1
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Farabi K, Manabe Y, Ichikawa H, Miyake S, Tsutsui M, Kabayama K, Yamaji T, Tanaka K, Hung SC, Fukase K. Concise and Reliable Syntheses of Glycodendrimers via Self-Activating Click Chemistry: A Robust Strategy for Mimicking Multivalent Glycan-Pathogen Interactions. J Org Chem 2020; 85:16014-16023. [PMID: 33058668 DOI: 10.1021/acs.joc.0c01547] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Individual interactions between glycans and their receptors are usually weak, although these weak interactions can combine to realize a strong interaction (multivalency). Such multivalency plays a crucial role in the recognition of host cells by pathogens. Glycodendrimers are useful materials for the reconstruction of this multivalent interaction. However, the introduction of a large number of glycans to a dendrimer core is fraught with difficulties. We herein synthesized antipathogenic glycodendrimers using the self-activating click chemistry (SACC) method developed by our group. The excellent reactivity of SACC enabled the efficient preparation of sialyl glycan and Gb3 glycan dendrimers, which exhibited strong avidity toward hemagglutinin on influenza virus and Shiga toxin B subunit produced by Escherichia coli, respectively. We demonstrated the usefulness of SACC-based glycodendrimers as antipathogenic compounds.
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Affiliation(s)
- Kindi Farabi
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Yoshiyuki Manabe
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.,Core for Medicine and Science Collaborative Research and Education, Project Research Center for Fundamental Sciences, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Hiroaki Ichikawa
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Shuto Miyake
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Masato Tsutsui
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Kazuya Kabayama
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.,Core for Medicine and Science Collaborative Research and Education, Project Research Center for Fundamental Sciences, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Toshiyuki Yamaji
- Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Toyama 1-23-1, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Katsunori Tanaka
- Biofunctional Synthetic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.,School of Materials and Chemical Technology, Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Shang-Cheng Hung
- Genomics Research Center, Academia Sinica, 128, Section 2, Academia Road, Taipei 115, Taiwan
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.,Core for Medicine and Science Collaborative Research and Education, Project Research Center for Fundamental Sciences, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
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2
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Mukherjee MM, Maity SK, Ghosh R. One-pot construction of carbohydrate scaffolds mediated by metal catalysts. RSC Adv 2020; 10:32450-32475. [PMID: 35516477 PMCID: PMC9056687 DOI: 10.1039/d0ra05355d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 08/04/2020] [Indexed: 11/21/2022] Open
Abstract
Owing to the environmental concern worldwide and also due to cost, time and labour issues, use of one-pot reactions [domino/cascade/tandem/multi-component (MC) or sequential] has gained much attention among the scientific and industrial communities for the generation of compound libraries having different scaffolds. Inclusion of sugars in such compounds is expected to increase the pharmacological efficacy because of the possibility of better interactions with the receptors of such unnatural glycoconjugates. In many of the one-pot transformations, the presence of a metal salt/complex can improve the reaction/change the course of reaction with remarkable increase in chemo-/regio-/stereo-selectivity. On the other hand because of the importance of natural polymeric glycoconjugates in life processes, the development and efficient synthesis of related oligosaccharides, particularly utilising one-pot MC-glycosylation techniques are necessary. The present review is an endeavour to discuss one-pot transformations involving carbohydrates catalysed by a metal salt/complex.
