1
|
Cai J, Hu J, Qin C, Li L, Shen D, Tian G, Zou X, Seeberger PH, Yin J. Chemical Synthesis Elucidates the Key Antigenic Epitope of the Autism‐Related Bacterium
Clostridium bolteae
Capsular Octadecasaccharide. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Juntao Cai
- Key Laboratory of Carbohydrate Chemistry and Biotechnology Ministry of Education School of Biotechnology Jiangnan University Lihu Avenue 1800 Wuxi Jiangsu Province 214122 P. R. China
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
| | - Jing Hu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology Ministry of Education School of Biotechnology Jiangnan University Lihu Avenue 1800 Wuxi Jiangsu Province 214122 P. R. China
- Wuxi School of Medicine Jiangnan University Lihu Avenue 1800 Wuxi Jiangsu Province 214122 P. R. China
| | - Chunjun Qin
- Key Laboratory of Carbohydrate Chemistry and Biotechnology Ministry of Education School of Biotechnology Jiangnan University Lihu Avenue 1800 Wuxi Jiangsu Province 214122 P. R. China
| | - Lingxin Li
- Key Laboratory of Carbohydrate Chemistry and Biotechnology Ministry of Education School of Biotechnology Jiangnan University Lihu Avenue 1800 Wuxi Jiangsu Province 214122 P. R. China
| | - Dacheng Shen
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
| | - Guangzong Tian
- Key Laboratory of Carbohydrate Chemistry and Biotechnology Ministry of Education School of Biotechnology Jiangnan University Lihu Avenue 1800 Wuxi Jiangsu Province 214122 P. R. China
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
| | - Xiaopeng Zou
- Key Laboratory of Carbohydrate Chemistry and Biotechnology Ministry of Education School of Biotechnology Jiangnan University Lihu Avenue 1800 Wuxi Jiangsu Province 214122 P. R. China
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
| | - Peter H. Seeberger
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
| | - Jian Yin
- Key Laboratory of Carbohydrate Chemistry and Biotechnology Ministry of Education School of Biotechnology Jiangnan University Lihu Avenue 1800 Wuxi Jiangsu Province 214122 P. R. China
| |
Collapse
|
2
|
Cai J, Hu J, Qin C, Li L, Shen D, Tian G, Zou X, Seeberger PH, Yin J. Chemical Synthesis Elucidates the Key Antigenic Epitope of the Autism-Related Bacterium Clostridium bolteae Capsular Octadecasaccharide. Angew Chem Int Ed Engl 2020; 59:20529-20537. [PMID: 32734715 DOI: 10.1002/anie.202007209] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/13/2020] [Indexed: 12/20/2022]
Abstract
The gut pathogen Clostridium bolteae has been associated with the onset of autism spectrum disorder (ASD). To create vaccines against C. bolteae, it is important to identify exact protective epitopes of the immunologically active capsular polysaccharide (CPS). Here, a series of C. bolteae CPS glycans, up to an octadecasaccharide, was prepared. Key to achieving the total syntheses is a [2+2] coupling strategy based on a β-d-Rhap-(1→3)-α-d-Manp repeating unit that in turn was accessed by a stereoselective β-d-rhamnosylation. The 4,6-O-benzylidene-induced conformational locking is a powerful strategy for forming a β-d-mannose-type glycoside. An indirect strategy based on C2 epimerization of β-d-quinovoside was efficiently achieved by Swern oxidation and borohydride reduction. Sequential glycosylation, and regioselective and global deprotection produced the disaccharide and tetrasaccharide, up to the octadecasaccharide. Glycan microarray analysis of sera from rabbits immunized with inactivated C. bolteae bacteria revealed a humoral immune response to the di- and tetrasaccharide, but none of the longer sequences. The tetrasaccharide may be a key motif for designing glycoconjugate vaccines against C. bolteae.
Collapse
Affiliation(s)
- Juntao Cai
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Lihu Avenue 1800, Wuxi, Jiangsu Province, 214122, P. R. China.,Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany
| | - Jing Hu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Lihu Avenue 1800, Wuxi, Jiangsu Province, 214122, P. R. China.,Wuxi School of Medicine, Jiangnan University, Lihu Avenue 1800, Wuxi, Jiangsu Province, 214122, P. R. China
| | - Chunjun Qin
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Lihu Avenue 1800, Wuxi, Jiangsu Province, 214122, P. R. China
| | - Lingxin Li
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Lihu Avenue 1800, Wuxi, Jiangsu Province, 214122, P. R. China
| | - Dacheng Shen
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany
| | - Guangzong Tian
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Lihu Avenue 1800, Wuxi, Jiangsu Province, 214122, P. R. China.,Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany
| | - Xiaopeng Zou
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Lihu Avenue 1800, Wuxi, Jiangsu Province, 214122, P. R. China.,Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany
| | - Peter H Seeberger
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany
| | - Jian Yin
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Lihu Avenue 1800, Wuxi, Jiangsu Province, 214122, P. R. China
| |
Collapse
|
3
|
Qu H, Li B, Yang J, Liang H, Li M, Ding K. Design, Synthesis and Bioactivity of Core 1 O-glycan and its Derivative on Human Gut Microbiota. LETT DRUG DES DISCOV 2019. [DOI: 10.2174/1570180816666181218143207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Disaccharide core 1 (Galβ1-3GalNAc) is a common O-glycan structure in
nature. Biochemical studies have confirmed that the formation of the core 1 structure is an important
initial step in O-glycan biosynthesis and it is of great importance for human body.
