1
|
Pradhan K, Paul A, Rai D, Mishra AK, Balhara P, Kulkarni SS. Total Synthesis of Vibrio Cholerae O43 Tetrasaccharide Repeating Unit. J Org Chem 2024; 89:4019-4030. [PMID: 38403962 DOI: 10.1021/acs.joc.3c02886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Vibrio cholerae is a pathogen responsible for the deadly pandemic - cholera. The glycans present on the surface of various strains of V. cholerae are considered as potential vaccine candidates. The tetrasaccharide repeating unit (RU) of V. cholerae O43 is decorated with less-explored rare deoxy amino sugars like d-quinosamine and d-viosamine, along with a rare amino acid, N-acetyl-l-allothreonine. Herein, we report a detailed account of the total synthesis of V. cholerae O43 tetrasaccharide RU. In our earlier attempt, while a one-pot assembly of trisaccharide was successful, the final coupling with a fully functionalized d-viosamine donor was low yielding. The successful route involved employing the Fmoc-protected d-viosamine building block as a donor and a late-stage amide bond formation of the tetrasaccharide.
Collapse
Affiliation(s)
- Kabita Pradhan
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Ankita Paul
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Diksha Rai
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Amar Kumar Mishra
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Preeti Balhara
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Suvarn S Kulkarni
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| |
Collapse
|
2
|
Paul A, Kulkarni SS. Total Synthesis of the Repeating Units of Proteus penneri 26 and Proteus vulgaris TG155 via a Common Disaccharide. Org Lett 2023; 25:4400-4405. [PMID: 37284758 DOI: 10.1021/acs.orglett.3c01618] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Herein, we report the first total synthesis of the trisaccharide and tetrasaccharide repeating units of P. penneri 26 and P. vulgaris TG155, respectively, having a common disaccharide unit, 3-α-l-QuipNAc-(1 → 3)-α-d-GlcpNAc-(1 →. Striking features of the targets are the presence of rare sugar units, l-quinovosamine and l-rhamnosamine, all joined through α-glycosidic linkages. Major challenges in the formation of 1,2-cis glycosidic linkages in the case of d-glucosamine, l-quinovosamine, and d-galactosamine have been addressed.
Collapse
Affiliation(s)
- Ankita Paul
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Suvarn S Kulkarni
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| |
Collapse
|
3
|
Dhara D, Bouchet M, Mulard LA. Scalable Synthesis of Versatile Rare Deoxyamino Sugar Building Blocks from d-Glucosamine. J Org Chem 2023. [PMID: 37141399 DOI: 10.1021/acs.joc.2c03016] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
We report the syntheses of 1,3,4-tri-O-acetyl-2-amino-2,6-dideoxy-β-d-glucopyranose and allyl 2-amino-2,6-dideoxy-β-d-glucopyranoside from d-glucosamine hydrochloride. The potential of these two versatile scaffolds as key intermediates to a diversity of orthogonally protected rare deoxyamino hexopyranosides is exemplified in the context of fucosamine, quinovosamine, and bacillosamine. The critical C-6 deoxygenation step to 2,6-dideoxy aminosugars is performed at an early stage on a precursor featuring an imine moiety or a trifluoroacetamide moiety in place of the 2-amino group, respectively. Robustness and scalability are demonstrated for a combination of protecting groups and incremental chemical modifications that sheds light on the promise of the yet unreported allyl 2,6-dideoxy-2-N-trifluoroacetyl-β-d-glucopyranoside when addressing the feasibility of synthetic zwitterionic oligosaccharides. In particular, allyl 3-O-acetyl-4-azido-2,4,6-trideoxy-2-trifluoroacetamido-β-d-galactopyranoside, an advanced 2-acetamido-4-amino-2,4,6-trideoxy-d-galactopyranose building block, was achieved on the 30 g scale from 1,3,4,6-tetra-O-acetyl-β-d-glucosamine hydrochloride in 50% yield and nine steps, albeit only two chromatography purifications.
