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Kederienė V, Rousseau J, Schuler M, Šačkus A, Tatibouët A. Copper-catalyzed S-arylation of Furanose-Fused Oxazolidine-2-thiones. Molecules 2022; 27:molecules27175597. [PMID: 36080364 PMCID: PMC9457760 DOI: 10.3390/molecules27175597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/26/2022] [Accepted: 08/26/2022] [Indexed: 11/16/2022] Open
Abstract
The 1,3-oxazolidine-2-thiones (OZTs) are important chiral molecules, especially in asymmetric synthesis. These compounds serve as important active units in biologically active compounds. Herein, carbohydrate anchored OZTs were explored to develop a copper-catalyzed C-S bond formation with aryl iodides. Chemoselective S-arylation was observed, with copper iodide and dimethylethylenediamine (DMEDA) as the best ligand in dioxane at 60–90 °C. The corresponding chiral oxazolines were obtained in reasonable to good yields under relatively mild reaction conditions. This approach is cheap, as using one of the cheapest transition metals, a simple protocol and various functional group tolerance make it a valuable strategy for getting S-substituted furanose-fused OZT. The structures of the novel carbohydrates were confirmed by NMR spectroscopy and an HRMS analysis.
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Affiliation(s)
- Vilija Kederienė
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania
- Correspondence: (V.K.); (A.T.)
| | - Jolanta Rousseau
- Univ. Artois, CNRS, Centrale Lille, Univ. Lille, UMR 8181–UCCS–Unité de Catalyse et Chimie du Solide, Faculty of Science Jean Perrin, Rue Jean Souvraz SP 18, F-62300 Lens, France
| | - Marie Schuler
- Institute de Chimie Organique et Analitique (ICOA), Université d’Orléans, UMR-CNRS 7311, BP 6759, F-45067 Orléans, France
| | - Algirdas Šačkus
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, LT-50254 Kaunas, Lithuania
| | - Arnaud Tatibouët
- Institute de Chimie Organique et Analitique (ICOA), Université d’Orléans, UMR-CNRS 7311, BP 6759, F-45067 Orléans, France
- Correspondence: (V.K.); (A.T.)
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Désiré J, Foucart Q, Poveda A, Gourlaouen G, Shimadate Y, Kise M, Proceviat C, Ashmus R, Vocadlo DJ, Jiménez-Barbero J, Kato A, Blériot Y. Synthesis, conformational analysis and glycosidase inhibition of bicyclic nojirimycin C-glycosides based on an octahydrofuro[3,2-b]pyridine motif. Carbohydr Res 2021; 511:108491. [PMID: 34953389 DOI: 10.1016/j.carres.2021.108491] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 12/11/2021] [Accepted: 12/13/2021] [Indexed: 12/13/2022]
Abstract
A set of bicyclic iminosugar C-glycosides, based on an octahydrofuro[3,2-b]pyridine motif, has been synthesized from a C-allyl iminosugar exploiting a debenzylative iodocycloetherification and an iodine nucleophilic displacement as the key steps. The halogen allowed the introduction of a range of aglycon moieties of different sizes bearing several functionalities such as alcohol, amine, amide and triazole. In these carbohydrate mimics the fused THF ring forces the piperidine to adopt a flattened 4C1 conformation according to NMR and DFT calculations studies. In their deprotected form, these bicycles were assayed on a panel of 23 glycosidases. The iminosugars displaying hydrophobic aglycon moieties proved to be superior glycosidase inhibitors, leading to a low micromolar inhibition of human lysosome β-glucosidase (compound 11; IC50 = 2.7 μM) and rice α-glucosidase (compound 10; IC50 = 7.7 μM). Finally, the loose structural analogy of these derivatives with Thiamet G, a potent OGA bicyclic inhibitor, was illustrated by the weak OGA inhibitory activity (Ki = 140 μM) of iminosugar 5.
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Affiliation(s)
- Jérôme Désiré
- Université de Poitiers, IC2MP, UMR CNRS 7285, Equipe "Synthèse Organique", Groupe Glycochimie, 4 rue Michel Brunet, 86073, Poitiers Cedex 9, France.
| | - Quentin Foucart
- Université de Poitiers, IC2MP, UMR CNRS 7285, Equipe "Synthèse Organique", Groupe Glycochimie, 4 rue Michel Brunet, 86073, Poitiers Cedex 9, France
| | - Ana Poveda
- CIC bioGUNE, Parque technologico de Bizkaia, Edif. 801A-1°, Derio-Bizkaia 48160, and Ikerbasque, Basque Foundation for Science, Maria Lopez de Haro 3, 48013, Bilbao, Spain
| | - Gurvan Gourlaouen
- Université de Poitiers, IC2MP, UMR CNRS 7285, Equipe "Synthèse Organique", Groupe Glycochimie, 4 rue Michel Brunet, 86073, Poitiers Cedex 9, France
| | - Yuna Shimadate
- Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Maki Kise
- Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Cameron Proceviat
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada, V5S 1P6
| | - Roger Ashmus
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada, V5S 1P6
| | - David J Vocadlo
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada, V5S 1P6
| | - Jesús Jiménez-Barbero
- CIC bioGUNE, Parque technologico de Bizkaia, Edif. 801A-1°, Derio-Bizkaia 48160, and Ikerbasque, Basque Foundation for Science, Maria Lopez de Haro 3, 48013, Bilbao, Spain
| | - Atsushi Kato
- Department of Hospital Pharmacy, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan.
| | - Yves Blériot
- Université de Poitiers, IC2MP, UMR CNRS 7285, Equipe "Synthèse Organique", Groupe Glycochimie, 4 rue Michel Brunet, 86073, Poitiers Cedex 9, France.
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