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Affiliation(s)
- Mana Mohan Mukherjee
- Laboratory of Cell and Molecular Biology, NIDDK, National Institutes of Health Bethesda MD 20892 USA
| | | | - Rina Ghosh
- Department of Chemistry, Jadavpur University Kolkata 700032 India
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3
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Chen J, Hansen T, Zhang Q, Liu D, Sun Y, Yan H, Codée JDC, Schmidt RR, Sun J. 1‐Picolinyl‐5‐azido Thiosialosides: Versatile Donors for the Stereoselective Construction of Sialyl Linkages. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909177] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jian Chen
- The National Research Center for Carbohydrate SynthesisJiangxi Normal University 99 Ziyang Avenue Nanchang 330022 China
| | - Thomas Hansen
- Leiden Institute of ChemistryLeiden University Einsteinweg 55, 2333 CC Leiden Netherlands
| | - Qing‐Ju Zhang
- The National Research Center for Carbohydrate SynthesisJiangxi Normal University 99 Ziyang Avenue Nanchang 330022 China
| | - De‐Yong Liu
- The National Research Center for Carbohydrate SynthesisJiangxi Normal University 99 Ziyang Avenue Nanchang 330022 China
| | - Yao Sun
- The National Research Center for Carbohydrate SynthesisJiangxi Normal University 99 Ziyang Avenue Nanchang 330022 China
| | - Hao Yan
- The National Research Center for Carbohydrate SynthesisJiangxi Normal University 99 Ziyang Avenue Nanchang 330022 China
| | - Jeroen D. C. Codée
- Leiden Institute of ChemistryLeiden University Einsteinweg 55, 2333 CC Leiden Netherlands
| | - Richard R. Schmidt
- The National Research Center for Carbohydrate SynthesisJiangxi Normal University 99 Ziyang Avenue Nanchang 330022 China
- Department of ChemistryUniversity of Konstanz 78457 Konstanz Germany
| | - Jian‐Song Sun
- The National Research Center for Carbohydrate SynthesisJiangxi Normal University 99 Ziyang Avenue Nanchang 330022 China
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4
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Chen J, Hansen T, Zhang Q, Liu D, Sun Y, Yan H, Codée JDC, Schmidt RR, Sun J. 1‐Picolinyl‐5‐azido Thiosialosides: Versatile Donors for the Stereoselective Construction of Sialyl Linkages. Angew Chem Int Ed Engl 2019; 58:17000-17008. [DOI: 10.1002/anie.201909177] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 08/29/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Jian Chen
- The National Research Center for Carbohydrate SynthesisJiangxi Normal University 99 Ziyang Avenue Nanchang 330022 China
| | - Thomas Hansen
- Leiden Institute of ChemistryLeiden University Einsteinweg 55, 2333 CC Leiden Netherlands
| | - Qing‐Ju Zhang
- The National Research Center for Carbohydrate SynthesisJiangxi Normal University 99 Ziyang Avenue Nanchang 330022 China
| | - De‐Yong Liu
- The National Research Center for Carbohydrate SynthesisJiangxi Normal University 99 Ziyang Avenue Nanchang 330022 China
| | - Yao Sun
- The National Research Center for Carbohydrate SynthesisJiangxi Normal University 99 Ziyang Avenue Nanchang 330022 China
| | - Hao Yan
- The National Research Center for Carbohydrate SynthesisJiangxi Normal University 99 Ziyang Avenue Nanchang 330022 China
| | - Jeroen D. C. Codée
- Leiden Institute of ChemistryLeiden University Einsteinweg 55, 2333 CC Leiden Netherlands
| | - Richard R. Schmidt
- The National Research Center for Carbohydrate SynthesisJiangxi Normal University 99 Ziyang Avenue Nanchang 330022 China
- Department of ChemistryUniversity of Konstanz 78457 Konstanz Germany
| | - Jian‐Song Sun
- The National Research Center for Carbohydrate SynthesisJiangxi Normal University 99 Ziyang Avenue Nanchang 330022 China
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5
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Kooner AS, Yu H, Chen X. Synthesis of N-Glycolylneuraminic Acid (Neu5Gc) and Its Glycosides. Front Immunol 2019; 10:2004. [PMID: 31555264 PMCID: PMC6724515 DOI: 10.3389/fimmu.2019.02004] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 08/07/2019] [Indexed: 12/12/2022] Open
Abstract
Sialic acids constitute a family of negatively charged structurally diverse monosaccharides that are commonly presented on the termini of glycans in higher animals and some microorganisms. In addition to N-acetylneuraminic acid (Neu5Ac), N-glycolyl neuraminic acid (Neu5Gc) is among the most common sialic acid forms in nature. Nevertheless, unlike most animals, human cells loss the ability to synthesize Neu5Gc although Neu5Gc-containing glycoconjugates have been found on human cancer cells and in various human tissues due to dietary incorporation of Neu5Gc. Some pathogenic bacteria also produce Neu5Ac and the corresponding glycoconjugates but Neu5Gc-producing bacteria have yet to be found. In addition to Neu5Gc, more than 20 Neu5Gc derivatives have been found in non-human vertebrates. To explore the biological roles of Neu5Gc and its naturally occurring derivatives as well as the corresponding glycans and glycoconjugates, various chemical and enzymatic synthetic methods have been developed to obtain a vast array of glycosides containing Neu5Gc and/or its derivatives. Here we provide an overview on various synthetic methods that have been developed. Among these, the application of highly efficient one-pot multienzyme (OPME) sialylation systems in synthesizing compounds containing Neu5Gc and derivatives has been proven as a powerful strategy.
