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Moskalik MY, Astakhova VV. Triflamides and Triflimides: Synthesis and Applications. Molecules 2022; 27:5201. [PMID: 36014447 PMCID: PMC9414225 DOI: 10.3390/molecules27165201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/24/2022] Open
Abstract
Among the variety of sulfonamides, triflamides (CF3SO2NHR, TfNHR) occupy a special position in organic chemistry. Triflamides are widely used as reagents, efficient catalysts or additives in numerous reactions. The reasons for the widespread use of these compounds are their high NH-acidity, lipophilicity, catalytic activity and specific chemical properties. Their strong electron-withdrawing properties and low nucleophilicity, combined with their high NH-acidity, makes it possible to use triflamides in a vast variety of organic reactions. This review is devoted to the synthesis and use of N-trifluoromethanesulfonyl derivatives in organic chemistry, medicine, biochemistry, catalysis and agriculture. Part of the work is a review of areas and examples of the use of bis(trifluoromethanesulfonyl)imide (triflimide, (CF3SO2)2NH, Tf2NH). Being one of the strongest NH-acids, triflimide, and especially its salts, are widely used as catalysts in cycloaddition reactions, Friedel-Crafts reactions, condensation reactions, heterocyclization and many others. Triflamides act as a source of nitrogen in C-amination (sulfonamidation) reactions, the products of which are useful building blocks in organic synthesis, catalysts and ligands in metal complex catalysis, and have found applications in medicine. The addition reactions of triflamide in the presence of oxidizing agents to alkenes and dienes are considered separately.
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Affiliation(s)
- Mikhail Y. Moskalik
- Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 664033 Irkutsk, Russia
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2,3,5-Tri-O-benzyl-d-xylofuranose. MOLBANK 2022. [DOI: 10.3390/m1382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The synthesis and crystallization of 2,3,5-tri-O-benzyl-d-xylofuranose permitted us to isolate the alpha anomer with a small contamination of the beta form (ca 10%), whose first crystallographic structure obtained in the P212121 space group was determined at 100 K up to a resolution of sin θmax/λ = 0.71 Å−1 and refined to an R1 value of 0.0171 with a Hirshfeld atom refinement (HAR) approach.
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Khanam A, Mandal PK. Direct N-glycosylation of tosyl and nosyl carbamates with trichloroacetimidate donors. NEW J CHEM 2021. [DOI: 10.1039/d1nj02051j] [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
Acidic sulphonamide reactants act as both catalysts and nucleophiles to afford the desired N-glycofuranosyl sulfonamides stereoselectively.
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Affiliation(s)
- Ariza Khanam
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extn, Sitapur Road, P.O. Box 173, Lucknow 226031, India
| | - Pintu Kumar Mandal
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extn, Sitapur Road, P.O. Box 173, Lucknow 226031, India
- Academy of Scientific and Innovative Research, Ghaziabad-201002, India
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Nielsen MM, Mała P, Baldursson EÞ, Pedersen CM. Self-promoted and stereospecific formation of N-glycosides. Chem Sci 2019; 10:5299-5307. [PMID: 31191886 PMCID: PMC6540880 DOI: 10.1039/c9sc00857h] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 04/15/2019] [Indexed: 12/20/2022] Open
Abstract
A stereoselective and self-promoted glycosylation for the synthesis of various N-glycosides and glycosyl sulfonamides from trichloroacetimidates is presented.
A stereoselective and self-promoted glycosylation for the synthesis of various N-glycosides and glycosyl sulfonamides from trichloroacetimidates is presented. No additional catalysts or promoters are needed in what is essentially a two-component reaction. When α-glucosyl trichloroacetimidates are employed, the reaction resulted in the stereospecific formation of the corresponding β-N-glucosides in high yields at ambient conditions. On the other hand, when equatorial glucosyl donors were used, the stereospecificity decreased and resulted in a mixture of anomers. By NMR-studies, it was concluded that this decrease in stereospecificity was due to an, until now, unpresented anomerization of the trichloroacetimidate under the very mildly acidic conditions. The mechanism and kinetics of the glycosylations have been studied by NMR-experiments, which gave an insight into the activation of trichloroacetimidates, suggesting an SNi-like mechanism involving ion pairs. The scope of glycosyl donors and sulfonamides was found to be very broad including popular N-protective groups and common glycosyl donors of various reactivity. Peracetylated GlcNAc trichloroacetimidate could be used without the need for any promotors or additives and a tyrosine side chain was glycosylated as an N-glycosyl carbamate. The N-carbamates and the N-sulfonyl groups functioned as orthogonal protective groups of the N-glycoside and hence allowed further N-functionalization without risking mutarotation of the N-glycoside. The N-glycosylation was also performed on a gram scale, without a drop in stereoselectivity nor yield.
