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Panza M, Pistorio SG, Stine KJ, Demchenko AV. Automated Chemical Oligosaccharide Synthesis: Novel Approach to Traditional Challenges. Chem Rev 2018; 118:8105-8150. [PMID: 29953217 PMCID: PMC6522228 DOI: 10.1021/acs.chemrev.8b00051] [Citation(s) in RCA: 216] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Advances in carbohydrate chemistry have certainly made common oligosaccharides much more accessible. However, many current methods still rely heavily upon specialized knowledge of carbohydrate chemistry. The application of automated technologies to chemical and life science applications such as genomics and proteomics represents a vibrant field. These automated technologies also present opportunities for their application to organic synthesis, including that of the synthesis of oligosaccharides. However, application of automated methods to the synthesis of carbohydrates is an underdeveloped area as compared to other classes of biomolecules. The overarching goal of this review article is to present the advances that have been made at the interface of carbohydrate chemistry and automated technology.
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Affiliation(s)
- Matteo Panza
- Department of Chemistry and Biochemistry, University of Missouri–St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
| | - Salvatore G. Pistorio
- Department of Chemistry and Biochemistry, University of Missouri–St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
| | - Keith J. Stine
- 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
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2
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Wei X, Bao X, Wu J, Li C, Shi Y, Chen J, Lv B, Zhu B. Typical pharmaceutical molecule removal behavior from water by positively and negatively charged composite hollow fiber nanofiltration membranes. RSC Adv 2018; 8:10396-10408. [PMID: 35540449 PMCID: PMC9078923 DOI: 10.1039/c8ra00519b] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 03/05/2018] [Indexed: 01/20/2023] Open
Abstract
The rejection behaviors of two different charged composite hollow fiber nanofiltration (NF) membranes for six pharmaceutical molecules, primidone, carbamazepine, sulfamethoxazole, atenolol, sulfadimidine and norfloxacin, were characterized in this study. The saturation adsorption behaviors of the different pharmaceutical molecules on each membrane surface were studied and found to be related to the molecular weight, charge and hydrophilicity of the pharmaceutical molecules. After the pharmaceutical molecules reached adsorption equilibrium, the rejection rates of different NF membranes were characterized. The rejection rates of primidone, carbamazepine, sulfamethoxazole, atenolol, sulfadimidine and norfloxacin by the PEI-NF membrane were 85.6%, 91.8%, 79.9%, 98.1%, 93.3%, and 97.1%, respectively. Meanwhile, the rejection rates of the pharmaceutical molecules by the PIP-NF membrane were 82.2%, 85.4%, 91.5%, 79.1%, 87% and 93.3%, respectively. The influence of feed concentration, operation pressure, temperature, pH and ionic strength on the rejection behaviors of the different charged NF membranes were also studied. The rejection behaviors of two different charged composite hollow fiber nanofiltration (NF) membranes for six pharmaceutical molecules, primidone, carbamazepine, sulfamethoxazole, atenolol, sulfadimidine and norfloxacin, were characterized in this study.![]()
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Affiliation(s)
- Xiuzhen Wei
- College of Environment
- Zhejiang University of Technology
- Hangzhou 310014
- China
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province
| | - Xiaoyan Bao
- College of Environment
- Zhejiang University of Technology
- Hangzhou 310014
- China
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province
| | - Jiawei Wu
- College of Environment
- Zhejiang University of Technology
- Hangzhou 310014
- China
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province
| | - Cuixia Li
- College of Environment
- Zhejiang University of Technology
- Hangzhou 310014
- China
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province
| | - Yingying Shi
- College of Environment
- Zhejiang University of Technology
- Hangzhou 310014
- China
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province
| | - Jinyuan Chen
- College of Environment
- Zhejiang University of Technology
- Hangzhou 310014
- China
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province
| | - Bosheng Lv
- College of Environment
- Zhejiang University of Technology
- Hangzhou 310014
- China
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province
| | - Baoku Zhu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Zhejiang University
- China
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3