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Affiliation(s)
| | - Hai Yu
- Department of Chemistry, University of California, Davis, Davis, CA, United States
| | - Xi Chen
- Department of Chemistry, University of California, Davis, Davis, CA, United States
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6
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Shen KM, Sabbavarapu NM, Fu CY, Jan JT, Wang JR, Hung SC, Lee GB. An integrated microfluidic system for rapid detection and multiple subtyping of influenza A viruses by using glycan-coated magnetic beads and RT-PCR. LAB ON A CHIP 2019; 19:1277-1286. [PMID: 30839009 DOI: 10.1039/c8lc01369a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The influenza A (InfA) virus, which poses a significant global public health threat, is routinely classified into "subtypes" based on viral hemagglutinin (HA) and neuraminidase (NA) antigens. Because there are nearly 200 viral subtypes, current diagnostic approaches require multiplexing or array systems to cover various subtypes of HA and NA. A microfluidic chip featuring a HA × NA array was consequently developed herein for diagnosis and subtyping of InfA viruses via the use of glycan-coated magnetic beads followed by reverse transcription (RT) polymerase chain reaction (PCR). Up to 12 InfA subtypes were simultaneously detected in an automated fashion in less than 100 minutes on this microfluidic platform, representing a significant improvement in analysis speed compared to benchtop RT-PCR and chip-based microarray systems. The limits of detection of the RT-PCR assays ranged from 40 to 3000 copy numbers for the different subtypes of InfA viruses, around two orders of magnitude higher than in previous studies using microfluidic technologies. In summary, the array-type microfluidic chip system provides a rapid, sensitive, and fully automated approach for detection and multiple subtyping of InfA.
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Affiliation(s)
- Kao-Mai Shen
- Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, 30013 Taiwan.
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7
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Zhang Y, Xiang G, He S, Hu Y, Liu Y, Xu L, Xiao G. Orthogonal One-Pot Synthesis of Oligosaccharides Based on Glycosyl ortho-Alkynylbenzoates. Org Lett 2019; 21:2335-2339. [PMID: 30869522 DOI: 10.1021/acs.orglett.9b00617] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
One of the most popular one-pot glycosylation strategies is orthogonal one-pot synthesis, which was mainly based on thioglycosides. Despite its successful application, shortcomings of thioglycosides including aglycon transfers, interference of departing species and unpleasant odor restrict its application scope. Herein, we report a new and efficient orthogonal one-pot synthesis of oligosaccahrides based on glycosyl ortho-alkynylbenzoate, which solves the issues of thioglycoside-based orthogonal one-pot synthesis. Over a dozen of oligosaccharides have been efficiently synthesized by this method.
