1
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Kumar N, Gurawa A, Yadav A, Kashyap S. Influence of C-4 Axial/Equatorial Configuration and Neighboring Group/Remote Group Participation (NGP/RGP) Driven Conformational Evidence in Chemoselective Activation of Glycals. Org Lett 2024; 26:7072-7077. [PMID: 39116290 DOI: 10.1021/acs.orglett.4c02724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
We herein reveal the possibility of the C-4 neighboring group/remote group participation (NGP/RGP) facilitating the stabilization of the anomeric center via dioxolenium intermediates in the chemoselective activation of glycal donors. We further realized that the axial/equatorial configuration of the C-4 group in the galacto- and gluco-glycal series enables diverse pathways to give direct 1,2-addition or Ferrier rearrangement, respectively. A proof-of-principle for stereoselective glycosylation was amply illustrated by employing carbohydrates, amino acids, natural products, and bioactive molecules to develop 2-deoxy-glycan analogs.
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Affiliation(s)
- Nitin Kumar
- Carbohydrate Chemistry Research Laboratory (CCRL), Department of Chemistry, Malaviya National Institute of Technology Jaipur 302017, India
| | - Aakanksha Gurawa
- Institut Charles Gerhardt Montpellier, Univ Montpellier, CNRS, 1919, route de Mende, 34294 Cedex 5 Montpellier, France
| | - Ankit Yadav
- Carbohydrate Chemistry Research Laboratory (CCRL), Department of Chemistry, Malaviya National Institute of Technology Jaipur 302017, India
| | - Sudhir Kashyap
- Carbohydrate Chemistry Research Laboratory (CCRL), Department of Chemistry, Malaviya National Institute of Technology Jaipur 302017, India
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2
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Moons PH, Ter Braak F, de Kleijne FFJ, Bijleveld B, Corver SJR, Houthuijs KJ, Almizori HR, Berden G, Martens J, Oomens J, White PB, Boltje TJ. Characterization of elusive rhamnosyl dioxanium ions and their application in complex oligosaccharide synthesis. Nat Commun 2024; 15:2257. [PMID: 38480691 PMCID: PMC10937939 DOI: 10.1038/s41467-024-46522-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 02/29/2024] [Indexed: 03/17/2024] Open
Abstract
Attaining complete anomeric control is still one of the biggest challenges in carbohydrate chemistry. Glycosyl cations such as oxocarbenium and dioxanium ions are key intermediates of glycosylation reactions. Characterizing these highly-reactive intermediates and understanding their glycosylation mechanisms are essential to the stereoselective synthesis of complex carbohydrates. Although C-2 acyl neighbouring-group participation has been well-studied, the reactive intermediates in more remote participation remain elusive and are challenging to study. Herein, we report a workflow that is utilized to characterize rhamnosyl 1,3-bridged dioxanium ions derived from C-3 p-anisoyl esterified donors. First, we use a combination of quantum-chemical calculations and infrared ion spectroscopy to determine the structure of the cationic glycosylation intermediate in the gas-phase. In addition, we establish the structure and exchange kinetics of highly-reactive, low-abundance species in the solution-phase using chemical exchange saturation transfer, exchange spectroscopy, correlation spectroscopy, heteronuclear single-quantum correlation, and heteronuclear multiple-bond correlation nuclear magnetic resonance spectroscopy. Finally, we apply C-3 acyl neighbouring-group participation to the synthesis of complex bacterial oligosaccharides. This combined approach of finding answers to fundamental physical-chemical questions and their application in organic synthesis provides a robust basis for elucidating highly-reactive intermediates in glycosylation reactions.
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Affiliation(s)
- Peter H Moons
- Synthetic Organic Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Floor Ter Braak
- Synthetic Organic Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Frank F J de Kleijne
- Synthetic Organic Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Bart Bijleveld
- Synthetic Organic Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Sybren J R Corver
- Synthetic Organic Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Kas J Houthuijs
- FELIX laboratory, Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 7, 6525 ED, Nijmegen, The Netherlands
| | - Hero R Almizori
- Synthetic Organic Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Giel Berden
- FELIX laboratory, Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 7, 6525 ED, Nijmegen, The Netherlands
| | - Jonathan Martens
- FELIX laboratory, Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 7, 6525 ED, Nijmegen, The Netherlands
| | - Jos Oomens
- FELIX laboratory, Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 7, 6525 ED, Nijmegen, The Netherlands
| | - Paul B White
- Synthetic Organic Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands.
| | - Thomas J Boltje
- Synthetic Organic Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands.
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3
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Gao Y, Chen W, Zhao J, Yang M, Zhang Y, Chen C, Yao L, Xu J, Wang F, Zhang B, Gu G, Tang B, Cai F. Exploring the Dual Functions of Distal Acyl Group Direction in Various Nucleophilic Environments. J Org Chem 2024; 89:2375-2396. [PMID: 38288704 DOI: 10.1021/acs.joc.3c02397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
A universal glycosylation strategy could significantly simplify glycoside synthesis. One approach to achieving this goal is through acyl group direction for the corresponding 1,2-, 1,3-, 1,4-, or 1,6-trans glycosylation; however, this approach has been challenging for glycosidic bonds that require distal equatorial-acyl group direction. We developed an approach in weakly nucleophilic environments for selective 1,4-trans glycosylation directed by the equatorial-4-O-acyl group. Here, we explored this condition in other distal acyl groups and found that, besides 1,n-trans direction, acyl groups also mediated hydrogen bonding between acyl groups and alcohols. The latter showed a diverse effect and classified the acyl group direction into axial and equatorial categories. Corresponding glycosylation conditions were distinguished as guidance for acyl group direction from either category. Hence, acyl group direction may serve as a general glycosylation strategy.