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Vartak A, Thanna S, Meyer K, Dermanelian M, Sucheck SJ. Oligosaccharide synthesis on soluble high-molecular weight pHEMA using a photo-cleavable linker. RSC Adv 2018; 8:41612-41619. [PMID: 31263543 PMCID: PMC6602538 DOI: 10.1039/c8ra08252a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Oligosaccharide synthesis on organic solvent soluble, high molecular weight poly(2-hydroxyethylmethylacrylate) (pHEMA) is described. The pHEMA-bound oligosaccharide could be recovered after each reaction in 90–95% yield using a precipitation method. The methodology was used to synthesize a model tri-galactoside in 48% overall yield and a trisaccharide from the outer core domain of Pseudomonas aeruginosa lipopolysacchride (LPS) in 39% yield. The use of a photo-cleavable linker is also demonstrated to produce reducing-end protected oligosaccharides. Oligosaccharide synthesis on organic solvent soluble, high molecular weight poly(2-hydroxyethylmethylacrylate) (pHEMA) is described.![]()
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Affiliation(s)
- Abhishek Vartak
- Department of Chemistry and Biochemistry
- University of Toledo
- Toledo
- USA
| | - Sandeep Thanna
- Department of Chemistry and Biochemistry
- University of Toledo
- Toledo
- USA
| | - Kyle Meyer
- Department of Chemistry and Biochemistry
- University of Toledo
- Toledo
- USA
| | | | - Steven J. Sucheck
- Department of Chemistry and Biochemistry
- University of Toledo
- Toledo
- USA
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4
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Hasty SJ, Bandara MD, Rath NP, Demchenko AV. S-Benzimidazolyl (SBiz) Imidates as a Platform for Oligosaccharide Synthesis via Active-Latent, Armed-Disarmed, Selective, and Orthogonal Activations. J Org Chem 2017; 82:1904-1911. [PMID: 28135419 PMCID: PMC5498158 DOI: 10.1021/acs.joc.6b02478] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This article describes the development of S-benzimidazolyl (SBiz) imidates as versatile building blocks for oligosaccharide synthesis. The SBiz imidates have been originally developed as a new platform for active-latent glycosylations. This article expands upon the utility of these compounds. The application to practically all common concepts for the expeditious oligosaccharide synthesis including selective, chemoselective, and orthogonal strategies is demonstrated. The strategy development was made possible thanks to our enhanced understanding of the reaction mechanism and the modes by which SBiz imidates interact with various promoters of glycosylation.
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Affiliation(s)
- Scott J. Hasty
- Department of Chemistry and Biochemistry, University of Missouri—St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
| | - Mithila D. Bandara
- Department of Chemistry and Biochemistry, University of Missouri—St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
| | - Nigam P. Rath
- 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
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5
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Heuckendorff M, Jensen HH. Removal of some common glycosylation by-products during reaction work-up. Carbohydr Res 2016; 439:50-56. [PMID: 28107657 DOI: 10.1016/j.carres.2016.12.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 12/22/2016] [Accepted: 12/22/2016] [Indexed: 10/20/2022]
Abstract
With the aim of improving the general glycosylation protocol to facilitate easy product isolation it was shown that amide by-products from glycosylation with trichloroacetimidate and N-phenyl trifluoroacetimidate donors could be removed during reaction work-up by washing with a basic aqueous solution. Excess glycosyl acceptor or lactol originating from glycosyl donor hydrolysis could equally be removed from the reaction mixture by derivatization with a basic tag and washing with an acidic solution during reaction work-up.
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Affiliation(s)
- Mads Heuckendorff
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
| | - Henrik H Jensen
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark.
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6
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Gillard L, Tran AT, Boyer FD, Beau JM. Chitooligosaccharide Synthesis Using an Ionic Tag. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501476] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Abstract
An ionic liquid-supported synthetic method for the construction of glycopeptides in high yields is reported. This method avoids the use of large excesses of reagents and chromatographic purification and, therefore, represents a useful addition to existing approaches for the ionic liquid-supported synthesis of oligosaccharides and peptides.