Collapse
Affiliation(s)
- Debashis Dhara
- , Institut Pasteur, Université Paris Cité, UMR CNRS3523, Chemistry of Biomolecules Laboratory, 8 rue du Dr Roux, 75015 Paris, France
| | - Marion Bouchet
- , Institut Pasteur, Université Paris Cité, UMR CNRS3523, Chemistry of Biomolecules Laboratory, 8 rue du Dr Roux, 75015 Paris, France
| | - Laurence A Mulard
- , Institut Pasteur, Université Paris Cité, UMR CNRS3523, Chemistry of Biomolecules Laboratory, 8 rue du Dr Roux, 75015 Paris, France
| |
Collapse
|
4
|
Rai D, Kulkarni SS. Total Synthesis of Trisaccharide Repeating Unit of Staphylococcus aureus Type 8 (CP8) Capsular Polysaccharide. Org Lett 2023; 25:1509-1513. [PMID: 36852946 DOI: 10.1021/acs.orglett.3c00290] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Herein, we report a highly efficient total synthesis of Staphylococcus aureus type 8 trisaccharide repeating unit in a lesser number of steps and high stereoselectivity. The complex trisaccharide contains rare amino sugars, viz., d-fucosamine, l-fucosamine, and 2-acetamido d-mannuronic acid. The installation of consecutive sterically hindered 1,2-cis glycosidic linkages, especially β-mannosylation, is the key challenge in this synthesis. The total synthesis of target molecule was completed via a longest linear sequence of 18 steps in 7.1% overall yield.
Collapse
Affiliation(s)
- Diksha Rai
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Suvarn S Kulkarni
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| |
Collapse
|
5
|
Wang N, Kong Y, Li J, Hu Y, Li X, Jiang S, Dong C. Synthesis and application of phosphorylated saccharides in researching carbohydrate-based drugs. Bioorg Med Chem 2022; 68:116806. [PMID: 35696797 DOI: 10.1016/j.bmc.2022.116806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 05/04/2022] [Accepted: 05/04/2022] [Indexed: 11/24/2022]
Abstract
Phosphorylated saccharides are valuable targets in glycochemistry and glycobiology, which play an important role in various physiological and pathological processes. The current research on phosphorylated saccharides primarily focuses on small molecule inhibitors, glycoconjugate vaccines and novel anti-tumour targeted drug carrier materials. It can maximise the pharmacological effects and reduce the toxicity risk caused by nonspecific off-target reactions of drug molecules. However, the number and types of natural phosphorylated saccharides are limited, and the complexity and heterogeneity of their structures after extraction and separation seriously restrict their applications in pharmaceutical development. The increasing demands for the research on these molecules have extensively promoted the development of carbohydrate synthesis. Numerous innovative synthetic methodologies have been reported regarding the continuous expansion of the potential building blocks, catalysts, and phosphorylation reagents. This review summarizes the latest methods for enzymatic and chemical synthesis of phosphorylated saccharides, emphasizing their breakthroughs in yield, reactivity, regioselectivity, and application scope. Additionally, the anti-bacterial, anti-tumour, immunoregulatory and other biological activities of some phosphorylated saccharides and their applications were also reviewed. Their structure-activity relationship and mechanism of action were discussed and the key phosphorylation characteristics, sites and extents responsible for observed biological activities were emphasised. This paper will provide a reference for the application of phosphorylated saccharide in the research of carbohydrate-based drugs in the future.