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Affiliation(s)
- Yongtao Gao
- National Glycoengineering Research Center and Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, 72 Binhai Rd, Qingdao 266237, China
| | - Wenjie Chen
- National Glycoengineering Research Center and Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, 72 Binhai Rd, Qingdao 266237, China
| | - Juan Zhao
- National Glycoengineering Research Center and Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, 72 Binhai Rd, Qingdao 266237, China
| | - Min Yang
- Center for Analysis and Characterization, School of Physical Science and Technology, ShanghaiTech University, 393 Huaxia Middle Rd, Shanghai 201210, China
| | - Yongliang Zhang
- National Glycoengineering Research Center and Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, 72 Binhai Rd, Qingdao 266237, China
| | - Changsheng Chen
- National Glycoengineering Research Center and Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, 72 Binhai Rd, Qingdao 266237, China
| | - Linbin Yao
- Faculty of Science and Engineering, The University of Nottingham Ningbo China, 199 Taikang E Rd, Ningbo 315100, China
| | - Jiayuan Xu
- Faculty of Science and Engineering, The University of Nottingham Ningbo China, 199 Taikang E Rd, Ningbo 315100, China
| | - Fei Wang
- National Glycoengineering Research Center and Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, 72 Binhai Rd, Qingdao 266237, China
| | - Bangzhi Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Guofeng Gu
- National Glycoengineering Research Center and Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, 72 Binhai Rd, Qingdao 266237, China
| | - Bencan Tang
- Faculty of Science and Engineering, The University of Nottingham Ningbo China, 199 Taikang E Rd, Ningbo 315100, China
| | - Feng Cai
- National Glycoengineering Research Center and Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, 72 Binhai Rd, Qingdao 266237, China
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
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4
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Weng W, Ren S, Teng C, Guo J, Guo Q, Zhang W, Zong C, Ding N. Chemoenzymatic synthesis and immunological evaluation of sialyl-Thomsen-Friedenreich (sTF) antigen conjugate to CRM197. Bioorg Med Chem 2024; 100:117615. [PMID: 38342079 DOI: 10.1016/j.bmc.2024.117615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/13/2024]
Abstract
sTF (sialyl-Thomsen-Friedenreich) is a type of tumor-associated carbohydrate antigens (TACAs) and is highly expressed in various human malignancies. To validate if sTF could be a valuable molecular target for future cancer vaccine development, in this work the sTF antigen was prepared by adopting a strategy combining chemical and enzymatic methods, and then was covalently conjugated to a carrier protein, CRM197. The preliminary immunological evaluation, performed on BALB/c mice, revealed that the sTF-CRM197 conjugate elicited high titers of specific IgG antibodies. FACS experiments showed that the antisera induced by sTF-CRM197 conjugate could specifically recognize and bind to sTF-positive cancer cells T-47D. Furthermore, the conjugate mediated effective and specific antibody-mediated complement-dependent cytotoxicity (CDC).
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Affiliation(s)
- Weizhao Weng
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Sumei Ren
- Research Center of Basic Medicine, Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Changcai Teng
- School of Pharmaceutical Sciences, College of Marine Science, Hainan University, Haikou 570228, China
| | - Jia Guo
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Qiuyu Guo
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Wei Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Chengli Zong
- School of Pharmaceutical Sciences, College of Marine Science, Hainan University, Haikou 570228, China.
| | - Ning Ding
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
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5
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Remmerswaal W, Elferink H, Houthuijs KJ, Hansen T, ter Braak F, Berden G, van der Vorm S, Martens J, Oomens J, van der Marel GA, Boltje TJ, Codée JDC. Anomeric Triflates versus Dioxanium Ions: Different Product-Forming Intermediates from 3-Acyl Benzylidene Mannosyl and Glucosyl Donors. J Org Chem 2024; 89:1618-1625. [PMID: 38235652 PMCID: PMC10845153 DOI: 10.1021/acs.joc.3c02262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/19/2023] [Accepted: 12/28/2023] [Indexed: 01/19/2024]
Abstract
Minimal structural differences in the structure of glycosyl donors can have a tremendous impact on their reactivity and the stereochemical outcome of their glycosylation reactions. Here, we used a combination of systematic glycosylation reactions, the characterization of potential reactive intermediates, and in-depth computational studies to study the disparate behavior of glycosylation systems involving benzylidene glucosyl and mannosyl donors. While these systems have been studied extensively, no satisfactory explanations are available for the differences observed between the 3-O-benzyl/benzoyl mannose and glucose donor systems. The potential energy surfaces of the different reaction pathways available for these donors provide an explanation for the contrasting behavior of seemingly very similar systems. Evidence has been provided for the intermediacy of benzylidene mannosyl 1,3-dioxanium ions, while the formation of the analogous 1,3-glucosyl dioxanium ions is thwarted by a prohibitively strong flagpole interaction of the C-2-O-benzyl group with the C-5 proton in moving toward the transition state, in which the glucose ring adopts a B2,5-conformation. This study provides an explanation for the intermediacy of 1,3-dioxanium ions in the mannosyl system and an answer to why these do not form from analogous glucosyl donors.
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Affiliation(s)
- Wouter
A. Remmerswaal
- Leiden
Institute of Chemistry, Leiden University, Einsteinweg 55, Leiden 2300 RA, The Netherlands
| | - Hidde Elferink
- Institute
for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen 6525 AJ, The Netherlands
| | - Kas J. Houthuijs
- Institute
for Molecules and Materials, FELIX Laboratory, Radboud University, Toernooiveld 7, Nijmegen 6525 ED, The Netherlands
| | - Thomas Hansen
- Leiden
Institute of Chemistry, Leiden University, Einsteinweg 55, Leiden 2300 RA, The Netherlands
- Department
of Chemistry and Pharmaceutical Sciences, Amsterdam Institute of Molecular
and Life Sciences (AIMMS), Vrije Universiteit
Amsterdam, De Boelelaan
1108, Amsterdam 1081 HZ, The Netherlands
| | - Floor ter Braak
- Institute
for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen 6525 AJ, The Netherlands
| | - Giel Berden
- Institute
for Molecules and Materials, FELIX Laboratory, Radboud University, Toernooiveld 7, Nijmegen 6525 ED, The Netherlands
| | - Stefan van der Vorm
- Leiden
Institute of Chemistry, Leiden University, Einsteinweg 55, Leiden 2300 RA, The Netherlands
| | - Jonathan Martens
- Institute
for Molecules and Materials, FELIX Laboratory, Radboud University, Toernooiveld 7, Nijmegen 6525 ED, The Netherlands
| | - Jos Oomens
- Institute
for Molecules and Materials, FELIX Laboratory, Radboud University, Toernooiveld 7, Nijmegen 6525 ED, The Netherlands
| | | | - Thomas J. Boltje
- Institute
for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen 6525 AJ, The Netherlands
| | - Jeroen D. C. Codée
- Leiden
Institute of Chemistry, Leiden University, Einsteinweg 55, Leiden 2300 RA, The Netherlands
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6
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Zhang Y, Chen C, Gao Y, Yang M, He Z, Zhang B, Gu G, Tang B, Cai F. β-l-Rhamnosylation and β-d-Mannosylation Mediated by 4- O-Ester Groups in a Weakly Nucleophilic Environment. Org Lett 2023; 25:7120-7125. [PMID: 37738091 DOI: 10.1021/acs.orglett.3c02566] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
eq-4-O-Acyl group directed β-rhamnosylation and β-mannosylation are achieved in a carborane or BARF anion formed weakly nucleophilic environment with the assistance of a 2,3-orthocarbonate group. The 4-O-acyl group plays a critical role in directing the β-selectivity, and the weakly coordinating anion is essential to amplify this direction. The orthocarbonate group could be readily removed with 1,3-propanediol in the presence of BF3·Et2O.