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Affiliation(s)
- Yunqin Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences , Kunming 650201 , China
| | - Guisheng Xiang
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences , Kunming 650201 , China
| | - Shaojun He
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences , Kunming 650201 , China
| | - Yikao Hu
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences , Kunming 650201 , China
| | - Yanjun Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences , Kunming 650201 , China
| | - Lili Xu
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences , Kunming 650201 , China
| | - Guozhi Xiao
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences , Kunming 650201 , China
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8
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Bagdonaite I, Vakhrushev SY, Joshi HJ, Wandall HH. Viral glycoproteomes: technologies for characterization and outlook for vaccine design. FEBS Lett 2018; 592:3898-3920. [PMID: 29961944 DOI: 10.1002/1873-3468.13177] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 06/13/2018] [Accepted: 06/26/2018] [Indexed: 12/27/2022]
Abstract
It has long been known that surface proteins of most enveloped viruses are covered with glycans. It has furthermore been demonstrated that glycosylation is essential for propagation and immune evasion for many viruses. The recent development of high-resolution mass spectrometry techniques has enabled identification not only of the precise structures but also the positions of such post-translational modifications on viruses, revealing substantial differences in extent of glycosylation and glycan maturation for different classes of viruses. In-depth characterization of glycosylation and other post-translational modifications of viral envelope glycoproteins is essential for rational design of vaccines and antivirals. In this Review, we provide an overview of techniques used to address viral glycosylation and summarize information on glycosylation of enveloped viruses representing ongoing public health challenges. Furthermore, we discuss how knowledge on glycosylation can be translated to means to prevent and combat viral infections.
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Affiliation(s)
- Ieva Bagdonaite
- Department of Cellular and Molecular Medicine, Copenhagen Center for Glycomics, University of Copenhagen, Denmark
| | - Sergey Y Vakhrushev
- Department of Cellular and Molecular Medicine, Copenhagen Center for Glycomics, University of Copenhagen, Denmark
| | - Hiren J Joshi
- Department of Cellular and Molecular Medicine, Copenhagen Center for Glycomics, University of Copenhagen, Denmark
| | - Hans H Wandall
- Department of Cellular and Molecular Medicine, Copenhagen Center for Glycomics, University of Copenhagen, Denmark
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9
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Kulkarni SS, Wang CC, Sabbavarapu NM, Podilapu AR, Liao PH, Hung SC. "One-Pot" Protection, Glycosylation, and Protection-Glycosylation Strategies of Carbohydrates. Chem Rev 2018; 118:8025-8104. [PMID: 29870239 DOI: 10.1021/acs.chemrev.8b00036] [Citation(s) in RCA: 181] [Impact Index Per Article: 30.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Carbohydrates, which are ubiquitously distributed throughout the three domains of life, play significant roles in a variety of vital biological processes. Access to unique and homogeneous carbohydrate materials is important to understand their physical properties, biological functions, and disease-related features. It is difficult to isolate carbohydrates in acceptable purity and amounts from natural sources. Therefore, complex saccharides with well-defined structures are often most conviently accessed through chemical syntheses. Two major hurdles, regioselective protection and stereoselective glycosylation, are faced by carbohydrate chemists in synthesizing these highly complicated molecules. Over the past few years, there has been a radical change in tackling these problems and speeding up the synthesis of oligosaccharides. This is largely due to the development of one-pot protection, one-pot glycosylation, and one-pot protection-glycosylation protocols and streamlined approaches to orthogonally protected building blocks, including those from rare sugars, that can be used in glycan coupling. In addition, new automated strategies for oligosaccharide syntheses have been reported not only for program-controlled assembly on solid support but also by the stepwise glycosylation in solution phase. As a result, various sugar molecules with highly complex, large structures could be successfully synthesized. To summarize these recent advances, this review describes the methodologies for one-pot protection and their one-pot glycosylation into the complex glycans and the chronological developments associated with automated syntheses of oligosaccharides.