Collapse
Affiliation(s)
- Ning Wang
- Henan University of Chinese Medicine, Zhengzhou 450046, Henan, China; Henan Polysaccharide Research Center, Zhengzhou 450046, Henan, China; Henan Key Laboratory of Chinese Medicine for Polysaccharides and Drugs Research, Zhengzhou 450046, Henan, China
| | - Yuanfang Kong
- Henan University of Chinese Medicine, Zhengzhou 450046, Henan, China; Henan Polysaccharide Research Center, Zhengzhou 450046, Henan, China; Henan Key Laboratory of Chinese Medicine for Polysaccharides and Drugs Research, Zhengzhou 450046, Henan, China
| | - Jieming Li
- Henan University of Chinese Medicine, Zhengzhou 450046, Henan, China; Henan Polysaccharide Research Center, Zhengzhou 450046, Henan, China; Henan Key Laboratory of Chinese Medicine for Polysaccharides and Drugs Research, Zhengzhou 450046, Henan, China
| | - Yulong Hu
- Henan University of Chinese Medicine, Zhengzhou 450046, Henan, China; Henan Polysaccharide Research Center, Zhengzhou 450046, Henan, China; Henan Key Laboratory of Chinese Medicine for Polysaccharides and Drugs Research, Zhengzhou 450046, Henan, China
| | - Xiaofei Li
- Henan University of Chinese Medicine, Zhengzhou 450046, Henan, China; Henan Polysaccharide Research Center, Zhengzhou 450046, Henan, China; Henan Key Laboratory of Chinese Medicine for Polysaccharides and Drugs Research, Zhengzhou 450046, Henan, China
| | - Shiqing Jiang
- Henan University of Chinese Medicine, Zhengzhou 450046, Henan, China; Henan Polysaccharide Research Center, Zhengzhou 450046, Henan, China; Henan Key Laboratory of Chinese Medicine for Polysaccharides and Drugs Research, Zhengzhou 450046, Henan, China
| | - Chunhong Dong
- Henan University of Chinese Medicine, Zhengzhou 450046, Henan, China; Henan Polysaccharide Research Center, Zhengzhou 450046, Henan, China; Henan Key Laboratory of Chinese Medicine for Polysaccharides and Drugs Research, Zhengzhou 450046, Henan, China.
| |
Collapse
|
6
|
Ghosh B, Bhattacharjee N, Podilapu AR, Puri K, Kulkarni SS. Total Synthesis of the Repeating Units of O-Specific Polysaccharide of Pseudomonas chlororaphis subsp. aureofaciens UCM B-306 via One-Pot Glycosylation. Org Lett 2022; 24:3696-3701. [PMID: 35549295 DOI: 10.1021/acs.orglett.2c01318] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein we report the first total syntheses of the trisaccharide-repeating units of Pseudomonas chlororaphis subsp. aureofaciens UCM B-306 via a one-pot assembly of the core trisaccharide structure. The rare-sugar-containing trisaccharide-repeating units are comprised of d-bacillosamine, 2-amino-2-deoxy-d-galacturonic acid or amide, and d-rhamnose units linked through three consecutive α-linkages. The total syntheses of two repeating units were completed starting from d-mannose via a longest-linear sequence of 27 steps in 5.8% and 4.4% overall yields, respectively.
Collapse
Affiliation(s)
- Bhaswati Ghosh
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400076, India
| | - Nabarupa Bhattacharjee
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400076, India
| | - Ananda Rao Podilapu
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400076, India
| | - Krishna Puri
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400076, India
| | - Suvarn S Kulkarni
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400076, India
| |
Collapse
|
7
|
Halder T, Yadav S. Total synthesis of the O-antigen repeating unit of Providencia stuartii O49 serotype through linear and one-pot assemblies. Beilstein J Org Chem 2021; 17:2915-2921. [PMID: 34956410 PMCID: PMC8685571 DOI: 10.3762/bjoc.17.199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 11/29/2021] [Indexed: 11/30/2022] Open
Abstract
Capsular polysaccharides of pathogenic bacteria have been reported to be effective vaccines against diseases caused by them. Providencia stuartii is a class of enterobacteria of the family Providencia that is responsible for several antibiotic resistant infections, particularly urinary tract infections of patients with prolonged catheterization in hospital settings. Towards the goal of development of vaccine candidates against this pathogen, we herein report the total synthesis of a trisaccharide repeating unit of the O-antigen polysaccharide of the P. stuartii O49 serotype containing the →6)-β-ᴅ-Galp-(1→3)-β-ᴅ-GalpNAc(1→4)-α-ᴅ-Galp(1→ linkage. The synthesis of the trisaccharide repeating unit was carried out first by a linear strategy involving the [1 + (1 + 1 = 2)] assembly, followed by a one-pot synthesis involving [1 + 1 + 1] strategy from the corresponding monosaccharides. The one-pot method provided a higher yield of the protected trisaccharide intermediate (73%) compared to the two step synthesis (66%). The protected trisaccharide was then deprotected and N-acetylated to finally afford the desired trisaccharide repeating unit as its α-p-methoxyphenyl glycoside.
