Process for producing oseltamivir phosphate and intermediate compound
US9139514B2 · kind B2 · utility
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Key dates
| Filing date | Jul 2, 2013 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Mar 19, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed are a process suited to large scale synthesis with high yield for producing oseltamivir phosphate, in which a preparation of oseltamivir phosphate which is highly safe as a pharmaceutical product can be produced, and an intermediate compound for producing oseltamivir phosphate. In this production process, an intermediate compound represented by general formula (V) is synthesized by employing Michael reaction/Michael reaction/Horner-Wadsworth-Emmons reaction, and oseltamivir phosphate is produced by converting the substituent groups in this intermediate compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.