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Affiliation(s)
- Michael Martin Nielsen
- Department of Chemistry , University of Copenhagen , Universitetsparken 5 , 2100 Copenhagen O , Denmark .
| | - Patrycja Mała
- Department of Chemistry , University of Copenhagen , Universitetsparken 5 , 2100 Copenhagen O , Denmark . .,Faculty of Chemistry , Adam Mickiewicz University , Umultowska 89b , 61614 Poznań , Poland
| | - Eirikur Þórir Baldursson
- Department of Chemistry , University of Copenhagen , Universitetsparken 5 , 2100 Copenhagen O , Denmark .
| | - Christian Marcus Pedersen
- Department of Chemistry , University of Copenhagen , Universitetsparken 5 , 2100 Copenhagen O , Denmark .
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Dai Y, Zheng J, Zhang Q. General Strategy for Stereoselective Synthesis of β- N-Glycosyl Sulfonamides via Palladium-Catalyzed Glycosylation. Org Lett 2018; 20:3923-3927. [PMID: 29916717 DOI: 10.1021/acs.orglett.8b01506] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A highly efficient and mild glycosylation reaction between 3,4- O-carbonate glycal and N-tosyl functionalized aliphatic and aromatic amines via palladium-catalyzed decarboxylative allylation is disclosed. A wide range of highly functionalized 2,3-unsaturated β- N-glycosides are furnished in good to excellent yields and complete regioselectivity and stereoselectivity. In addition, applications of the glycosyl sulfonamides as the precursor to assemble functional derivatives have also been explored, including glycosylation, dihydroxylation, and nucleophilic addition to the N-glycosides.
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Affiliation(s)
- Yuanwei Dai
- Department of Chemistry , University at Albany, State University of New York , 1400 Washington Avenue , Albany , New York 12222 , United States
| | - Jianfeng Zheng
- Department of Chemistry , University at Albany, State University of New York , 1400 Washington Avenue , Albany , New York 12222 , United States
| | - Qiang Zhang
- Department of Chemistry , University at Albany, State University of New York , 1400 Washington Avenue , Albany , New York 12222 , United States
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Xavier NM, Porcheron A, Batista D, Jorda R, Řezníčková E, Kryštof V, Oliveira MC. Exploitation of new structurally diverse d-glucuronamide-containing N-glycosyl compounds: synthesis and anticancer potential. Org Biomol Chem 2018; 15:4667-4680. [PMID: 28517004 DOI: 10.1039/c7ob00472a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The synthesis and anticancer evaluation of novel N-glycosyl derivatives containing N-substituted glucuronamide moieties, as nucleoside analogs or as prospective mimetics of glycosyl phosphates or of nucleotides, is reported. These compounds comprise N-anomerically-linked nucleobases or motifs that are surrogates of a phosphate group, such as sulfonamide or phosphoramidate moieties. 1-Sulfonamido glucuronamides containing N-benzyl, N-propargyl or N-dodecyl carboxamide units were synthesized through glycosylation of methanesulfonamide with tetra-O-acetyl glucuronamides. 1-Azido glucuronamides were accessed by microwave-assisted reactions of tetra-O-acetyl glucuronamides with TMSN3 and were further converted into N-glycosylphosphoramidates by treatment with trimethyl phosphite. Potential glucuronamide-based nucleotide mimetics comprising both an anomeric sulfonamide/phosphoramidate group and a benzyltriazolylmethyl amide system at C-5, as nucleobase mimetics, were synthesized via 'click' cycloaddition of N-propargyl glucuronamide derivatives with benzyl azide. N-Dodecyl tetra-O-acetyl glucuronamides were converted into uracil and purine nucleosides via N-glycosylation of the corresponding silylated nucleobases. Biological screening revealed significant antiproliferative activities of the N-dodecyl glucuronamide-containing sulfonamide, phosphoramidate and nucleosides in K562 and MCF-7 cells. The highest effect was exhibited by the N9-linked purine nucleoside in the breast cancer cell MCF-7 with a GI50 value similar to that of clinically used 5-fluorouracil. Immunoblotting and cell cycle analysis of K562 cells treated with the most active compound as well as evaluation of the effect of this nucleoside on the activities of caspases 3 and 7 showed induction of apoptosis as the mechanism of cell death.