Collapse
Affiliation(s)
- Tanmoy Halder
- Department of Chemistry, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India
| | - Somnath Yadav
- Department of Chemistry, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India
| |
Collapse
|
8
|
Ghosh A, Kulkarni SS. Total Synthesis of the Repeating Unit of Streptococcus pneumoniae Zwitterionic Polysaccharide Sp1. J Org Chem 2021; 86:18292-18299. [PMID: 34860529 DOI: 10.1021/acs.joc.1c02409] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Reported herein is the total synthesis of the trisaccharide repeating unit of Streptococcus pneumoniae zwitterionic polysaccharide Sp1 containing a rare sugar, 2-acetamido-4-amino-2,4,6-trideoxy-d-galactose (AAT), and three consecutive 1,2-cis-glycosidic linkages. The total synthesis was completed via highly stereoselective glycosylations and late-stage oxidation as key steps involving a longest linear sequence of 21 steps with 4.4% overall yield.
Collapse
Affiliation(s)
- Antara Ghosh
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Suvarn S Kulkarni
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
| |
Collapse
|
9
|
Puri K, Kulkarni SS. Total Synthesis of the Phosphorylated Zwitterionic Trisaccharide Repeating Unit of Photorhabdus temperata cinerea 3240. Org Lett 2021; 23:7083-7087. [PMID: 34459612 DOI: 10.1021/acs.orglett.1c02487] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Herein, we report the total synthesis of the phosphorylated zwitterionic trisaccharide repeating unit of Photorhabdus temperata subsp. cinerea 3240. The efficient route involves regio- and stereoselective assembly of trisaccharide with rare deoxyamino sugar AAT at the nonreducing end, late stage oxidation, and installation of a phosphate linker on the trisaccharide. The total synthesis was completed via a longest linear sequence of 24 steps in 6.5% overall yield.
Collapse
Affiliation(s)
- Krishna Puri
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Suvarn S Kulkarni
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
| |
Collapse
|
10
|
Biswas S, Ghotekar BK, Kulkarni SS. Total Synthesis of the All-Rare Sugar-Containing Pentasaccharide Repeating Unit of the O-Polysaccharide of Plesiomonas shigelloides Strain 302-73 (Serotype O1). Org Lett 2021; 23:6137-6142. [PMID: 34291950 DOI: 10.1021/acs.orglett.1c02239] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
First total synthesis of the conjugation-ready pentasaccharide repeating unit of Plesiomonas shigelloides strain 302-73 (serotype O1) is reported. The complex target pentasaccharide is composed of all-rare amino sugars such as orthogonally functionalized d-bacillosamine, l-fucosamine, and l-pneumosamine linked through four consecutive α-linkages. The poor nucleophilicity of axial 4-OH of l-fucosamine and stereoselective glycosylations are the key challenges in the total synthesis, which was completed via a longest linear sequence of 27 steps in 3% overall yield.
Collapse
Affiliation(s)
- Sayantan Biswas
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Balasaheb K Ghotekar
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Suvarn S Kulkarni
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
| |
Collapse
|
11
|
Paul A, Kulkarni SS. Synthesis of L-hexoses: an Update. CHEM REC 2021; 21:3224-3237. [PMID: 34075685 DOI: 10.1002/tcr.202100087] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 05/11/2021] [Accepted: 05/11/2021] [Indexed: 01/01/2023]
Abstract
Over the years, carbohydrates have increasingly become an important class of compounds contributing significantly to the target specific drug discovery and vaccine development. Several oligosaccharides contain L-hexoses that are biologically relevant as therapeutic and diagnostic tools. Since, L-hexoses and deoxy L-hexoses are not readily available in large amount and pure form, attention is drawn towards development of cost effective and high yielding synthetic routes for their procurement. In this review we give an update on the recent developments in strategies for synthesis of L-hexoses and deoxy L-hexoses.
