1
|
Guo YF, Yu JC, Dong H. Regioselective Glycosylation of Mannoside and Galactoside Acceptors Containing 2,4-OH Achieved by Altering Protecting Groups at the 1,3,6-Positions. J Org Chem 2024; 89:8706-8720. [PMID: 38825808 DOI: 10.1021/acs.joc.4c00618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
In this study, we systematically investigated the regioselective glycosylation of 2,4-OH mannoside and galactoside acceptors since regioselective protection of their 3- and 6-OHs is readily achieved. By altering the protecting groups at 1-, 3-, and 6-positions of such acceptors, we finally screened p-methoxyphenyl 3-OBn, 6-OTBDPS, α-mannoside, and β-galactoside acceptors whose 2-OHs exhibited excellent selectivity for glycosylation with various glycosyl donors, leading to 1,2-linked products in 70-82% yields. By utilizing such acceptors, a series of 2,4-linked trisaccharide products (53-65% yields over two steps) have been highly efficiently synthesized without the need for complex protection/deprotection operations at the 2- and 4-positions of these acceptors.
Collapse
Affiliation(s)
- Yang-Fan Guo
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, P. R. China
| | - Jian-Cheng Yu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, P. R. China
| | - Hai Dong
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, P. R. China
| |
Collapse
|
2
|
Nakamura Y, Irisawa K, Makino K, Shimada N. Boronic Acid/Palladium Hybrid Catalysis for Regioselective O-Allylation of Carbohydrates. J Org Chem 2024. [PMID: 38194418 DOI: 10.1021/acs.joc.3c02445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Novel imidazole-containing boronic acid and palladium hybrid catalysis for regioselective O-allylation of carbohydrates has been developed. This catalytic process enables the introduction of a useful allyl functional group into the equatorial hydroxy group of cis-1,2-diols of various carbohydrates with low catalyst loading and excellent regioselectivities. This is the first report on hybrid catalysis in combination with a Lewis base-containing boronic acid and a transition metal complex.
Collapse
Affiliation(s)
- Yuki Nakamura
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Kazuma Irisawa
- Laboratory of Organic Chemistry for Molecular Transformations, Department of Chemistry and the Institute of Natural Sciences, Nihon University, Tokyo 156-8550, Japan
| | - Kazuishi Makino
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Naoyuki Shimada
- Laboratory of Organic Chemistry for Molecular Transformations, Department of Chemistry and the Institute of Natural Sciences, Nihon University, Tokyo 156-8550, Japan
| |
Collapse
|
3
|
Gormand P, Pichette A, Legault J, Alsarraf J. Synthesis and Cytotoxicity of Monomethylated Betulinic Acid 3- O-α-l-Rhamnopyranosides. ACS OMEGA 2023; 8:36118-36125. [PMID: 37810724 PMCID: PMC10552092 DOI: 10.1021/acsomega.3c04301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 08/11/2023] [Indexed: 10/10/2023]
Abstract
Three original derivatives of the cytotoxic betulinic acid 3-O-α-l-rhamnopyranoside featuring a monomethylated rhamnoside residue were synthesized. An improved catalytic procedure was involved to functionalize the O-3 position of the monosaccharide in a site-selective fashion. The cytotoxicity of the novel compounds was evaluated in vitro to highlight the moderate impact of carbohydrate monomethylation on the biological activity of betulinic acid 3-O-α-l-rhamnopyranoside.