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Affiliation(s)
- Suvarn S Kulkarni
- Department of Chemistry , Indian Institute of Technology Bombay , Mumbai 400076 , India
| | | | | | - Ananda Rao Podilapu
- Department of Chemistry , Indian Institute of Technology Bombay , Mumbai 400076 , India
| | - Pin-Hsuan Liao
- Institute of Chemistry , Academia Sinica , Taipei 115 , Taiwan
| | - Shang-Cheng Hung
- Genomics Research Center , Academia Sinica , Taipei 115 , Taiwan
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10
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Abstract
Investigations of methodologies aimed on improving the stereoselective synthesis of sialosides and the efficient assembly of sialic acid glycoconjugates has been the mission of dedicated research groups from the late 1960s. This review presents major accomplishments in the field, with the emphasis on significant breakthroughs and influential synthetic strategies of the last decade.
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11
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Podvalnyy NM, Malysheva NN, Panova MV, Zinin AI, Chizhov AO, Orlova AV, Kononov LO. Stereoselective sialylation with O-trifluoroacetylated thiosialosides: hydrogen bonding involved? Carbohydr Res 2017; 451:12-28. [PMID: 28934626 DOI: 10.1016/j.carres.2017.09.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 09/05/2017] [Accepted: 09/05/2017] [Indexed: 01/05/2023]
Abstract
A series of novel sialyl donors containing O-trifluoroacetyl (TFA) groups at various positions was synthesized. The choice of protecting groups in sialyl donors was based on hypothesis that variations in ability of different acyl groups to act as hydrogen bond acceptors would influence the supramolecular structure of reaction mixture (solution structure), hence the outcome of sialylation. These glycosyl donors were examined in the model glycosylation of the primary hydroxyl group of 1,2:3,4-di-O-isopropylidene-α-D-galactopyranose in comparison with sialyl donors without O-TFA groups. The presence of O-TFA groups in a sialyl donor strongly affected the outcome of sialylation. Several sialyl donors studied showed promising results: yields of disaccharides can be as high as 86% as can be the stereoselectivities (α/β up to 15:1). The results obtained suggest that varying acyl O-protecting groups in sialyl donor may result in dramatic changes in the outcome of sialylation although further studies are required to dissect the influence of intermolecular hydrogen bonding and intramolecular substituent effects related to variations of electron-withdrawing properties of different acyl groups.
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Affiliation(s)
- Nikita M Podvalnyy
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, Leninsky prosp., 47, 119991 Moscow, Russian Federation
| | - Nelly N Malysheva
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, Leninsky prosp., 47, 119991 Moscow, Russian Federation
| | - Maria V Panova
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, Leninsky prosp., 47, 119991 Moscow, Russian Federation
| | - Alexander I Zinin
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, Leninsky prosp., 47, 119991 Moscow, Russian Federation
| | - Alexander O Chizhov
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, Leninsky prosp., 47, 119991 Moscow, Russian Federation
| | - Anna V Orlova
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, Leninsky prosp., 47, 119991 Moscow, Russian Federation
| | - Leonid O Kononov
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, Leninsky prosp., 47, 119991 Moscow, Russian Federation.
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12
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Ogata M, Koizumi A, Otsubo T, Ikeda K, Sakamoto M, Aita R, Kato T, Park EY, Yamanaka T, Hidari KIPJ. Chemoenzymatic synthesis and characterization of N-glycolylneuraminic acid-carrying sialoglycopolypeptides as effective inhibitors against equine influenza virus hemagglutination. Biosci Biotechnol Biochem 2017; 81:1520-1528. [PMID: 28521605 DOI: 10.1080/09168451.2017.1325315] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A series of novel sialoglycopolypeptides carrying N-glycolylneuraminic acid (Neu5Gc)-containing trisaccharides having α(2 → 3)- and α(2 → 6)-linkages in the side chains of γ-polyglutamic acid (γ-PGA) were designed as competitive inhibitors against equine influenza viruses (EIV), which critically recognize the Neu5Gc residue for receptor binding. Using horse red blood cells (HRBC) we successfully evaluated the binding activity of the multivalent Neu5Gc ligands to both equine and canine influenza viruses in the hemagglutination inhibition (HI) assay. Our findings show the multivalent α2,3-linked Neu5Gc-ligands (3a-c and 7) selectively inhibit hemagglutination mediated by both influenza viruses and display a strong inhibitory activity. Our results indicate that the multivalent Neu5Gc-ligands can be used as novel probes to elucidate the mechanism of infection/adhesion of Neu5Gc-binding influenza viruses.
