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Someya H, Itoh T, Aoki S. Synthesis of Disaccharide Nucleosides Utilizing the Temporary Protection of the 2',3'-cis-Diol of Ribonucleosides by a Boronic Ester. Molecules 2017; 22:E1650. [PMID: 28974027 PMCID: PMC6151833 DOI: 10.3390/molecules22101650] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 09/24/2017] [Accepted: 09/29/2017] [Indexed: 11/16/2022] Open
Abstract
Disaccharide nucleosides are an important class of natural compounds that have a variety of biological activities. In this study, we report on the synthesis of disaccharide nucleosides utilizing the temporary protection of the 2',3'-cis-diol of ribonucleosides, such as adenosine, guanosine, uridine, 5-metyluridine, 5-fluorouridine and cytidine, by a boronic ester. The temporary protection of the above ribonucleosides permits the regioselective O-glycosylation of the 5'-hydroxyl group with thioglycosides using a p-toluenesulfenyl chloride (p-TolSCl)/silver triflate (AgOTf) promoter system to afford the corresponding disaccharide nucleosides in fairly good chemical yields. The formation of a boronic ester prepared from uridine and 4-(trifluoromethyl)phenylboronic acid was examined by ¹H, 11B and 19F NMR spectroscopy.
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Affiliation(s)
- Hidehisa Someya
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.
| | - Taiki Itoh
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.
| | - Shin Aoki
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.
- Imaging Frontier Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.
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Nokami T, Nozaki Y, Saigusa Y, Shibuya A, Manabe S, Ito Y, Yoshida JI. Glycosyl Sulfonium Ions as Storable Intermediates for Glycosylations. Org Lett 2011; 13:1544-7. [DOI: 10.1021/ol200242u] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Toshiki Nokami
- Department of Synthetic Chemistry, Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan, RIKEN Advanced Science Institute, Hirosawa, Wako, Saitama 351-0198, Japan, and ERATO JST, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yuki Nozaki
- Department of Synthetic Chemistry, Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan, RIKEN Advanced Science Institute, Hirosawa, Wako, Saitama 351-0198, Japan, and ERATO JST, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yoshihiro Saigusa
- Department of Synthetic Chemistry, Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan, RIKEN Advanced Science Institute, Hirosawa, Wako, Saitama 351-0198, Japan, and ERATO JST, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Akito Shibuya
- Department of Synthetic Chemistry, Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan, RIKEN Advanced Science Institute, Hirosawa, Wako, Saitama 351-0198, Japan, and ERATO JST, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Shino Manabe
- Department of Synthetic Chemistry, Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan, RIKEN Advanced Science Institute, Hirosawa, Wako, Saitama 351-0198, Japan, and ERATO JST, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yukishige Ito
- Department of Synthetic Chemistry, Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan, RIKEN Advanced Science Institute, Hirosawa, Wako, Saitama 351-0198, Japan, and ERATO JST, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Jun-ichi Yoshida
- Department of Synthetic Chemistry, Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan, RIKEN Advanced Science Institute, Hirosawa, Wako, Saitama 351-0198, Japan, and ERATO JST, Hirosawa, Wako, Saitama 351-0198, Japan
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