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Affiliation(s)
- Yongliang Zhang
- National Glycoengineering Research Center and Shandong Key laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, 72 Binhai Rd Qingdao 266237, China
| | - Changsheng Chen
- National Glycoengineering Research Center and Shandong Key laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, 72 Binhai Rd Qingdao 266237, China
| | - Yongtao Gao
- National Glycoengineering Research Center and Shandong Key laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, 72 Binhai Rd Qingdao 266237, China
| | - Min Yang
- Center for Analysis and Characterization, School of Physical Science and Technology, ShanghaiTech University, 393 Huaxia Middle Rd, Shanghai 201210, China
| | - Zehuan He
- National Glycoengineering Research Center and Shandong Key laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, 72 Binhai Rd Qingdao 266237, China
| | - Bangzhi Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Guofeng Gu
- National Glycoengineering Research Center and Shandong Key laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, 72 Binhai Rd Qingdao 266237, China
| | - Bencan Tang
- Faculty of Science and Engineering, The University of Nottingham Ningbo China, 199 Taikang E Rd, Ningbo 315100, China
| | - Feng Cai
- National Glycoengineering Research Center and Shandong Key laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, 72 Binhai Rd Qingdao 266237, China
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
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7
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Kumar M, Kumar N, Gurawa A, Kashyap S. Protecting group enabled stereocontrolled approach for rare-sugars talose/gulose via dual-ruthenium catalysis. Carbohydr Res 2023; 523:108705. [PMID: 36370626 DOI: 10.1016/j.carres.2022.108705] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 10/08/2022] [Accepted: 10/11/2022] [Indexed: 01/28/2023]
Abstract
We herein report a convenient and highly stereocontrolled approach for rare and vital ᴅ-talo and ᴅ-gulo sugars directly from economical ᴅ-galactal through dual ruthenium-catalysis. The stereo-divergent strategy involves Ru(III)Cl3-catalyzed Ferrier glycosylation of ᴅ-galactal to give 2,3-unsaturated ᴅ-galactopyranoside, further selective functionalization of C-4 and C-6 position with diverse protecting groups and dihydroxylation with Ru(VIII)O4 generated in situ providing access to talo/gulo isomers. The α-anomeric stereoselectivity and syn-diastereoselectivity in glycosylation-dihydroxylation steps have been predominantly achieved by judicious selection of stereoelectronically diverse protecting groups. The synthetic utility of the dual-ruthenium catalysis was demonstrated for efficiently assembling the ᴅ-talose and/or ᴅ-gulose sugars in natural products and bioactive scaffolds.
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Affiliation(s)
- Manoj Kumar
- Carbohydrate Chemistry Research Laboratory (CCRL), Department of Chemistry, Malaviya National Institute of Technology (MNIT), Jaipur, 302017, India
| | - Nitin Kumar
- Carbohydrate Chemistry Research Laboratory (CCRL), Department of Chemistry, Malaviya National Institute of Technology (MNIT), Jaipur, 302017, India
| | - Aakanksha Gurawa
- Carbohydrate Chemistry Research Laboratory (CCRL), Department of Chemistry, Malaviya National Institute of Technology (MNIT), Jaipur, 302017, India
| | - Sudhir Kashyap
- Carbohydrate Chemistry Research Laboratory (CCRL), Department of Chemistry, Malaviya National Institute of Technology (MNIT), Jaipur, 302017, India.
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8
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Greis K, Leichnitz S, Kirschbaum C, Chang CW, Lin MH, Meijer G, von Helden G, Seeberger PH, Pagel K. The Influence of the Electron Density in Acyl Protecting Groups on the Selectivity of Galactose Formation. J Am Chem Soc 2022; 144:20258-20266. [PMID: 36289569 PMCID: PMC9650713 DOI: 10.1021/jacs.2c05859] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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The stereoselective formation of 1,2-cis-glycosidic
bonds is a major bottleneck in the synthesis of carbohydrates. We
here investigate how the electron density in acyl protecting groups
influences the stereoselectivity by fine-tuning the efficiency of
remote participation. Electron-rich C4-pivaloylated galactose building
blocks show an unprecedented α-selectivity. The trifluoroacetylated
counterpart with electron-withdrawing groups, on the other hand, exhibits
a lower selectivity. Cryogenic infrared spectroscopy in helium nanodroplets
and density functional theory calculations revealed the existence
of dioxolenium-type intermediates for this reaction, which suggests
that remote participation of the pivaloyl protecting group is the
origin of the high α-selectivity of the pivaloylated building
blocks. According to these findings, an α-selective galactose
building block for glycosynthesis is developed based on rational considerations
and is subsequently employed in automated glycan assembly exhibiting
complete stereoselectivity. Based on the obtained selectivities in
the glycosylation reactions and the results from infrared spectroscopy
and density functional theory, we suggest a mechanism by which these
reactions could proceed.