Collapse
Affiliation(s)
- Ankita Paul
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Suvarn S Kulkarni
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
| |
Collapse
|
12
|
Ahadi S, Awan SI, Werz DB. Total Synthesis of Tri-, Hexa- and Heptasaccharidic Substructures of the O-Polysaccharide of Providencia rustigianii O34. Chemistry 2020; 26:6264-6270. [PMID: 32092205 PMCID: PMC7318715 DOI: 10.1002/chem.202000496] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 02/20/2020] [Indexed: 12/22/2022]
Abstract
A general and efficient strategy for synthesis of tri-, hexa- and heptasaccharidic substructures of the lipopolysaccharide of Providencia rustigianii O34 is described. For the heptasaccharide seven different building blocks were employed. Special features of the structures are an α-linked galactosamine and the two embedded α-fucose units, which are either branched at positions-3 and -4 or further linked at their 2-position. Convergent strategies focused on [4+3], [3+4], and [4+2+1] couplings. Whereas the [4+3] and [3+4] coupling strategies failed the [4+2+1] strategy was successful. As monosaccharidic building blocks trichloroacetimidates and phosphates were employed. Global deprotection of the fully protected structures was achieved by Birch reaction.
Collapse
Affiliation(s)
- Somayeh Ahadi
- Technische Universität BraunschweigInstitute of Organic ChemistryHagenring 3038106BraunschweigGermany
| | - Shahid I. Awan
- Georg-August-Universität GöttingenInstitute of Organic and Biomolecular ChemistryTammannstraße 237077GöttingenGermany
| | - Daniel B. Werz
- Technische Universität BraunschweigInstitute of Organic ChemistryHagenring 3038106BraunschweigGermany
| |
Collapse
|
13
|
Ghotekar BK, Podilapu AR, Kulkarni SS. Total Synthesis of the Lipid-Anchor-Attached Core Trisaccharides of Lipoteichoic Acids of Streptococcus pneumoniae and Streptococcus oralis Uo5. Org Lett 2020; 22:537-541. [PMID: 31887057 DOI: 10.1021/acs.orglett.9b04264] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Herein we report an efficient total synthesis of lipid-anchor-appended core trisaccharides of lipoteichoic acids of Streptococcus pneumoniae and Streptococcus oralis Uo5. The key features include the expedient synthesis of the rare sugar 2,4,6-trideoxy-2-acetamido-4-amino-d-Galp building block via one-pot sequential SN2 reactions and the α-selective coupling of d-thioglucoside with the diacyl glycerol acceptor to construct a common disaccharide acceptor, which was utilized in the total synthesis of target molecules 1 and 2.
Collapse
Affiliation(s)
- Balasaheb K Ghotekar
- 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
| | - Suvarn S Kulkarni
- Department of Chemistry , Indian Institute of Technology Bombay , Mumbai 400076 , India
| |
Collapse
|
14
|
Behera A, Rai D, Kulkarni SS. Total Syntheses of Conjugation-Ready Trisaccharide Repeating Units of Pseudomonas aeruginosa O11 and Staphylococcus aureus Type 5 Capsular Polysaccharide for Vaccine Development. J Am Chem Soc 2019; 142:456-467. [DOI: 10.1021/jacs.9b11309] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Archanamayee Behera
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Diksha Rai
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Suvarn S. Kulkarni
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| |
Collapse
|
15
|
Lv J, Luo T, Zhang Y, Pei Z, Dong H. Regio/Site-Selective Benzoylation of Carbohydrates by Catalytic Amounts of FeCl 3. ACS OMEGA 2018; 3:17717-17723. [PMID: 31458369 PMCID: PMC6643987 DOI: 10.1021/acsomega.8b02360] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 12/06/2018] [Indexed: 05/10/2023]
Abstract
This work uncovered the regio/site-selective benzoylation of 1,2- and 1,3-diols and glycosides containing a cis-vicinal diol using a catalytic amount of FeCl3 with the assistance of acetylacetone. FeCl3 may initially form [Fe(acac)3] (acac = acetylacetonate) with excess acetylacetone in the presence of diisopropylethylamine (DIPEA) in acetonitrile at room temperature. Then, benzoylation was catalyzed by Fe(acac)3 with added benzoyl chloride in the presence of DIPEA under mild conditions as reported. This reaction produced selectivities and isolated yields similar to or slightly lower than the reaction using Fe(acac)3 as a catalyst in most cases. The result provides not only the green and convenient selective benzoylation method associated with the most inexpensive catalysts but also the possibility that the effects of various metal salts and ligands on the regioselective protection can be extensively investigated in future study to obtain the optimized catalytic system.