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Affiliation(s)
- Changgeng Li
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences , Chaoyang District, Beijing 100101, China
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8
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Prosa N, Scherrmann MC, Merlet D, Farjon J. SENSASS NMR: New NMR techniques for enhancing the sensitivity and the spectral resolution of polymer supported chemicals. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2013; 237:63-72. [PMID: 24140624 DOI: 10.1016/j.jmr.2013.09.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2013] [Revised: 09/18/2013] [Accepted: 09/19/2013] [Indexed: 06/02/2023]
Abstract
The use of polyethylene glycols (PEGs) as organic polymer soluble supports for synthesis has been receiving growing interest. The main advantages of using PEGs as support are related to their non-toxicity, their commercial availability and their solubility properties allowing easy recovery and analysis of compounds linked to the polymer. The NMR characterization of PEG-branched products could however be difficult due to the presence of huge signals of the polymeric support. In order to overcome this problem, we developed new NMR experiments named SENSitivity increAsed and resolution enhanced by Signal Suppression or SENSASS NMR. These experiments implement either semi-selective pulses or Water Gate sequences for reducing signals of the polymer as well as fast pulsing techniques optimizing the recycling delay for enhancing the sensitivity of signals. They have been successfully implemented in classical NMR characterization experiments namely, COSY, HSQC and HMBC experiments.
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Affiliation(s)
- Nicolò Prosa
- Université Paris-Sud, Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Equipe de Chimie des Procédés et des Substances Naturelles, CNRS UMR 8182, 15, rue Georges Clemenceau, bât 410, 91405 Orsay Cedex, France
| | - Marie-Christine Scherrmann
- Université Paris-Sud, Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Equipe de Chimie des Procédés et des Substances Naturelles, CNRS UMR 8182, 15, rue Georges Clemenceau, bât 410, 91405 Orsay Cedex, France
| | - Denis Merlet
- Université Paris-Sud, Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Equipe de RMN en Milieu Orienté, CNRS UMR 8182, 15, rue Georges Clemenceau, bât 410, 91405 Orsay Cedex, France
| | - Jonathan Farjon
- Université Paris-Sud, Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Equipe de RMN en Milieu Orienté, CNRS UMR 8182, 15, rue Georges Clemenceau, bât 410, 91405 Orsay Cedex, France.
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9
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Ranade SC, Hasty SJ, Demchenko AV. A Comparative Study of Glycosyl Thioimidates as Building Blocks for Chemical Glycosylation. J Carbohydr Chem 2013. [DOI: 10.1080/07328303.2013.826670] [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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10
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Prosa N, Turgis R, Piccardi R, Scherrmann MC. Soluble Polymer-Supported Flow Synthesis: A Green Process for the Preparation of Heterocycles. European J Org Chem 2012. [DOI: 10.1002/ejoc.201101726] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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11
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Ma Q, Sun S, Meng XB, Li Q, Li SC, Li ZJ. Assembly of Homolinear α(1→2)-Linked Nonamannoside on Ionic Liquid Support. J Org Chem 2011; 76:5652-60. [DOI: 10.1021/jo2006126] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Qing Ma
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
| | - Sheng Sun
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
| | - Xiang-Bao Meng
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
| | - Qing Li
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
| | - Shu-Chun Li
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
| | - Zhong-Jun Li
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China
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12
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Mar Kayser M, de Paz JL, Nieto PM. Polymer-Supported Synthesis of Oligosaccharides Using a Diisopropylsiloxane Linker and Trichloroacetimidate Donors. European J Org Chem 2010. [DOI: 10.1002/ejoc.200901445] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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13
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de Paz JL, Mar Kayser M, Macchione G, Nieto PM. Exploration of the use of an acylsulfonamide safety-catch linker for the polymer-supported synthesis of hyaluronic acid oligosaccharides. Carbohydr Res 2010; 345:565-71. [DOI: 10.1016/j.carres.2009.12.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2009] [Revised: 12/17/2009] [Accepted: 12/21/2009] [Indexed: 10/20/2022]
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14
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Smoot JT, Demchenko AV. Oligosaccharide synthesis: from conventional methods to modern expeditious strategies. Adv Carbohydr Chem Biochem 2009; 62:161-250. [PMID: 19501706 DOI: 10.1016/s0065-2318(09)00005-5] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- James T Smoot
- Department of Chemistry and Biochemistry, University of Missouri, St. Louis, MO 63121, USA
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15
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2003-2004. MASS SPECTROMETRY REVIEWS 2009; 28:273-361. [PMID: 18825656 PMCID: PMC7168468 DOI: 10.1002/mas.20192] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2008] [Revised: 07/07/2008] [Accepted: 07/07/2008] [Indexed: 05/13/2023]
Abstract
This review is the third update of the original review, published in 1999, on the application of matrix-assisted laser desorption/ionization (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings the topic to the end of 2004. Both fundamental studies and applications are covered. The main topics include methodological developments, matrices, fragmentation of carbohydrates and applications to large polymeric carbohydrates from plants, glycans from glycoproteins and those from various glycolipids. Other topics include the use of MALDI MS to study enzymes related to carbohydrate biosynthesis and degradation, its use in industrial processes, particularly biopharmaceuticals and its use to monitor products of chemical synthesis where glycodendrimers and carbohydrate-protein complexes are highlighted.