Collapse
Affiliation(s)
- Paul Gormand
- Centre de recherche sur la
boréalie (CREB), Laboratoire d’analyse et de séparation
des essences végétales (LASEVE), Université du Québec à Chicoutimi, 555 boulevard de l’Université, Chicoutimi G7H 2B1, QC, Canada
| | - André Pichette
- Centre de recherche sur la
boréalie (CREB), Laboratoire d’analyse et de séparation
des essences végétales (LASEVE), Université du Québec à Chicoutimi, 555 boulevard de l’Université, Chicoutimi G7H 2B1, QC, Canada
| | - Jean Legault
- Centre de recherche sur la
boréalie (CREB), Laboratoire d’analyse et de séparation
des essences végétales (LASEVE), Université du Québec à Chicoutimi, 555 boulevard de l’Université, Chicoutimi G7H 2B1, QC, Canada
| | - Jérôme Alsarraf
- Centre de recherche sur la
boréalie (CREB), Laboratoire d’analyse et de séparation
des essences végétales (LASEVE), Université du Québec à Chicoutimi, 555 boulevard de l’Université, Chicoutimi G7H 2B1, QC, Canada
| |
Collapse
|
4
|
Fung KS, Abragam Joseph A, Khononov A, Pieńko T, Belakhov V, Baasov T. Towards catalytic aminoglycoside: Probing the modification of kanamycin B at the 3′- and 4′-positions. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
|
5
|
Luo T, Xu TT, Guo YF, Dong H. SnCl 4 Promoted Efficient Cleavage of Acetal/Ketal Groups with the Assistance of Water in CH 2Cl 2. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238258. [PMID: 36500346 PMCID: PMC9736348 DOI: 10.3390/molecules27238258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 11/29/2022]
Abstract
Acetalization and deacetalation are a pair of routine manipulations to protect and deprotect the 4- and 6-hydroxyl groups of glycosides in the synthesis of glycosyl building blocks. In this study, we found that treatment of SnCl4 with various carbohydrates containing acetal/ketal groups with the assistance of water in CH2Cl2 led to deacetalization/deketalization products in almost quantitative yields. In addition, for substrates containing both acetal/ketal and p-methoxylbenzyl groups, we also found that the p-methoxylbenzyl group was selectively cleaved by the use of a catalytic amount of SnCl4, while the acetal/ketal groups remained. Furthermore, based on this, 4,6-benzylidene glycosides can be conveniently converted to 4,6-OAc or 4-OH, 6-OAc glycosides.
Collapse
|
6
|
Petitpoisson L, Pichette A, Alsarraf J. Towards better syntheses of partially methylated carbohydrates? Org Chem Front 2022. [DOI: 10.1039/d2qo00893a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We give an overview of the reported synthetic strategies towards partially methylated glycosides and discuss how better protocols could stem from catalytic site-selective transformations of carbohydrates and cleaner methylation reagents.
Collapse
Affiliation(s)
- Lucas Petitpoisson
- Centre de recherche sur la boréalie (CREB), Laboratoire d'analyse et de séparation des essences végétales (LASEVE), Université du Québec à Chicoutimi, 555 boulevard de l'Université, Chicoutimi G7H 2B1, Québec, Canada
| | - André Pichette
- Centre de recherche sur la boréalie (CREB), Laboratoire d'analyse et de séparation des essences végétales (LASEVE), Université du Québec à Chicoutimi, 555 boulevard de l'Université, Chicoutimi G7H 2B1, Québec, Canada
| | - Jérôme Alsarraf
- Centre de recherche sur la boréalie (CREB), Laboratoire d'analyse et de séparation des essences végétales (LASEVE), Université du Québec à Chicoutimi, 555 boulevard de l'Université, Chicoutimi G7H 2B1, Québec, Canada
| |
Collapse
|
7
|
Hassan M, Baussière F, Guzelj S, Sundin AP, Håkansson M, Kovačič R, Leffler H, Tomašič T, Anderluh M, Jakopin Ž, Nilsson UJ. Structure-Guided Design of d-Galactal Derivatives with High Affinity and Selectivity for the Galectin-8 N-Terminal Domain. ACS Med Chem Lett 2021; 12:1745-1752. [PMID: 34795863 PMCID: PMC8592027 DOI: 10.1021/acsmedchemlett.1c00371] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 10/27/2021] [Indexed: 12/14/2022] Open
Abstract