Objective:
Our study will provide meaningful and useful sights for O-glycan synthesis and their bioassay.
And all the synthetic glycosides would be used as intermediate building blocks in the scheme
developed for oligosaccharide construction.
Methods:
In this article, we firstly used chemical procedures to prepare core 1 and its derivative,
and a novel disaccharide was efficiently synthesized. The structures of the synthesized compounds
were elucidated and confirmed by 1H NMR, 13C NMR and MS. Then we employed three human gut
symbionts belonging to Bacteroidetes, a predominantphyla in the distal gut, as models to study the
bioactivity of core 1 and its derivative on human gut microbiota.
Results:
According to our results, both core 1 and derivative could support the growth of B. fragilis,
especially the core 1 derivative, while failed to support the growth of B. thetaiotaomicron and B.
ovatus.
Conclusion:
This suggested that the B. fragilis might have the specificity glycohydrolase to cut the
glycosidic bond for acquiring monosaccharide.
Collapse
Affiliation(s)
- Huanhuan Qu
- Glycochemistry & Glycobiology Lab, Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Pudong, Shanghai 201203, China
| | - Baixue Li
- Department of Basic Mediclal Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Jingyi Yang
- Department of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Huaiwen Liang
- Department of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Meixia Li
- Glycochemistry & Glycobiology Lab, Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Pudong, Shanghai 201203, China
| | - Kan Ding
- Glycochemistry & Glycobiology Lab, Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Pudong, Shanghai 201203, China
| |
Collapse
|
4
|
Qu H, Sun W, Zhang Y, Sollogoub M, Zhang Y. Synthesis and NMR elucidation of four novel 2-(trimethylsilyl)ethyl glycosides. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-013-1060-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
5
|
Guchhait G, Misra AK. Convergent synthesis of the tetrasaccharide repeating unit corresponding to the O-antigen of the verotoxin-producing Escherichia coli O176. Glycoconj J 2011; 28:519-24. [PMID: 21928148 DOI: 10.1007/s10719-011-9351-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Revised: 09/02/2011] [Accepted: 09/05/2011] [Indexed: 11/29/2022]
Abstract
A convergent synthesis of the tetrasaccharide repeating unit of the O-antigen of the verotoxin producing E. coli O176 has been achieved in excellent yield adopting a [2+2] block glycosylation strategy. The β-D-mannosidic moiety of the tetrasaccharide was prepared from β-D-glucoside and α-D-galactosamine moiety was derived from D-galactal. The tetrasaccharide was synthesized as its 2-trimethylsilylethyl glycoside in excellent yield. All intermediate steps are high yielding.
Collapse
Affiliation(s)
- Goutam Guchhait
- Molecular Medicine Division, Bose Institute, P-1/12, C.I.T. Scheme VII M, Kolkata 700054, India
| | | |
Collapse
|
6
|
Convergent synthesis of a common pentasaccharide corresponding to the O-antigen of Escherichia coli O168 and Shigella dysenteriae type 4. Glycoconj J 2010; 28:11-9. [PMID: 21181263 DOI: 10.1007/s10719-010-9317-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2010] [Revised: 11/29/2010] [Accepted: 12/02/2010] [Indexed: 10/18/2022]
|
7
|
van den Bos LJ, Codée JDC, Litjens REJN, Dinkelaar J, Overkleeft HS, van der Marel GA. Uronic Acids in Oligosaccharide Synthesis. European J Org Chem 2007. [DOI: 10.1002/ejoc.200700101] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Leendert J. van den Bos
- Leiden Institute of Chemistry, Leiden University, P. O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Jeroen D. C. Codée
- Leiden Institute of Chemistry, Leiden University, P. O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Remy E. J. N. Litjens
- Leiden Institute of Chemistry, Leiden University, P. O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Jasper Dinkelaar
- Leiden Institute of Chemistry, Leiden University, P. O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Herman S. Overkleeft
- Leiden Institute of Chemistry, Leiden University, P. O. Box 9502, 2300 RA Leiden, The Netherlands
| | | |
Collapse
|
8
|
Dasgupta‡ S, Rajput‡ VK, Roy B, Mukhopadhyay B. Lanthanum Trifluoromethane-sulfonate‐Catalyzed Facile Synthesis of Per‐O‐acetylated Sugars and Their One‐Pot Conversion to S‐Aryl and O‐Alkyl/Aryl Glycosides. J Carbohydr Chem 2007. [DOI: 10.1080/07328300701298170] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Somnath Dasgupta‡