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Affiliation(s)
- David J Harvey
- Department of Biochemistry, Oxford Glycobiology Institute, University of Oxford, Oxford OX1 3QU, UK.
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16
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Nokami T, Tsuyama H, Shibuya A, Nakatsutsumi T, Yoshida JI. Oligosaccharide Synthesis Based on a One-pot Electrochemical Glycosylation–Fmoc Deprotection Sequence. CHEM LETT 2008. [DOI: 10.1246/cl.2008.942] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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17
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Parlato MC, Kamat MN, Wang H, Stine KJ, Demchenko AV. Application of Glycosyl Thioimidates in Solid-Phase Oligosaccharide Synthesis. J Org Chem 2008; 73:1716-25. [DOI: 10.1021/jo701902f] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M. Cristina Parlato
- Department of Chemistry and Biochemistry and Center for Nanoscience, University of MissouriSt. Louis, One University Boulevard, St. Louis, Missouri 63121
| | - Medha N. Kamat
- Department of Chemistry and Biochemistry and Center for Nanoscience, University of MissouriSt. Louis, One University Boulevard, St. Louis, Missouri 63121
| | - Haisheng Wang
- Department of Chemistry and Biochemistry and Center for Nanoscience, University of MissouriSt. Louis, One University Boulevard, St. Louis, Missouri 63121
| | - Keith J. Stine
- Department of Chemistry and Biochemistry and Center for Nanoscience, University of MissouriSt. Louis, One University Boulevard, St. Louis, Missouri 63121
| | - Alexei V. Demchenko
- Department of Chemistry and Biochemistry and Center for Nanoscience, University of MissouriSt. Louis, One University Boulevard, St. Louis, Missouri 63121
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18
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Chemo-enzymatic supported synthesis of the 3-sulfated Lewis a pentasaccharide on a multimeric polyethylene glycol. Carbohydr Res 2008; 343:970-6. [PMID: 18280461 DOI: 10.1016/j.carres.2008.01.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2007] [Revised: 12/21/2007] [Accepted: 01/07/2008] [Indexed: 11/20/2022]
Abstract
The 3-sulfated Lewis(a) pentasaccharide was synthesized on multimeric-based polyethylene glycol support. Coupling of O-(2,3,4,6-tetra-O-acetyl-beta-D-galactopyranosyl)-(1-->3)-4,6-di-O-acetyl-2-deoxy-2-phthalimido-beta-D-glucopyranosyl trichloroacetimidate with (2,6-di-O-acetyl-beta-D-galactopyranosyl)-(1-->4)-(2,3,6-tri-O-acetyl-beta-D-glucopyranoside) bound onto the polymer afforded lacto-N-tetraose, which was then regioselectively sulfated at the 3-OH position of the terminal galactose using the stannylene procedure. Fucosylation of the sulfated tetrasaccharide was performed using an immobilized fucosyltransferase FucTIII to give the title compound after cleavage.