Galectin-8 is a carbohydrate-binding protein that plays a crucial role in tumor progression and metastasis, antibacterial autophagy, modulation of the immune system, and bone remodeling. The design, synthesis, and protein affinity evaluation of a set of C-3 substituted benzimidazole and quinoline d-galactal derivatives identified a d-galactal-benzimidazole hybrid as a selective ligand for the galectin-8 N-terminal domain (galectin-8N), with a K d of 48 μM and 15-fold selectivity over galectin-3 and even better selectivity over the other mammalian galectins. X-ray structural analysis of galectin-8N in complex with one benzimidazole- and one quinoline-galactal derivative at 1.52 and 2.1 Å together with molecular dynamics simulations and quantum mechanical calculations of galectin-8N in complex with the benzimidazole derivative revealed orbital overlap between a NH LUMO of Arg45 with electron rich HOMOs of the olefin and O4 of the d-galactal. Such overlap is hypothesized to contribute to the high affinity of the d-galactal-derived ligands for galectin-8N. A (3-(4,5-dimethylthiazol-2-yl)-5-(3- carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium) (MTS) assay evaluation of the d-galactal-benzimidazole hybrid and an analogous galactoside derivative on a panel of cell lines with MTS assay showed no effect on cell viability up to 100 μM concentration. A subsequent functional assay using the MDA-MB-231 cell line demonstrated that the d-galactal-benzimidazole hybrid and the analogous galactoside derivative reduced the secretion of the proinflammatory cytokines interleukin-6 (IL-6) and IL-8 in a dose-dependent manner. Therefore, these compounds represent potential probes for galectin-8N pharmacology investigations and possibly promising leads for the design and synthesis of potent and selective galectin-8 inhibitors as potential antitumor and anti-inflammatory agents.
Collapse
Affiliation(s)
- Mujtaba Hassan
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-221 00 Lund, Sweden
- Department
of Medicinal Chemistry, Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
| | - Floriane Baussière
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-221 00 Lund, Sweden
| | - Samo Guzelj
- Department
of Medicinal Chemistry, Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
| | - Anders P. Sundin
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-221 00 Lund, Sweden
| | - Maria Håkansson
- SARomics
Biostructures AB, Medicon
Village, SE-223 63 Lund, Sweden
| | - Rebeka Kovačič
- SARomics
Biostructures AB, Medicon
Village, SE-223 63 Lund, Sweden
| | - Hakon Leffler
- Department
of Laboratory Medicine, Section MIG, Lund
University BMC-C1228b, Klinikgatan 28, 221 84 Lund, Sweden
| | - Tihomir Tomašič
- Department
of Medicinal Chemistry, Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
| | - Marko Anderluh
- Department
of Medicinal Chemistry, Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
| | - Žiga Jakopin
- Department
of Medicinal Chemistry, Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
| | - Ulf J. Nilsson
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-221 00 Lund, Sweden
| |
Collapse
|
8
|
Hassan M, van Klaveren S, Håkansson M, Diehl C, Kovačič R, Baussière F, Sundin AP, Dernovšek J, Walse B, Zetterberg F, Leffler H, Anderluh M, Tomašič T, Jakopin Ž, Nilsson UJ. Benzimidazole-galactosides bind selectively to the Galectin-8 N-Terminal domain: Structure-based design and optimisation. Eur J Med Chem 2021; 223:113664. [PMID: 34225180 DOI: 10.1016/j.ejmech.2021.113664] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 06/13/2021] [Accepted: 06/19/2021] [Indexed: 10/21/2022]
Abstract
We have obtained the X-ray crystal structure of the galectin-8 N-terminal domain (galectin-8N) with a previously reported quinoline-galactoside ligand at a resolution of 1.6 Å. Based on this X-ray structure, a collection of galactosides derivatised at O3 with triazole, benzimidazole, benzothiazole, and benzoxazole moieties were designed and synthesised. This led to the discovery of a 3-O-(N-methylbenzimidazolylmethyl)-galactoside with a Kd of 1.8 μM for galectin-8N, the most potent selective synthetic galectin-8N ligand to date. Molecular dynamics simulations showed that benzimidazole-galactoside derivatives bind the non-conserved amino acid Gln47, accounting for the higher selectivity for galectin-8N. Galectin-8 is a carbohydrate-binding protein that plays a key role in pathological lymphangiogenesis, modulation of the immune system, and autophagy. Thus, the benzimidazole-derivatised galactosides represent promising compounds for studies of the pathological implications of galectin-8, as well as a starting point for the development of anti-tumour and anti-inflammatory therapeutics targeting galectin-8.