Collapse
Affiliation(s)
- Jian Lv
- Key
Laboratory of Material Chemistry for Energy Conversion and Storage,
Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, PR China
| | - Tao Luo
- Key
Laboratory of Material Chemistry for Energy Conversion and Storage,
Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, PR China
| | - Ying Zhang
- Key
Laboratory of Material Chemistry for Energy Conversion and Storage,
Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, PR China
| | - Zhichao Pei
- College
of Chemistry and Pharmacy, Northwest A&F
University, Yangling, 712100 Shaanxi, P. R. China
| | - Hai Dong
- Key
Laboratory of Material Chemistry for Energy Conversion and Storage,
Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, PR China
| |
Collapse
|
16
|
Emmadi M, Kulkarni SS. Synthesis of Rare Deoxy Amino Sugar Building Blocks Enabled the Total Synthesis of a Polysaccharide Repeating Unit Analogue from the LPS of Psychrobacter cryohalolentis K5T. J Org Chem 2018; 83:14323-14337. [DOI: 10.1021/acs.joc.8b02037] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Madhu Emmadi
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Suvarn S. Kulkarni
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
| |
Collapse
|
17
|
Behera A, Rai D, Kushwaha D, Kulkarni SS. Total Synthesis of Trisaccharide Repeating Unit of O-Specific Polysaccharide of Pseudomonas fluorescens BIM B-582. Org Lett 2018; 20:5956-5959. [PMID: 30187759 DOI: 10.1021/acs.orglett.8b02669] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The first total synthesis of the trisaccharide repeating unit of the O-specific polysaccharide of Pseudomonas fluorescens BIM B-582 is reported. This efficient synthesis involves consecutive 1,2- cis glycosylations including β-l-rhamnosylation and α selective coupling of rare 4-deoxy-d- xylo-hexose as the key steps. The synthetic trisaccharide is equipped with an aminopropyl linker at the reducing end to allow for conjugation to proteins and microarrays for further immunological studies.
Collapse
Affiliation(s)
- Archanamayee Behera
- Department of Chemistry , Indian Institute of Technology Bombay , Mumbai 400076 , India
| | - Diksha Rai
- Department of Chemistry , Indian Institute of Technology Bombay , Mumbai 400076 , India
| | - Divya Kushwaha
- Department of Chemistry , Indian Institute of Technology Bombay , Mumbai 400076 , India
| | - Suvarn S Kulkarni
- Department of Chemistry , Indian Institute of Technology Bombay , Mumbai 400076 , India
| |
Collapse
|
18
|
Dubbu S, Chennaiah A, Verma AK, Vankar YD. Stereoselective synthesis of 2-deoxy-β-C-aryl/alkyl glycosides using Prins cyclization: Application in the synthesis of C-disaccharides and differently protected C-aryl glycosides. Carbohydr Res 2018; 468:64-68. [PMID: 30153553 DOI: 10.1016/j.carres.2018.08.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 08/20/2018] [Accepted: 08/20/2018] [Indexed: 02/02/2023]
Abstract
2-Deoxy-β-C-aryl/alkyl glycosides were synthesized from di-O-pivaloyl protected homoallylic alcohol derived from D-mannitol with various aldehydes via the Prins cyclization. The salient features of this methodology are high yields and excellent stereoselectivity. This method has also been successfully applied to the synthesis of differently protected 2-deoxy-β-C-aryl glycosides and C-disaccharides. One of the 2-deoxy-β-C-aryl glycosides was utilized as a glycosyl acceptor in the glycosylation to synthesize an O-linked disaccharides.