- a Medicinal and Process Chemistry Division , Central Drug Research Institute, Chattar Manzil Palace , Lucknow, 226001, UP, India
| | - Vishal Kumar Rajput‡
- a Medicinal and Process Chemistry Division , Central Drug Research Institute, Chattar Manzil Palace , Lucknow, 226001, UP, India
| | - Bimalendu Roy
- a Medicinal and Process Chemistry Division , Central Drug Research Institute, Chattar Manzil Palace , Lucknow, 226001, UP, India
| | - Balaram Mukhopadhyay
- a Medicinal and Process Chemistry Division , Central Drug Research Institute, Chattar Manzil Palace , Lucknow, 226001, UP, India
| |
Collapse
|
9
|
Roy S, Roy N. Synthesis of a Blocked Tetrasaccharide Related to the Repeating Unit of the Antigen from Shigella dysenteriae Type 9 in the Form of Its Methyl (R)‐Pyruvate Ester and 2‐(Trimethylsilyl)Ethyl Glycoside. J Carbohydr Chem 2007. [DOI: 10.1081/car-120026456] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Samarpita Roy
- a Department of Biological Chemistry , Indian Association for the Cultivation of Science , Jadavpur , Kolkata , 700 032 , India
| | - Nirmolendu Roy
- a Department of Biological Chemistry , Indian Association for the Cultivation of Science , Jadavpur , Kolkata , 700 032 , India
| |
Collapse
|
10
|
Agnihotri G, Misra AK. Mild and efficient method for the cleavage of benzylidene acetals using HClO4–SiO2 and direct conversion of acetals to acetates. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.03.133] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
11
|
Procopio A, Dalpozzo R, De Nino A, Maiuolo L, Nardi M, Romeo G. Mild and efficient method for the cleavage of benzylidene acetals by using erbium (iii) triflate. Org Biomol Chem 2005; 3:4129-33. [PMID: 16267593 DOI: 10.1039/b511314h] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Er(OTf)3 is proposed as new efficient Lewis acid catalyst in a mild deprotection protocol of benzylidene derivatives. In a modified procedure, where acetic anhydride is used as the reaction solvent, the simultaneous cleavage of the benzylidene acetal and the peracetylation of the substrates is obtained in quantitative yields and very short reaction times.
Collapse
Affiliation(s)
- Antonio Procopio
- Dipartimento di Scienze Farmaco-Biologiche, Università della Magna Graecia, Complesso Ninì Barbieri, 88021 Roccelletta di Borgia (Cz), Italy.
| | | | | | | | | | | |
Collapse
|
12
|
Roy S, Sarkar SK, Roy N. Synthesis of a Tetrasaccharide Related to the Repeating Unit of the Antigen fromShigella dysenteriaeType 9 in the Form of Its 2‐(Trimethylsilyl)ethyl Glycoside. SYNTHETIC COMMUN 2004. [DOI: 10.1081/scc-120028645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
13
|
Hernández-Torres JM, Achkar J, Wei A. Temperature-controlled regioselectivity in the reductive cleavage of p-methoxybenzylidene acetals. J Org Chem 2004; 69:7206-11. [PMID: 15471470 PMCID: PMC1851890 DOI: 10.1021/jo048999m] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The regioselective ring opening of pyranosidic 4,6-p-methoxybenzylidene acetals with BH(3)/Bu(2)BOTf in THF can be tuned by adjusting the reaction temperature and reagent concentrations. Reductive cleavage at 0 degrees C resulted in the exclusive formation of 4-O-p-methoxybenzyl (PMB) ethers, whereas reaction at -78 degrees C produced 6-O-PMB ethers in high yields. The latter condition was observed to be compatible with a variety of acid-sensitive functional groups, including allyl and enol ethers. The presence of water does not interfere with reductive ring opening and may contribute toward in situ generation of H(+) as a catalyst for 6-O-PMB ether formation. Reductive cleavage under rigorously aprotic conditions is greatly decelerated, and yields only the 4-O-PMB ether. The temperature-dependent reductive cleavage of the 4,6-acetal can be described in terms of kinetic versus thermodynamic control: Lewis-acid coordination of the more accessible O-6 is favored at higher temperatures, whereas protonation of the more basic but sterically encumbered O-4 predominates at low temperatures.
Collapse
Affiliation(s)
| | - Jihane Achkar
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907-2084
| | - Alexander Wei
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907-2084
| |
Collapse
|