Process for the preparation of Tazarotene
US7273937B2 · kind B2 · utility
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2Claims
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Key dates
| Filing date | Mar 7, 2006 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Mar 7, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D409/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Tazarotene is prepared by deoxygenation of the corresponding S-oxide, in turn obtained according to two alternative synthetic pathways.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.