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Affiliation(s)
- Nuno M Xavier
- Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Ed. C8, 5° Piso, Campo Grande, 1749-016 Lisboa, Portugal.
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Suthagar K, Jiao W, Munier-Lehmann H, Fairbanks AJ. Synthesis of sulfamide analogues of deoxthymidine monophosphate as potential inhibitors of mycobacterial cell wall biosynthesis. Carbohydr Res 2018; 457:32-40. [PMID: 29348046 DOI: 10.1016/j.carres.2018.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 01/08/2018] [Accepted: 01/08/2018] [Indexed: 11/26/2022]
Abstract
The recently discovered enzyme Mycobacterium tuberculosis thymidine monophosphate kinase (TMPKmt), which catalyses the phosphorylation of deoxythymidine monophosphate (dTMP) to give deoxythymidine diphosphate (dTDP), is indispensable for the growth and survival of M. tuberculosis as it plays an essential role in DNA synthesis. Inhibition of TMPKmt is an attractive avenue for the development of novel anti-tuberculosis agents. Based on the premise that sulfamide may be a suitable isostere of phosphate, deoxythymidine analogues comprising various substituted sulfamides at C5' were modelled in silico into the active site of TMPKmt (PDB accession code: 1N5K) using induced-fit docking methods. A selection of modelled compounds was synthesized, and their activity as inhibitors of TMPKmt was evaluated. Three compounds showed competitive inhibition of TMPKmt in the micromolar range (10-50 μM). Compounds were tested in vitro for anti-mycobacterial activity against M. smegmatis: three compounds showed weak anti-mycobacterial activity (MIC 250 μg/mL).
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Affiliation(s)
- Kajitha Suthagar
- Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
| | - Wanting Jiao
- Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand; Ferrier Research Institute, Victoria University of Wellington, PO Box 600, Wellington, 6140, New Zealand
| | - Hélène Munier-Lehmann
- Institut Pasteur, Unité de Chimie et Biocatalyse, 28 rue du Dr Roux, 75724, Paris Cedex 15, France; CNRS UMR3523, 28 rue du Dr Roux, France
| | - Antony J Fairbanks
- Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand; Biomolecular Interaction Centre, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand.
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Affiliation(s)
- Wei-Chih Wei
- Department of Chemistry; Fu Jen Catholic University; 24205 New Taipei City Taiwan
| | - Che-Chien Chang
- Department of Chemistry; Fu Jen Catholic University; 24205 New Taipei City Taiwan
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Suthagar K, Fairbanks AJ. Synthesis and anti-mycobacterial activity of glycosyl sulfamides of arabinofuranose. Org Biomol Chem 2016; 14:1748-54. [DOI: 10.1039/c5ob02317c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series ofarabino N-glycosyl sulfamides, forced to adopt the furanose form by removal of the 5-hydroxyl group, were synthesised as putative isosteric mimics of decaprenolphosphoarabinose, the donor processed by arabinosyltransferases during mycobacterial cell wall assembly.
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Affiliation(s)
- Kajitha Suthagar
- Department of Chemistry
- University of Canterbury
- Christchurch 8140
- New Zealand
| | - Antony J. Fairbanks
- Department of Chemistry
- University of Canterbury
- Christchurch 8140
- New Zealand
- Biomolecular Interaction Centre
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Suthagar K, Watson AJ, Wilkinson BL, Fairbanks AJ. Synthesis of arabinose glycosyl sulfamides as potential inhibitors of mycobacterial cell wall biosynthesis. Eur J Med Chem 2015; 102:153-66. [DOI: 10.1016/j.ejmech.2015.07.050] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 07/17/2015] [Accepted: 07/30/2015] [Indexed: 10/23/2022]
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