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Affiliation(s)
- Kim Greis
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
- Fritz Haber Institute of the Max Planck Society, 14195 Berlin, Germany
| | - Sabrina Leichnitz
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
- Max Planck Institute of Colloids and Interfaces, 14476 Potsdam, Germany
| | - Carla Kirschbaum
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
- Fritz Haber Institute of the Max Planck Society, 14195 Berlin, Germany
| | - Chun-Wei Chang
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Mei-Huei Lin
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
- Max Planck Institute of Colloids and Interfaces, 14476 Potsdam, Germany
| | - Gerard Meijer
- Fritz Haber Institute of the Max Planck Society, 14195 Berlin, Germany
| | - Gert von Helden
- Fritz Haber Institute of the Max Planck Society, 14195 Berlin, Germany
| | - Peter H. Seeberger
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
- Max Planck Institute of Colloids and Interfaces, 14476 Potsdam, Germany
| | - Kevin Pagel
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
- Fritz Haber Institute of the Max Planck Society, 14195 Berlin, Germany
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9
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Liu X, Song Y, Liu A, Zhou Y, Zhu Q, Lin Y, Sun H, Zhu K, Liu W, Ding N, Xie W, Sun H, Yu B, Xu P, Li W. More than a Leaving Group: N-Phenyltrifluoroacetimidate as a Remote Directing Group for Highly α-Selective 1,2-cis Glycosylation. Angew Chem Int Ed Engl 2022; 61:e202201510. [PMID: 35266604 DOI: 10.1002/anie.202201510] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Indexed: 12/31/2022]
Abstract
The anomeric configuration can greatly affect the biological functions and activities of carbohydrates. Herein, we report that N-phenyltrifluoroacetimidoyl (PTFAI), a well-known leaving group for catalytic glycosylation, can act as a stereodirecting group for the challenging 1,2-cis α-glycosylation. Utilizing rapidly accessible 1,6-di-OPTFAI glycosyl donors, TMSOTf-catalyzed glycosylation occurred with excellent α-selectivity and broad substrate scope, and the remaining 6-OPTFAI group can be cleaved chemoselectively. The remote participation of 6-OPTFAI is supported by the first characterization of the crucial 1,6-bridged bicyclic oxazepinium ion intermediates by low-temperature NMR spectroscopy. These cations were found to be relatively stable and mainly responsible for the present stereoselectivities. Further application is highlighted in glycosylation reactions toward trisaccharide heparins as well as the convergent synthesis of chacotriose derivatives using a bulky 2,4-di-O-glycosylated donor.
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Affiliation(s)
- Xianglai Liu
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu, 211198, China
| | - Yingying Song
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu, 211198, China
| | - Ao Liu
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu, 211198, China
| | - Yueer Zhou
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu, 211198, China
| | - Qian Zhu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Yetong Lin
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu, 211198, China
| | - Huiyong Sun
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu, 211198, China
| | - Kaidi Zhu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Wei Liu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Ning Ding
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 200032, China
| | - Weijia Xie
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu, 211198, China
| | - Haopeng Sun
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu, 211198, China
| | - Biao Yu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Peng Xu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Wei Li
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, Jiangsu, 211198, China
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10
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Liu X, Song Y, Liu A, Zhou Y, Zhu Q, Lin Y, Sun H, Zhu K, Liu W, Ding N, Xie W, Sun H, Yu B, Xu P, Li W. More than a Leaving Group: N‐Phenyltrifluoroacetimidate as a Remote Directing Group for Highly α‐Selective 1,2‐cis Glycosylation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xianglai Liu
- China Pharmaceutical University School of Pharmacy Department of Medicinal Chemistry CHINA
| | - Yingying Song
- China Pharmaceutical University School of Pharmacy Department of Medicinal Chemistry CHINA
| | - Ao Liu
- China Pharmaceutical University School of Pharmacy Department of Medicinal Chemistry CHINA
| | - Yueer Zhou
- China Pharmaceutical University School of Pharmacy Department of Medicinal Chemistry CHINA
| | - Qian Zhu
- Shanghai Institute of Organic Chemistry State Key Laboratory of Bioorganic and Natural Products Chemistry CHINA
| | - Yetong Lin
- China Pharmaceutical University School of Pharmacy Department of Medicinal Chemistry CHINA
| | - Huiyong Sun
- China Pharmaceutical University School of Pharmacy Department of Medicinal Chemistry CHINA
| | - Kaidi Zhu
- Shanghai Institute of Organic Chemistry State Key Laboratory of Bioorganic and Natural Products Chemistry CHINA
| | - Wei Liu
- Shanghai Institute of Organic Chemistry State Key Laboratory of Bioorganic and Natural Products Chemistry CHINA
| | - Ning Ding
- Fudan University Department of Medicinal Chemistry CHINA
| | - Weijia Xie
- China Pharmaceutical University School of Pharmacy Department of Medicinal Chemistry CHINA
| | - Haopeng Sun
- China Pharmaceutical University School of Pharmacy Department of Medicinal Chemistry CHINA
| | - Biao Yu
- Shanghai Institute of Organic Chemistry State Key Laboratory of Bioorganic and Natural Products Chemistry CHINA
| | - Peng Xu
- Shanghai Institute of Organic Chemistry State Key Laboratory of Bioorganic and Natural Products Chemistry CHINA
| | - Wei Li
- China Pharmaceutical University School of Pharmacy Department of Medicinal Chemistry 639 Longmian Avenue 211198 Nanjing CHINA
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11
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Yangxing S, Yanzhi L, Yanlai C, Nengzhong W, Shaohua X, Mingguo L, Hui Y. Research Advances in Functional Group-Directed Stereoselective Glycosylation. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202204050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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12
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Yang W, Zhang J, Yang CW, Ramadan S, Staples R, Huang X. Long-Range Stereodirecting Participation across a Glycosidic Linkage in Glycosylation Reactions. Org Lett 2021; 23:1153-1156. [PMID: 33351642 PMCID: PMC8120453 DOI: 10.1021/acs.orglett.0c03394] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The formation of an unprecedented 12-membered macrocyclic ketal through the long-range participation of a levulinoyl group across a glycosidic linkage was observed in glycosylation reactions. This finding indicated that stereodirecting participation is not limited to groups within the glycan ring being activated, thus broadening the scope of remote group participation in glycosylation.