Collapse
Affiliation(s)
- Mujtaba Hassan
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-221 00, Lund, Sweden; University of Ljubljana, Faculty of Pharmacy, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
| | - Sjors van Klaveren
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-221 00, Lund, Sweden; University of Ljubljana, Faculty of Pharmacy, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
| | - Maria Håkansson
- SARomics Biostructures AB, Medicon Village, SE-223 81, Lund, Sweden
| | - Carl Diehl
- SARomics Biostructures AB, Medicon Village, SE-223 81, Lund, Sweden
| | - Rebeka Kovačič
- SARomics Biostructures AB, Medicon Village, SE-223 81, Lund, Sweden
| | - Floriane Baussière
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-221 00, Lund, Sweden
| | - Anders P Sundin
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-221 00, Lund, Sweden
| | - Jaka Dernovšek
- University of Ljubljana, Faculty of Pharmacy, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
| | - Björn Walse
- SARomics Biostructures AB, Medicon Village, SE-223 81, Lund, Sweden
| | - Fredrik Zetterberg
- Galecto Biotech AB, Sahlgrenska Science Park, Medicinaregatan 8 A, SE-413 46, Gothenburg, Sweden
| | - Hakon Leffler
- Department of Laboratory Medicine, Section MIG, Lund University BMC-C1228b, Klinikgatan 28, 221 84, Lund, Sweden
| | - Marko Anderluh
- University of Ljubljana, Faculty of Pharmacy, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
| | - Tihomir Tomašič
- University of Ljubljana, Faculty of Pharmacy, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
| | - Žiga Jakopin
- University of Ljubljana, Faculty of Pharmacy, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
| | - Ulf J Nilsson
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-221 00, Lund, Sweden.
| |
Collapse
|
9
|
Solvent-Free Approaches in Carbohydrate Synthetic Chemistry: Role of Catalysis in Reactivity and Selectivity. Catalysts 2020. [DOI: 10.3390/catal10101142] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Owing to their abundance in biomass and availability at a low cost, carbohydrates are very useful precursors for products of interest in a broad range of scientific applications. For example, they can be either converted into basic chemicals or used as chiral precursors for the synthesis of potentially bioactive molecules, even including nonsaccharide targets; in addition, there is also a broad interest toward the potential of synthetic sugar-containing structures in the field of functional materials. Synthetic elaboration of carbohydrates, in both the selective modification of functional groups and the assembly of oligomeric structures, is not trivial and often entails experimentally demanding approaches practiced by specialized groups. Over the last years, a large number of solvent-free synthetic methods have appeared in the literature, often being endowed with several advantages such as greenness, experimental simplicity, and a larger scope than analogous reactions in solution. Most of these methods are catalytically promoted, and the catalyst often plays a key role in the selectivity associated with the process. This review aims to describe the significant recent contributions in the solvent-free synthetic chemistry of carbohydrates, devoting a special critical focus on both the mechanistic role of the catalysts employed and the differences evidenced so far with corresponding methods in solution.