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Affiliation(s)
- Makoto Ogata
- a Department of Chemistry and Biochemistry, National Institute of Technology , Fukushima College , Iwaki , Japan
| | - Ami Koizumi
- a Department of Chemistry and Biochemistry, National Institute of Technology , Fukushima College , Iwaki , Japan
| | - Tadamune Otsubo
- b Department of Organic Chemistry , School of Pharmaceutical Sciences, Hiroshima International University , Kure-shi , Japan
| | - Kiyoshi Ikeda
- b Department of Organic Chemistry , School of Pharmaceutical Sciences, Hiroshima International University , Kure-shi , Japan
| | - Mao Sakamoto
- a Department of Chemistry and Biochemistry, National Institute of Technology , Fukushima College , Iwaki , Japan
| | - Rena Aita
- a Department of Chemistry and Biochemistry, National Institute of Technology , Fukushima College , Iwaki , Japan
| | - Tatsuya Kato
- c Research Institute of Green science and Technology , Shizuoka University , Suruga-ku , Japan
| | - Enoch Y Park
- c Research Institute of Green science and Technology , Shizuoka University , Suruga-ku , Japan
| | - Takashi Yamanaka
- d Epizootic Research Center, Equine Research Institute , Japan Racing Association , Tochigi , Japan
| | - Kazuya I P J Hidari
- e Department of Food and Nutrition, Junior College Division , University of Aizu , Yahata , Japan
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13
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Buda S, Crich D. Oxidative Deamination of N-Acetyl Neuraminic Acid: Substituent Effects and Mechanism. J Am Chem Soc 2016; 138:1084-92. [PMID: 26731511 PMCID: PMC4732528 DOI: 10.1021/jacs.5b13015] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A study of the mechanism of the oxidative deamination of the N-nitroso-N-acetyl sialyl glycosides leading with overall retention of configuration to the corresponding 2-keto-3-deoxy-D-glycero-D-galacto-nonulopyranosidonic acid (KDN) glycosides is described, making use of a series of differentially O-protected N-nitroso-N-acetyl sialyl glycosides and of isotopic labeling studies. No evidence is found for stereodirecting participation by ester groups at the 4- and 7-positions. Comparisons are drawn with oxidative deamination reactions of 4-amino-4-deoxy and 2-amino-2-deoxy hexopyranosides and a common mechanism is formulated involving the intermediacy of 1-oxabicyclo[3.1.0]hexyl oxonium ions following participation by the pyranoside ring oxygen. A minor reaction pathway has been uncovered by labeling studies in the β-thiosialosides that results in the exchange of the 4-O-acetyl group by the glacial acetic acid that serves as external nucleophile in the general oxidative deamination process. A mechanism is proposed for this exchange involving participation by the thioglycoside at the level of an intermediate diazoalkane.
