Stereoselective fusion glycosylation process for preparing 2'-deoxy-2',2'-difluoronucleosides and 2'-deoxy-2'-fluoronucleosides
US5401838A · kind A · utility
57Cited by
7References
18Claims
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Key dates
| Filing date | Apr 7, 1993 |
| Grant date | Mar 28, 1995 |
| Priority date | — |
| Expiry date | Apr 7, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07H19/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A stereoselective fusion glycosylation process for prearing beta-anomer enriched 2'-deoxy-2',2'-difluoronucleotides and 2'-deoxy-2'-fluoronucleosides by reacting an alpha-anomer enriched 2-deoxy-2,2-difluorocarbohydrate or 2-deoxy-2-fluorcarbohydrate with at least a 3 molar equivalent of a nucleobase derivative at a temperature sufficient to melt the carbohydrate and nucleobase derivative.
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