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19
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El Seoud OA, Koschella A, Fidale LC, Dorn S, Heinze T. Applications of Ionic Liquids in Carbohydrate Chemistry: A Window of Opportunities. Biomacromolecules 2007; 8:2629-47. [PMID: 17691840 DOI: 10.1021/bm070062i] [Citation(s) in RCA: 557] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ionic liquids (ILs) are composed only of ions. Of special interest to this review are those where at least one ion (the cation) is organic and whose melting points are below or not far above room temperature. ILs are designated as "green" solvents because they have extremely low vapor pressure, are non-inflammable, and thermally and chemically stable. Therefore, many of them can be, in principle, recycled into the process indefinitely. The objective of the present review is to discuss different aspects of the use of ILs in carbohydrate chemistry, in particular, dissolution and functionalization of simple sugars, cyclodextrins, cellulose, starch, and chitin/chitosan. The molecular structure and synthesis of ILs most frequently employed in carbohydrate chemistry are discussed with an emphasis on imidazolium and pyridinium cations with different counterions. The physicochemical properties of ILs that are relevant to the dissolution and functionalization of carbohydrates, in particular their polarities and hydrogen-bonding abilities, are discussed. Dissolution of simple saccharides and biopolymers in ILs is presented with an emphasis on the mechanism of carbohydrate--IL interactions. Finally, the very interesting novel applications of the solutions obtained are addressed. These include, inter alia, spinning of the dissolved biopolymer into fibers, extrusion into slabs and rods, formation of matrixes for a myriad of substrates, including biomacromolecules, formation of nanocomposites, and functionalization to produce important derivatives. The use of ILs in many branches of science is expanding fast; it is hoped that this review will draw the attention of researchers to the "window of opportunities" that these green solvents open into carbohydrate chemistry.
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Affiliation(s)
- Omar A El Seoud
- Instituto de Química, Universidade de São Paulo, C.P. 26077, 05513-970 São Paulo, S.P., Brazil.
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20
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Manabe S, Ueki A, Ito Y. Polymer-supported oligosaccharide synthesis using ultrafiltration methodology. Chem Commun (Camb) 2007:3673-5. [PMID: 17728890 DOI: 10.1039/b705324j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polymer-supported oligosaccharide synthesis was carried out using an ultrafiltration technique in which the synthesized polymer-bound oligosaccharides were separated from the other reagents by ultrafiltration though membranes with specifically sized pores.
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Affiliation(s)
- Shino Manabe
- RIKEN (The Institute of Physical and Chemical Research), Hirosawa, Wako, Saitama, Japan.
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21
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A study of polymer-supported bases for the solution phase synthesis of glycosyl trichloroacetimidates. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.02.055] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Liu H, Wan S, Floreancig PE. Oxidative Cyclorelease from Soluble Polymeric Supports. J Org Chem 2005; 70:3814-8. [PMID: 15876065 DOI: 10.1021/jo0480951] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] Single electron oxidation is shown to be a viable method for effecting concomitant cyclization and cleavage (cyclorelease) of a series of polymer bound homobenzylic ethers. Soluble oligonorbornene polymers are stable toward redox chemistry and are isolable through precipitation with methanol, making them excellent supports for this process. These oxidative conditions are also shown to cleave secondary and tertiary alcohols and ethers in a new traceless approach to polymer-supported aldehyde and ketone synthesis.
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Affiliation(s)
- Hua Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
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23
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Dondoni A, Marra A, Massi A. Hybrid Solution/Solid-Phase Synthesis of Oligosaccharides by Using Trichloroacetyl Isocyanate as Sequestration-Enabling Reagent of Sugar Alcohols. Angew Chem Int Ed Engl 2005; 44:1672-6. [PMID: 15693044 DOI: 10.1002/anie.200462422] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Alessandro Dondoni
- Laboratorio di Chimica Organica, Dipartimento di Chimica, Università di Ferrara, Via L. Borsari 46, 44100 Ferrara, Italy
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24
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Dondoni A, Marra A, Massi A. Hybrid Solution/Solid-Phase Synthesis of Oligosaccharides by Using Trichloroacetyl Isocyanate as Sequestration-Enabling Reagent of Sugar Alcohols. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200462422] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Novel multivalent mannose compounds and their inhibition of the adhesion of type 1 fimbriated uropathogenic E. coli. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.tetasy.2004.11.014] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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