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Affiliation(s)
| | | | | | - Sherif Ramadan
- Chemistry Department, Faculty of Science, Benha University, Benha, Qaliobiya 13518, Egypt
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13
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Zhang Y, Guo J, Xu X, Gao Q, Liu X, Ding N. A practical and scalable synthesis of KRN7000 using glycosyl iodide as the glycosyl donor. JOURNAL OF CHEMICAL RESEARCH 2020. [DOI: 10.1177/1747519820961018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
KRN7000 is particularly useful because it is a powerful and specific CD1d agonist and has prompted intense interest in the context of immunology in the past 25 years. Its limited commercial availability and high price has led to the publication of many different syntheses. However, almost all of them focused on the methodology development rather than a scalable synthesis. Herein, we have described a practical and scalable procedure for the synthesis of KRN7000 basing on the glycosyl iodide method. This procedure involves total of eight steps to obtain the highly pure product KNR7000 on gram scale from the commercially available starting materials (d-galactose and the phytosphingosine) with only three column chromatographic purifications.
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Affiliation(s)
- Yang Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai, P.R. China
| | - Jia Guo
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai, P.R. China
| | - Xiaoyan Xu
- China State Institute of Pharmaceutical Industry, Shanghai, P.R. China
| | - Qi Gao
- China State Institute of Pharmaceutical Industry, Shanghai, P.R. China
| | - Xianglai Liu
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai, P.R. China
| | - Ning Ding
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai, P.R. China
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14
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Jeanneret RA, Johnson SE, Galan MC. Conformationally Constrained Glycosyl Donors as Tools to Control Glycosylation Outcomes. J Org Chem 2020; 85:15801-15826. [DOI: 10.1021/acs.joc.0c02045] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Robin A. Jeanneret
- School of Chemistry, University of Bristol, Cantock’s
Close, Bristol BS8 1TS, United Kingdom
| | - Simon E. Johnson
- School of Chemistry, University of Bristol, Cantock’s
Close, Bristol BS8 1TS, United Kingdom
| | - M. Carmen Galan
- School of Chemistry, University of Bristol, Cantock’s
Close, Bristol BS8 1TS, United Kingdom
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15
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Hettikankanamalage AA, Lassfolk R, Ekholm FS, Leino R, Crich D. Mechanisms of Stereodirecting Participation and Ester Migration from Near and Far in Glycosylation and Related Reactions. Chem Rev 2020; 120:7104-7151. [PMID: 32627532 PMCID: PMC7429366 DOI: 10.1021/acs.chemrev.0c00243] [Citation(s) in RCA: 108] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review is the counterpart of a 2018 Chemical Reviews article (Adero, P. O.; Amarasekara, H.; Wen, P.; Bohé, L.; Crich, D. Chem. Rev. 2018, 118, 8242-8284) that examined the mechanisms of chemical glycosylation in the absence of stereodirecting participation. Attention is now turned to a critical review of the evidence in support of stereodirecting participation in glycosylation reactions by esters from either the vicinal or more remote positions. As participation by esters is often accompanied by ester migration, the mechanism(s) of migration are also reviewed. Esters are central to the entire review, which accordingly opens with an overview of their structure and their influence on the conformations of six-membered rings. Next the structure and relative energetics of dioxacarbeniun ions are covered with emphasis on the influence of ring size. The existing kinetic evidence for participation is then presented followed by an overview of the various intermediates either isolated or characterized spectroscopically. The evidence supporting participation from remote or distal positions is critically examined, and alternative hypotheses for the stereodirecting effect of such esters are presented. The mechanisms of ester migration are first examined from the perspective of glycosylation reactions and then more broadly in the context of partially acylated polyols.
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Affiliation(s)
- Asiri A. Hettikankanamalage
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, 250 West Green Street, Athens, GA 30602, USA
- Department of Chemistry, University of Georgia, 140 Cedar Street, Athens, GA 30602, USA
| | - Robert Lassfolk
- Johan Gadolin Process Chemistry Centre, Laboratory of Molecular Science and Technology, Åbo Akademi University, 20500 Åbo, Finland
| | - Filip S. Ekholm
- Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, 00014 Helsinki, Finland
| | - Reko Leino
- Johan Gadolin Process Chemistry Centre, Laboratory of Molecular Science and Technology, Åbo Akademi University, 20500 Åbo, Finland
| | - David Crich
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, 250 West Green Street, Athens, GA 30602, USA
- Department of Chemistry, University of Georgia, 140 Cedar Street, Athens, GA 30602, USA
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA 30602, USA
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16
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Marianski M, Mucha E, Greis K, Moon S, Pardo A, Kirschbaum C, Thomas DA, Meijer G, von Helden G, Gilmore K, Seeberger PH, Pagel K. Remote Participation during Glycosylation Reactions of Galactose Building Blocks: Direct Evidence from Cryogenic Vibrational Spectroscopy. Angew Chem Int Ed Engl 2020; 59:6166-6171. [PMID: 31944510 PMCID: PMC7187407 DOI: 10.1002/anie.201916245] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Indexed: 12/19/2022]
Abstract
The stereoselective formation of 1,2-cis-glycosidic bonds is challenging. However, 1,2-cis-selectivity can be induced by remote participation of C4 or C6 ester groups. Reactions involving remote participation are believed to proceed via a key ionic intermediate, the glycosyl cation. Although mechanistic pathways were postulated many years ago, the structure of the reaction intermediates remained elusive owing to their short-lived nature. Herein, we unravel the structure of glycosyl cations involved in remote participation reactions via cryogenic vibrational spectroscopy and first principles theory. Acetyl groups at C4 ensure α-selective galactosylations by forming a covalent bond to the anomeric carbon in dioxolenium-type ions. Unexpectedly, also benzyl ether protecting groups can engage in remote participation and promote the stereoselective formation of 1,2-cis-glycosidic bonds.