Collapse
|
10
|
Luo T, Zhang Y, Xi J, Lu Y, Dong H. Improved Synthesis of Sulfur-Containing Glycosides by Suppressing Thioacetyl Migration. Front Chem 2020; 8:319. [PMID: 32391332 PMCID: PMC7191076 DOI: 10.3389/fchem.2020.00319] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 03/30/2020] [Indexed: 11/18/2022] Open
Abstract
Complex mixtures were often observed when we attempted to synthesize 4-thio- and 2,4-dithio-glycoside derivatives by double parallel and double serial inversion, thus leading to no or low yields of target products. The reason was later found to be that many unexpected side products were produced when a nucleophile substituted the leaving group on the substrate containing the thioacetate group. We hypothesized that thioacetyl migration is prone to occur due to the labile thioacetate group even under weak basic conditions caused by the nucleophile, leading to this result. Therefore, we managed to inhibit the generation of thiol groups from thioacetate groups by the addition of an appropriate amount of conjugate acid/anhydride, successfully improving the synthesis of 4-thio- and 2,4-dithio-glycoside derivatives. The target products which were previously difficult to synthesize, were herein obtained in relatively high yields. Finally, 4-deoxy- and 2,4-dideoxy-glycoside derivatives were efficiently synthesized through the removal of thioacetate groups under UV light, starting from 4-thio- and 2,4-dithio-glycoside derivatives.
Collapse
Affiliation(s)
- Tao Luo
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Zhang
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science and Technology, Wuhan, China
| | - Jiafeng Xi
- Analysis Center of College of Science & Technology, Hebei Agricultural University, Huanghua, China
| | - Yuchao Lu
- Analysis Center of College of Science & Technology, Hebei Agricultural University, Huanghua, China
| | - Hai Dong
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
11
|
Dussouy C, Kishor C, Lambert A, Lamoureux C, Blanchard H, Grandjean C. Linear triazole-linked pseudo oligogalactosides as scaffolds for galectin inhibitor development. Chem Biol Drug Des 2020; 96:1123-1133. [PMID: 32220037 DOI: 10.1111/cbdd.13683] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 01/10/2020] [Accepted: 03/14/2020] [Indexed: 11/30/2022]
Abstract
Galectins play key roles in numerous biological processes. Their mode of action depends on their localization which can be extracellular, cytoplasmic, or nuclear and is partly mediated through interactions with β-galactose containing glycans. Galectins have emerged as novel therapeutic targets notably for the treatment of inflammatory disorders and cancers. This has stimulated the design of carbohydrate-based inhibitors targeting the carbohydrate recognition domains (CRDs) of the galectins. Pursuing this approach, we reasoned that linear oligogalactosides obtained by straightforward iterative click chemistry could mimic poly-lactosamine motifs expressed at eukaryote cell surfaces which the extracellular form of galectin-3, a prominent member of the galectin family, specifically recognizes. Affinities toward galectin-3 consistently increased with the length of the representative oligogalactosides but without reaching that of oligo-lactosamines. Elucidation of the X-ray crystal structures of the galectin-3 CRD in complex with a synthesized di- and tri-galactoside confirmed that the compounds bind within the carbohydrate-binding site. The atomic structures revealed that binding interactions mainly occur with the galactose moiety at the non-reducing end, primarily with subsites C and D of the CRD, differing from oligo-lactosamine which bind more consistently across the whole groove formed by the five subsites (A-E) of the galectin-3 CRD.
Collapse
Affiliation(s)
- Christophe Dussouy
- Unité Fonctionnalité et Ingénierie des Protéines (UFIP), CNRS, UMR 6286, Université de Nantes, Nantes, France
| | - Chandan Kishor
- Institute for Glycomics, Griffith University, Gold Coast, QLD, Australia
| | - Annie Lambert
- Unité Fonctionnalité et Ingénierie des Protéines (UFIP), CNRS, UMR 6286, Université de Nantes, Nantes, France
| | - Clément Lamoureux
- Unité Fonctionnalité et Ingénierie des Protéines (UFIP), CNRS, UMR 6286, Université de Nantes, Nantes, France
| | - Helen Blanchard
- Institute for Glycomics, Griffith University, Gold Coast, QLD, Australia.,School of Chemistry and Molecular Bioscience, and Molecular Horizons, University of Wollongong, Wollongong, NSW, Australia
