellent yield.
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Affiliation(s)
- David Lachkar
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, 1 Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
| | - Caroline Boudet
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, 1 Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
| | - Xavier Guinchard
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, 1 Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
| | - David Crich
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, 1 Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI 48202, USA
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17
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Using In(III) as a promoter for glycosylation. Carbohydr Res 2011; 347:142-6. [PMID: 22094006 DOI: 10.1016/j.carres.2011.10.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Revised: 10/03/2011] [Accepted: 10/10/2011] [Indexed: 11/21/2022]
Abstract
InCl(3), InBr(3), and In(OTf)(3) were tested as promoters in the preparation of glycosides from trichloroacetimidate precursors. A range of protecting groups and of alcohol acceptors were used to determine the versatility of these promoters. Disaccharide formation was demonstrated. In most cases, the In(III) compounds were shown to promote glycosylation better than the widely used promoter BF(3)·OEt(2).
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Ribeiro A, Valente A, Lobo V. Diffusion Behaviour of Trivalent Metal Ions in Aqueous Solutions. CHEMISTRY & CHEMICAL TECHNOLOGY 2011. [DOI: 10.23939/chcht05.02.133] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Virlouvet M, Gartner M, Koroniak K, Sleeman JP, Bräse S. Multi-Gram Synthesis of a Hyaluronic Acid Subunit and Synthesis of Fully Protected Oligomers. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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20
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Xue JL, Cecioni S, He L, Vidal S, Praly JP. Variations on the SnCl4 and CF3CO2Ag-promoted glycosidation of sugar acetates: a direct, versatile and apparently simple method with either α or β stereocontrol. Carbohydr Res 2009; 344:1646-53. [DOI: 10.1016/j.carres.2009.06.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2009] [Revised: 05/27/2009] [Accepted: 06/01/2009] [Indexed: 10/20/2022]
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22
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23
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Pastore A, Adinolfi M, Iadonisi A. BiBr3-Promoted Activation of Peracetylated Glycosyl Iodides: Straightforward Access to Synthetically Useful 2-O-Deprotected Allyl Glycosides. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800914] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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24
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Mukherjee D, Yousuf SK, Taneja SC. Indium trichloride promoted stereoselective synthesis of O-glycosides from trialkyl orthoformates. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.05.130] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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25
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Murakami T, Sato Y, Shibakami M. Stereoselective glycosylations using benzoylated glucosyl halides with inexpensive promoters. Carbohydr Res 2008; 343:1297-308. [DOI: 10.1016/j.carres.2008.03.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2008] [Revised: 02/26/2008] [Accepted: 03/11/2008] [Indexed: 10/22/2022]
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26
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: an update covering the period 2001-2002. MASS SPECTROMETRY REVIEWS 2008; 27:125-201. [PMID: 18247413 DOI: 10.1002/mas.20157] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
This review is the second update of the original review on the application of MALDI mass spectrometry to the analysis of carbohydrates and glycoconjugates that was published in 1999. It covers fundamental aspects of the technique as applied to carbohydrates, fragmentation of carbohydrates, studies of specific carbohydrate types such as those from plant cell walls and those attached to proteins and lipids, studies of glycosyl-transferases and glycosidases, and studies where MALDI has been used to monitor products of chemical synthesis. Use of the technique shows a steady annual increase at the expense of older techniques such as FAB. There is an increasing emphasis on its use for examination of biological systems rather than on studies of fundamental aspects and method development and this is reflected by much of the work on applications appearing in tabular form.
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Affiliation(s)
- David J Harvey
- Department of Biochemistry, Oxford Glycobiology Institute, South Parks Road, Oxford OX1 3QU, UK.
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27
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Murakami T, Hirono R, Sato Y, Furusawa K. Efficient synthesis of ω-mercaptoalkyl 1,2-trans-glycosides from sugar peracetates. Carbohydr Res 2007; 342:1009-20. [PMID: 17362892 DOI: 10.1016/j.carres.2007.02.024] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2007] [Revised: 02/16/2007] [Accepted: 02/20/2007] [Indexed: 11/24/2022]
Abstract
Lewis acid-promoted reactions of peracetylated sugars (glucose, galactose, maltose, lactose) with omega-bromo-1-alkanols (C(8), C(12)) were investigated. ZnCl(2) was found to promote the 1,2-trans-glycosylation of the alcohols in toluene at about 60 degrees C in a stereocontrolled manner with better yields than commonly employed promoters such as SnCl(4). The omega-bromoalkyl acetylated glycosides were readily converted to omega-mercaptoalkyl glycosides, which are useful for the preparation of glycoclusters.
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Affiliation(s)
- Teiichi Murakami
- Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, Tsukuba, Ibaraki 305-8565, Japan.
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28
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Tian Q, Zhang S, Yu Q, He MB, Yang JS. Amberlyst 15 as a mild and effective activator for the glycosylation with disarmed glycosyl trichloroacetimidate donors. Tetrahedron 2007. [DOI: 10.1016/j.tet.2006.12.091] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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29
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Mukherjee D, Sarkar SK, Chowdhury US, Taneja SC. A rapid stereoselective C-glycosidation of indoles and pyrrole via indium trichloride promoted reactions of glycosyl halides. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2006.11.107] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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Grayson EJ, Ward SJ, Hall AL, Rendle PM, Gamblin DP, Batsanov AS, Davis BG. Glycosyl Disulfides: Novel Glycosylating Reagents with Flexible Aglycon Alteration. J Org Chem 2005; 70:9740-54. [PMID: 16292802 DOI: 10.1021/jo051374j] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] Glycosyl disulfides have been shown for the first time to be effective glycosyl donors. Glucosylation and galactosylation of a panel of representative alcohol acceptors allowed the formation of 28 simple glycosides, disaccharides, and glycoamino acids in yields of up to 90%. As well as providing a novel class of effective glycosyl donors, the ability to easily alter the nature of the aglycon and the ability to differently activate donors that differ only in their aglycon simply through altering conditions lends glycosyl disulfide donors to their use in latent-active reactivity tuning strategies.
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Affiliation(s)
- Elizabeth J Grayson
- Department of Chemistry, University of Durham, South Road, Durham, UK, DH1 3LE
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31
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Huang SL, Zhu YL, Pan YJ, Wu SH. Synthesis of arbutin by two-step reaction from glucose. JOURNAL OF ZHEJIANG UNIVERSITY. SCIENCE 2004; 5:1509-1511. [PMID: 15547956 DOI: 10.1631/jzus.2004.1509] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Arbutin was synthesized from glucose by two-step reaction below: (a) 2,3,4,6-tetra-O-acetyl-alpha-D-glucosyl chloride or bromide was prepared by glucose and acetyl halide (chloride or bromide). (b) 2,3,4,6-tetra-O-acetyl-alpha-D-glucosyl halide (Cl, Br) reacted with hydroquinone, methanol as solvent at pH=9.5-10.0.
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Affiliation(s)
- Shen-Lin Huang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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Chemical versus enzymatic acetylation of α-bromo-ω-hydroxyaldehydes: decyclization of hemiacetals by lipase. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)00502-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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