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Affiliation(s)
- Mateusz Marianski
- Department of Chemistry and BiochemistryHunter College695 Park Ave10065New YorkNYUSA
- The Ph.D. Program in ChemistryThe Graduate Center of the City University of New York365 5th AveNew YorkNY10016USA
| | - Eike Mucha
- Fritz-Haber-Institut der Max-Planck-GesellschaftFaradayweg 4–614195BerlinGermany
| | - Kim Greis
- Fritz-Haber-Institut der Max-Planck-GesellschaftFaradayweg 4–614195BerlinGermany
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Sooyeon Moon
- Max-Planck-Institut für Kolloid und GrenzflächenforschungAm Mühlenberg 114476PotsdamGermany
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Alonso Pardo
- Max-Planck-Institut für Kolloid und GrenzflächenforschungAm Mühlenberg 114476PotsdamGermany
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Carla Kirschbaum
- Fritz-Haber-Institut der Max-Planck-GesellschaftFaradayweg 4–614195BerlinGermany
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Daniel A. Thomas
- Fritz-Haber-Institut der Max-Planck-GesellschaftFaradayweg 4–614195BerlinGermany
| | - Gerard Meijer
- Fritz-Haber-Institut der Max-Planck-GesellschaftFaradayweg 4–614195BerlinGermany
| | - Gert von Helden
- Fritz-Haber-Institut der Max-Planck-GesellschaftFaradayweg 4–614195BerlinGermany
| | - Kerry Gilmore
- Max-Planck-Institut für Kolloid und GrenzflächenforschungAm Mühlenberg 114476PotsdamGermany
| | - Peter H. Seeberger
- Max-Planck-Institut für Kolloid und GrenzflächenforschungAm Mühlenberg 114476PotsdamGermany
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Kevin Pagel
- Fritz-Haber-Institut der Max-Planck-GesellschaftFaradayweg 4–614195BerlinGermany
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
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17
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Marianski M, Mucha E, Greis K, Moon S, Pardo A, Kirschbaum C, Thomas DA, Meijer G, Helden G, Gilmore K, Seeberger PH, Pagel K. Fernpartizipation in Glykosylierungen von Galaktose‐Bausteinen: Direktnachweis durch kryogene Schwingungsspektroskopie. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916245] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Mateusz Marianski
- Department of Chemistry and BiochemistryHunter College 695 Park Ave 10065 New York NY USA
- The Ph.D. Program in ChemistryThe Graduate Center of the City University of New York 365 5th Ave New York NY 10016 USA
| | - Eike Mucha
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Deutschland
| | - Kim Greis
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Deutschland
- Institut für Chemie und BiochemieFreie Universität Berlin Takustraße 3 14195 Berlin Deutschland
| | - Sooyeon Moon
- Max-Planck-Institut für Kolloid und Grenzflächenforschung Am Mühlenberg 1 14476 Potsdam Deutschland
- Institut für Chemie und BiochemieFreie Universität Berlin Takustraße 3 14195 Berlin Deutschland
| | - Alonso Pardo
- Max-Planck-Institut für Kolloid und Grenzflächenforschung Am Mühlenberg 1 14476 Potsdam Deutschland
- Institut für Chemie und BiochemieFreie Universität Berlin Takustraße 3 14195 Berlin Deutschland
| | - Carla Kirschbaum
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Deutschland
- Institut für Chemie und BiochemieFreie Universität Berlin Takustraße 3 14195 Berlin Deutschland
| | - Daniel A. Thomas
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Deutschland
| | - Gerard Meijer
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Deutschland
| | - Gert Helden
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Deutschland
| | - Kerry Gilmore
- Max-Planck-Institut für Kolloid und Grenzflächenforschung Am Mühlenberg 1 14476 Potsdam Deutschland
| | - Peter H. Seeberger
- Max-Planck-Institut für Kolloid und Grenzflächenforschung Am Mühlenberg 1 14476 Potsdam Deutschland
- Institut für Chemie und BiochemieFreie Universität Berlin Takustraße 3 14195 Berlin Deutschland
| | - Kevin Pagel
- Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4–6 14195 Berlin Deutschland
- Institut für Chemie und BiochemieFreie Universität Berlin Takustraße 3 14195 Berlin Deutschland
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18
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Xu K, Man Q, Zhang Y, Guo J, Liu Y, Fu Z, Zhu Y, Li Y, Zheng M, Ding N. Investigation of the remote acyl group participation in glycosylation from conformational perspectives by using trichloroacetimidate as the acetyl surrogate. Org Chem Front 2020. [DOI: 10.1039/d0qo00363h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The remote acyl group participation in glycosylation was studied by using trichloroacetimidate as the acetyl surrogate. The bridging participation intermediates were systematically trapped, and DFT calculations were applied to explain the results.
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19
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Asressu KH, Wang CC. SnCl 4-catalyzed solvent-free acetolysis of 2,7-anhydrosialic acid derivatives. Beilstein J Org Chem 2019; 15:2990-2999. [PMID: 31949543 PMCID: PMC6948141 DOI: 10.3762/bjoc.15.295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 12/13/2019] [Indexed: 12/17/2022] Open
Abstract
Sialic acid-containing glycans are found in different sialic acid forms and a variety of glycosidic linkages in biologically active glycoconjugates. Hence, the preparation of suitably protected sialyl building blocks requires high attention in order to access glycans in a pure form. In line with this, various C-5-substituted 2,7-anhydrosialic acid derivatives bearing both electron-donating and -withdrawing protecting groups were synthesized and subjected to different Lewis acid-catalyzed solvent-free ring-opening reactions at room temperature in the presence of acetic anhydride. Among the various Lewis acids tested, the desired acetolysis products were obtained in moderate yields under tin(IV) chloride catalysis. Our methodology could be extended to regioselective protecting group installations and manipulations towards a number of thiosialoside and halide donors.