Collapse
Affiliation(s)
- Sateesh Dubbu
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Ande Chennaiah
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Ashish Kumar Verma
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Yashwant D Vankar
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India.
| |
Collapse
|
19
|
Behera A, Kulkarni SS. Chemical Synthesis of Rare, Deoxy-Amino Sugars Containing Bacterial Glycoconjugates as Potential Vaccine Candidates. Molecules 2018; 23:molecules23081997. [PMID: 30103434 PMCID: PMC6222762 DOI: 10.3390/molecules23081997] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/04/2018] [Accepted: 08/08/2018] [Indexed: 12/30/2022] Open
Abstract
Bacteria often contain rare deoxy amino sugars which are absent in the host cells. This structural difference can be harnessed for the development of vaccines. Over the last fifteen years, remarkable progress has been made toward the development of novel and efficient protocols for obtaining the rare sugar building blocks and their stereoselective assembly to construct conjugation ready bacterial glycans. In this review, we discuss the total synthesis of a variety of rare sugar containing bacterial glycoconjugates which are potential vaccine candidates.
Collapse
Affiliation(s)
- Archanamayee Behera
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India.
| | - Suvarn S Kulkarni
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India.
| |
Collapse
|
20
|
Podilapu AR, Emmadi M, Kulkarni SS. Expeditious Synthesis of Ieodoglucomides A and B from the Marine-Derived Bacterium Bacillus licheniformis. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800209] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Ananda Rao Podilapu
- Department of Chemistry; Indian Institute of Technology Bombay; Mumbai India
| | - Madhu Emmadi
- Department of Chemistry; Indian Institute of Technology Bombay; Mumbai India
| | - Suvarn S. Kulkarni
- Department of Chemistry; Indian Institute of Technology Bombay; Mumbai India
| |
Collapse
|
21
|
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: 207] [Impact Index Per Article: 34.5] [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.
Collapse
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
| |
Collapse
|
22
|
Qin C, Schumann B, Zou X, Pereira CL, Tian G, Hu J, Seeberger PH, Yin J. Total Synthesis of a Densely Functionalized Plesiomonas shigelloides Serotype 51 Aminoglycoside Trisaccharide Antigen. J Am Chem Soc 2018; 140:3120-3127. [PMID: 29377682 DOI: 10.1021/jacs.8b00148] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Plesiomonas shigelloides, a pathogen responsible for frequent outbreaks of severe travelers' diarrhea, causes grave extraintestinal infections. Sepsis and meningitis due to P. shigelloides are associated with a high mortality rate as antibiotic resistance increases and vaccines are not available. Carbohydrate antigens expressed by pathogens are often structurally unique and are targets for developing vaccines and diagnostics. Here, we report a total synthesis of the highly functionalized trisaccharide repeating unit 2 from P. shigelloides serotype 51 from three monosaccharides. A judicious choice of building blocks and reaction conditions allowed for the four amino groups adorning the sugar rings to be installed with two N-acetyl (Ac) groups, rare acetamidino (Am), and d-3-hydroxybutyryl (Hb) groups. The strategy for the differentiation of amino groups in trisaccharide 2 will serve well for the syntheses of other complex glycans.
Collapse
Affiliation(s)
- Chunjun Qin
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University , Wuxi, Jiangsu Province 214122, P.R. China.,Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces , Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Benjamin Schumann
- 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 , Wuxi, Jiangsu Province 214122, P.R. China.,Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces , Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Claney L Pereira
- 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 , 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 , Wuxi, Jiangsu Province 214122, P.R. China
| | - 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 , Wuxi, Jiangsu Province 214122, P.R. China
| |
Collapse
|