| | - Cyrille Grandjean
- Unité Fonctionnalité et Ingénierie des Protéines (UFIP), CNRS, UMR 6286, Université de Nantes, Nantes, France
| |
Collapse
|
12
|
Lv J, Luo T, Zou D, Dong H. Using DMF as Both a Catalyst and Cosolvent for the Regioselective Silylation of Polyols and Diols. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901195] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jian Lv
- Key Laboratory for Large-Format Battery Materials and System; Ministry of Education; School of Chemistry & Chemical Engineering; Huazhong University of Science & Technology; Luoyu Road 1037 430074 Hongshan Wuhan P.R. China
| | - Tao Luo
- Key Laboratory for Large-Format Battery Materials and System; Ministry of Education; School of Chemistry & Chemical Engineering; Huazhong University of Science & Technology; Luoyu Road 1037 430074 Hongshan Wuhan P.R. China
| | - Dapeng Zou
- The College of Chemistry and Molecular Engineering; Zhengzhou University; 450052 Zhengzhou P. R. China
| | - Hai Dong
- Key Laboratory for Large-Format Battery Materials and System; Ministry of Education; School of Chemistry & Chemical Engineering; Huazhong University of Science & Technology; Luoyu Road 1037 430074 Hongshan Wuhan P.R. China
| |
Collapse
|
13
|
One-pot synthesis of orthogonally protected sugars through sequential base-promoted/acid-catalyzed steps: A solvent-free approach with self-generation of a catalytic species. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.05.066] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
14
|
Wang T, Demchenko AV. Synthesis of carbohydrate building blocks via regioselective uniform protection/deprotection strategies. Org Biomol Chem 2019; 17:4934-4950. [PMID: 31044205 DOI: 10.1039/c9ob00573k] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Discussed herein is the synthesis of partially protected carbohydrates by manipulating only one type of a protecting group for a given substrate. The first focus of this review is the uniform protection of an unprotected starting material in a way that only one (or two) hydroxyl group remains unprotected. The second focus involves regioselective partial deprotection of uniformly protected compounds in a way that only one (or two) hydroxyl group becomes liberated.
Collapse
Affiliation(s)
- Tinghua Wang
- Department of Chemistry and Biochemistry, University of Missouri - St Louis, One University Boulevard, St Louis, Missouri 63121, USA.
| | - Alexei V Demchenko
- Department of Chemistry and Biochemistry, University of Missouri - St Louis, One University Boulevard, St Louis, Missouri 63121, USA.
| |
Collapse
|
15
|
Vucko T, Pellegrini Moïse N, Lamandé-Langle S. Value-added carbohydrate building blocks by regioselective O-alkylation of C-glucosyl compounds. Carbohydr Res 2019; 477:1-10. [DOI: 10.1016/j.carres.2019.03.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/19/2019] [Accepted: 03/19/2019] [Indexed: 10/27/2022]
|
16
|
Dimakos V, Taylor MS. Site-Selective Functionalization of Hydroxyl Groups in Carbohydrate Derivatives. Chem Rev 2018; 118:11457-11517. [DOI: 10.1021/acs.chemrev.8b00442] [Citation(s) in RCA: 198] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Victoria Dimakos
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Mark S. Taylor
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| |
Collapse
|
17
|
Xu H, Zhang Y, Dong H, Lu Y, Pei Y, Pei Z. Organotin-catalyzed regioselective benzylation of carbohydrate trans-diols. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.08.043] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
18
|
Gouasmat A, Lemétais A, Solles J, Bourdreux Y, Beau JM. Catalytic Iron(III) Chloride Mediated Site-Selective Protection of Mono- and Disaccharides and One Trisaccharide. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700538] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Alexandra Gouasmat
- Laboratoire de Synthèse de Biomolécules; Institut de Chimie Moléculaire et des Matériaux d'Orsay; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 91405 Orsay France
| | - Aurélie Lemétais
- Laboratoire de Synthèse de Biomolécules; Institut de Chimie Moléculaire et des Matériaux d'Orsay; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 91405 Orsay France
| | - Julien Solles
- Laboratoire de Synthèse de Biomolécules; Institut de Chimie Moléculaire et des Matériaux d'Orsay; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 91405 Orsay France