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Affiliation(s)
- Kesatebrhan Haile Asressu
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
- Taiwan International Graduate Program (TIGP), Sustainable Chemical Science and Technology (SCST), Academia Sinica, Taipei 115, Taiwan
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 300, Taiwan
| | - Cheng-Chung Wang
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
- Taiwan International Graduate Program (TIGP), Sustainable Chemical Science and Technology (SCST), Academia Sinica, Taipei 115, Taiwan
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20
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Chang C, Wu C, Lin M, Liao P, Chang C, Chuang H, Lin S, Lam S, Verma VP, Hsu C, Wang C. Establishment of Guidelines for the Control of Glycosylation Reactions and Intermediates by Quantitative Assessment of Reactivity. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906297] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Chun‐Wei Chang
- Institute of ChemistryAcademia Sinica Taipei 115 Taiwan
- Chemical Biology and Molecular Biophysics, Taiwan International Graduate ProgramAcademia Sinica Taipei 115 Taiwan
- Department of ChemistryNational Taiwan University Taipei 106 Taiwan
| | - Chia‐Hui Wu
- Institute of ChemistryAcademia Sinica Taipei 115 Taiwan
- Chemical Biology and Molecular Biophysics, Taiwan International Graduate ProgramAcademia Sinica Taipei 115 Taiwan
- Department of ChemistryNational Taiwan University Taipei 106 Taiwan
| | - Mei‐Huei Lin
- Institute of ChemistryAcademia Sinica Taipei 115 Taiwan
| | | | | | - Hsiao‐Han Chuang
- Institute of ChemistryAcademia Sinica Taipei 115 Taiwan
- Department of ChemistryNational Taiwan University Taipei 106 Taiwan
- Nanoscience and Technology Program, Taiwan International Graduate ProgramAcademia Sinica and National Taiwan University Taipei 115 Taiwan
| | - Su‐Ching Lin
- Institute of ChemistryAcademia Sinica Taipei 115 Taiwan
| | - Sarah Lam
- Institute of ChemistryAcademia Sinica Taipei 115 Taiwan
| | | | - Chao‐Ping Hsu
- Institute of ChemistryAcademia Sinica Taipei 115 Taiwan
| | - Cheng‐Chung Wang
- Institute of ChemistryAcademia Sinica Taipei 115 Taiwan
- Chemical Biology and Molecular Biophysics, Taiwan International Graduate ProgramAcademia Sinica Taipei 115 Taiwan
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21
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Chang C, Wu C, Lin M, Liao P, Chang C, Chuang H, Lin S, Lam S, Verma VP, Hsu C, Wang C. Establishment of Guidelines for the Control of Glycosylation Reactions and Intermediates by Quantitative Assessment of Reactivity. Angew Chem Int Ed Engl 2019; 58:16775-16779. [DOI: 10.1002/anie.201906297] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 08/23/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Chun‐Wei Chang
- Institute of ChemistryAcademia Sinica Taipei 115 Taiwan
- Chemical Biology and Molecular Biophysics, Taiwan International Graduate ProgramAcademia Sinica Taipei 115 Taiwan
- Department of ChemistryNational Taiwan University Taipei 106 Taiwan
| | - Chia‐Hui Wu
- Institute of ChemistryAcademia Sinica Taipei 115 Taiwan
- Chemical Biology and Molecular Biophysics, Taiwan International Graduate ProgramAcademia Sinica Taipei 115 Taiwan
- Department of ChemistryNational Taiwan University Taipei 106 Taiwan
| | - Mei‐Huei Lin
- Institute of ChemistryAcademia Sinica Taipei 115 Taiwan
| | | | | | - Hsiao‐Han Chuang
- Institute of ChemistryAcademia Sinica Taipei 115 Taiwan
- Department of ChemistryNational Taiwan University Taipei 106 Taiwan
- Nanoscience and Technology Program, Taiwan International Graduate ProgramAcademia Sinica and National Taiwan University Taipei 115 Taiwan
| | - Su‐Ching Lin
- Institute of ChemistryAcademia Sinica Taipei 115 Taiwan
| | - Sarah Lam
- Institute of ChemistryAcademia Sinica Taipei 115 Taiwan
| | | | - Chao‐Ping Hsu
- Institute of ChemistryAcademia Sinica Taipei 115 Taiwan
| | - Cheng‐Chung Wang
- Institute of ChemistryAcademia Sinica Taipei 115 Taiwan
- Chemical Biology and Molecular Biophysics, Taiwan International Graduate ProgramAcademia Sinica Taipei 115 Taiwan
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22
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Hayashi T, Kehr G, Bergander K, Gilmour R. Stereospecific α‐Sialylation by Site‐Selective Fluorination. Angew Chem Int Ed Engl 2019; 58:3814-3818. [DOI: 10.1002/anie.201812963] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 12/21/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Taiki Hayashi
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Gerald Kehr
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Klaus Bergander
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Ryan Gilmour
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
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23
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Xu H, Chen L, Zhang Q, Feng Y, Zu Y, Chai Y. Stereoselective β-Mannosylation with 2,6-Lactone-bridged Thiomannosyl Donor by Remote Acyl Group Participation. Chem Asian J 2019; 14:1424-1428. [PMID: 30831004 DOI: 10.1002/asia.201801740] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Indexed: 11/10/2022]
Abstract
Stereoselective β-mannosylation has been recognized as one of the greatest challenges of carbohydrate chemistry. Herein, we described a practical method for stereoselective construction of β-mannosides by using a 2,6-lactone-bridged thiomannosyl donor through the remote acyl-group participation as well as the steric effect of O-4 substituent. The two effects are enabled through the conversion of a regular mannopyranosyl 4 C1 conformation into a 2,6-lactone bridged conformation. The lactone donor could be readily prepared in three steps on a gram scale and the β-mannosylation proceeded smoothly with high stereoselectivity for primary, secondary and tertiary alcohol acceptors. In addition, this strategy was successfully applied to the synthesis of a naturally occurring trisaccharide.