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Affiliation(s)
- Szymon Buda
- Department of Chemistry, Wayne State University, Detroit, MI 48202, USA
| | - David Crich
- Department of Chemistry, Wayne State University, Detroit, MI 48202, USA
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14
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Zulueta MML, Janreddy D, Hung SC. One-Pot Methods for the Protection and Assembly of Sugars. Isr J Chem 2015. [DOI: 10.1002/ijch.201400171] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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15
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Mandhapati AR, Rajender S, Shaw J, Crich D. The isothiocyanato moiety: an ideal protecting group for the stereoselective synthesis of sialic acid glycosides and subsequent diversification. Angew Chem Int Ed Engl 2015; 54:1275-8. [PMID: 25446629 PMCID: PMC4300277 DOI: 10.1002/anie.201409797] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Indexed: 01/14/2023]
Abstract
The preparation of a crystalline, peracetyl adamantanyl thiosialoside donor protected by an isothiocyanate group is described. On activation at -78 °C in the presence of typical carbohydrate acceptors, this donor gives high yields of the corresponding sialosides with exquisite α-selectivity. The high selectivity extends to the 4-O-benzyl-protected 3-OH acceptors, which are typically less reactive and selective than galactose 3,4-diols. Treatment of the α-sialosides with tris(trimethylsilyl)silane or allyltris(trimethylsilyl)silane results in replacement of the C5-N5 bond by a C-H or a C-C bond. The reaction of the isothiocyanate-protected sialosides with thioacids generates amides, while reaction with an amine gives a thiourea, which can be converted into a guanidine. The very high α-selectivities observed with the new donor and the rich chemistry of the isothiocyante function considerably extend the scope for optimization at the sialoside 5-position.
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Affiliation(s)
- Appi Reddy Mandhapati
- Department of Chemistry, Wayne State University, Detroit, MI 48202, USA, Fax: (+) 313 577 8822, Homepage: chem.wayne.edu/crichgroup
| | - Salla Rajender
- Department of Chemistry, Wayne State University, Detroit, MI 48202, USA, Fax: (+) 313 577 8822, Homepage: chem.wayne.edu/crichgroup
| | - Jonathan Shaw
- Department of Chemistry, Wayne State University, Detroit, MI 48202, USA, Fax: (+) 313 577 8822, Homepage: chem.wayne.edu/crichgroup
| | - David Crich
- Department of Chemistry, Wayne State University, Detroit, MI 48202, USA, Fax: (+) 313 577 8822, Homepage: chem.wayne.edu/crichgroup
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AL-Shuaeeb RAA, Galvani G, Bernadat G, Brion JD, Alami M, Messaoudi S. Diversity-oriented synthesis of fused thioglycosyl benzo[e][1,4]oxathiepin-5-ones and benzo[f][1,4]thiazepin-5(2H)-ones by a sequence of palladium-catalyzed glycosyl thiol arylation and deprotection–lactonization reactions. Org Biomol Chem 2015; 13:10904-16. [DOI: 10.1039/c5ob01603g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient synthesis of thioglycosylated benzo[e][1,4]-oxathiepin-5-one and benzothiazepinone derivatives has been reported.
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Affiliation(s)
| | - Gilles Galvani
- Univ. Paris-Sud
- CNRS
- BioCIS-UMR 8076
- Laboratoire de Chimie Thérapeutique
- Equipe Labellisée Ligue Contre Le Cancer
| | - Guillaume Bernadat
- Univ. Paris-Sud
- CNRS
- BioCIS-UMR 8076
- Laboratoire de Chimie Thérapeutique
- Equipe Labellisée Ligue Contre Le Cancer
| | - Jean-Daniel Brion
- Univ. Paris-Sud
- CNRS
- BioCIS-UMR 8076
- Laboratoire de Chimie Thérapeutique
- Equipe Labellisée Ligue Contre Le Cancer
| | - Mouad Alami
- Univ. Paris-Sud
- CNRS
- BioCIS-UMR 8076
- Laboratoire de Chimie Thérapeutique
- Equipe Labellisée Ligue Contre Le Cancer
| | - Samir Messaoudi
- Univ. Paris-Sud
- CNRS
- BioCIS-UMR 8076
- Laboratoire de Chimie Thérapeutique
- Equipe Labellisée Ligue Contre Le Cancer
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17
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Mandhapati AR, Rajender S, Shaw J, Crich D. The Isothiocyanato Moiety: An Ideal Protecting Group for the Stereoselective Synthesis of Sialic Acid Glycosides and Subsequent Diversification. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201409797] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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