| | - Yann Bourdreux
- Laboratoire de Synthèse de Biomolécules; Institut de Chimie Moléculaire et des Matériaux d'Orsay; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 91405 Orsay France
| | - Jean-Marie Beau
- Laboratoire de Synthèse de Biomolécules; Institut de Chimie Moléculaire et des Matériaux d'Orsay; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 91405 Orsay France
- Institut de Chimie des Substances Naturelles, CNRS UPR2301; Univ. Paris-Sud; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
| |
Collapse
|
19
|
Traboni S, Bedini E, Iadonisi A. Solvent-Free One-Pot Diversified Protection of Saccharide Polyols Via Regioselective Tritylations. ChemistrySelect 2017. [DOI: 10.1002/slct.201701033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Serena Traboni
- Department of Chemical Sciences; University of Naples Federico II; Via Cinthia 4 I-80126 Naples Italy
| | - Emiliano Bedini
- Department of Chemical Sciences; University of Naples Federico II; Via Cinthia 4 I-80126 Naples Italy
| | - Alfonso Iadonisi
- Department of Chemical Sciences; University of Naples Federico II; Via Cinthia 4 I-80126 Naples Italy
| |
Collapse
|
20
|
Ren B, Lv J, Zhang Y, Tian J, Dong H. Highly Efficient Selective Benzylation of Carbohydrates Catalyzed by Iron(III) with Silver Oxide and Bromide Anion as Co-catalysts. ChemCatChem 2017. [DOI: 10.1002/cctc.201601558] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bo Ren
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry & Chemical Engineering; Huazhong University of Science & Technology; Luoyu Road 1037 430074 Hongshan Wuhan P.R. China
| | - Jian Lv
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry & Chemical Engineering; Huazhong University of Science & Technology; Luoyu Road 1037 430074 Hongshan Wuhan P.R. China
| | - Yu Zhang
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry & Chemical Engineering; Huazhong University of Science & Technology; Luoyu Road 1037 430074 Hongshan Wuhan P.R. China
| | - Jun Tian
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry & Chemical Engineering; Huazhong University of Science & Technology; Luoyu Road 1037 430074 Hongshan Wuhan P.R. China
| | - Hai Dong
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry & Chemical Engineering; Huazhong University of Science & Technology; Luoyu Road 1037 430074 Hongshan Wuhan P.R. China
| |
Collapse
|
21
|
Traboni S, Bedini E, Iadonisi A. Orthogonal protection of saccharide polyols through solvent-free one-pot sequences based on regioselective silylations. Beilstein J Org Chem 2016; 12:2748-2756. [PMID: 28144345 PMCID: PMC5238545 DOI: 10.3762/bjoc.12.271] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 11/30/2016] [Indexed: 11/23/2022] Open
Abstract
tert-Butyldimethylsilyl (TBDMS) and tert-butyldiphenylsilyl (TBDPS) are alcohol protecting groups widely employed in organic synthesis in view of their compatibility with a wide range of conditions. Their regioselective installation on polyols generally requires lengthy reactions and the use of high boiling solvents. In the first part of this paper we demonstrate that regioselective silylation of sugar polyols can be conducted in short times with the requisite silyl chloride and a very limited excess of pyridine (2-3 equivalents). Under these conditions, that can be regarded as solvent-free conditions in view of the insolubility of the polyol substrates, the reactions are faster than in most examples reported in the literature, and can even be further accelerated with a catalytic amount of tetrabutylammonium bromide (TBAB). The strategy proved also useful for either the selective TBDMS protection of secondary alcohols or the fast per-O-trimethylsilylation of saccharide polyols. In the second part of the paper the scope of the silylation approach was significantly extended with the development of unprecedented "one-pot" and "solvent-free" sequences allowing the regioselective silylation/alkylation (or the reverse sequence) of saccharide polyols in short times. The developed methodologies represent a very useful and experimentally simple tool for the straightforward access to saccharide building-blocks useful in organic synthesis.
Collapse
Affiliation(s)
- Serena Traboni
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy
| | - Emiliano Bedini
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy
| | - Alfonso Iadonisi
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy
| |
Collapse
|