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Affiliation(s)
- Huanfang Xu
- Key Laboratory of Applied Surface and Colloid Chemistry, Shaanxi Normal University, 620 West Chang'an Avenue, Xi'an, Shaanxi, 710119, China
| | - Long Chen
- Key Laboratory of Applied Surface and Colloid Chemistry, Shaanxi Normal University, 620 West Chang'an Avenue, Xi'an, Shaanxi, 710119, China
| | - Qi Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Shaanxi Normal University, 620 West Chang'an Avenue, Xi'an, Shaanxi, 710119, China
| | - Yingle Feng
- Key Laboratory of Applied Surface and Colloid Chemistry, Shaanxi Normal University, 620 West Chang'an Avenue, Xi'an, Shaanxi, 710119, China
| | - Yujia Zu
- Key Laboratory of Applied Surface and Colloid Chemistry, Shaanxi Normal University, 620 West Chang'an Avenue, Xi'an, Shaanxi, 710119, China
| | - Yonghai Chai
- Key Laboratory of Applied Surface and Colloid Chemistry, Shaanxi Normal University, 620 West Chang'an Avenue, Xi'an, Shaanxi, 710119, China
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24
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Hayashi T, Kehr G, Bergander K, Gilmour R. Stereospecific α‐Sialylation by Site‐Selective Fluorination. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812963] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Taiki Hayashi
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Gerald Kehr
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Klaus Bergander
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Ryan Gilmour
- Organisch Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
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25
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Zhang Y, Zhou S, Wang X, Zhang H, Guo Z, Gao J. A new method for α-specific glucosylation and its application to the one-pot synthesis of a branched α-glucan. Org Chem Front 2019. [DOI: 10.1039/c8qo01177j] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We have developed a new and highly efficient α-specific glucosylation method based on the synergistic α-directing effects of a TolSCl/AgOTf promoter system and the steric β-shielding or the remote participation of protecting groups at the donor 6-O-position.
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Affiliation(s)
- Yanxin Zhang
- National Glycoengineering Research Center
- Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology
- Shandong University
- Qingdao
- China
| | - Shihao Zhou
- National Glycoengineering Research Center
- Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology
- Shandong University
- Qingdao
- China
| | - Xiaohan Wang
- National Glycoengineering Research Center
- Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology
- Shandong University
- Qingdao
- China
| | - Han Zhang
- National Glycoengineering Research Center
- Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology
- Shandong University
- Qingdao
- China
| | - Zhongwu Guo
- National Glycoengineering Research Center
- Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology
- Shandong University
- Qingdao
- China
| | - Jian Gao
- National Glycoengineering Research Center
- Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology
- Shandong University
- Qingdao
- China
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26
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Panova MV, Orlova AV, Kononov LO. Stabilization of sialyl cation in axial conformation assisted by remote acyl groups. Russ Chem Bull 2018. [DOI: 10.1007/s11172-018-2260-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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27
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Liu X, Ren S, Gao Q, Hu C, Li Y, Ding N. Glycosylation of a Ketone with an O-Glycosyl Trichloroacetimidate Provides an Enol Glycoside. Org Lett 2018; 20:5186-5189. [DOI: 10.1021/acs.orglett.8b02126] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Xianglai Liu
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Sumei Ren
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Qi Gao
- China State Institute of Pharmaceutical Industry, Shanghai 201203, China
| | - Chun Hu
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yingxia Li
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Ning Ding
- School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
- Zhangjiang Technology Institute, Fudan University, 825 Zhangheng Road, Shanghai 201203, China
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28
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Dharuman S, Amarasekara H, Crich D. Interplay of Protecting Groups and Side Chain Conformation in Glycopyranosides. Modulation of the Influence of Remote Substituents on Glycosylation? J Org Chem 2018; 83:10334-10351. [PMID: 30063354 PMCID: PMC6131524 DOI: 10.1021/acs.joc.8b01459] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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The synthesis and
conformational analysis of a series of phenyl
2,3,6-tri-O-benzyl-β-d-thio galacto-
and glucopyranosides and their 6S-deuterio isotopomers,
with systematic variation of the protecting group at the 4-position,
are described. For the galactopyranosides, replacement of a 4-O-benzyl ether by a 4-O-alkanoyl or aroyl
ester results in a small but measurable shift in side chain population
away from the trans,gauche conformation
and in favor of the gauche,trans conformer. In the glucopyranoside series on the other hand, replacement
of a 4-O-benzyl ether by a 4-O-alkanoyl
or aroyl ester results in a small but measurable increase in the population
of the trans,gauche conformer at
the expense of the gauche,gauche conformer. The possible modulating effect of these conformational
changes on the well-known changes in the anomeric reactivity of glycosyl
donors as a function of protecting group is discussed, raising the
possibility that larger changes may be observed at the transition
state for glycosylation. A comparable study with a series of ethyl
2,3,4-tri-O-benzyl-β-d-thioglucopyranosides
reveals that no significant influence in side chain population is
observed on changing the O6 protecting group.
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Affiliation(s)
- Suresh Dharuman
- Department of Chemistry , Wayne State University , 5101 Cass Avenue , Detroit , Michigan 48202 , United States
| | - Harsha Amarasekara
- Department of Chemistry , Wayne State University , 5101 Cass Avenue , Detroit , Michigan 48202 , United States
| | - David Crich
- Department of Chemistry , Wayne State University , 5101 Cass Avenue , Detroit , Michigan 48202 , United States
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29
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Komarova BS, Dorokhova VS, Tsvetkov YE, Nifantiev NE. Synthesis of a biotinylated penta-α-(1→6)-d-glucoside based on the rational design of an α-stereoselective glucosyl donor. Org Chem Front 2018. [DOI: 10.1039/c7qo01007a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Rational design of a protecting group pattern in a glucosyl donor allows for the α-selective synthesis of biotinylated pentasaccharides corresponding to the fragment of the α-(1→6)-glucans of Helicobacter pylori.
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Affiliation(s)
- Bozhena S. Komarova
- Laboratory of Glycoconjugate Chemistry
- N.D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 119991 Moscow
- Russia
| | - Vera S. Dorokhova
- Laboratory of Glycoconjugate Chemistry
- N.D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 119991 Moscow
- Russia
| | - Yury E. Tsvetkov
- Laboratory of Glycoconjugate Chemistry
- N.D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 119991 Moscow
- Russia
| | - Nikolay E. Nifantiev
- Laboratory of Glycoconjugate Chemistry
- N.D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 119991 Moscow
- Russia
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30
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Affiliation(s)
| | - Jiatong Guo
- Department of Chemistry, University of Florida, Gainesville, Florida, USA
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