Process for preparation of roflumilast
US9233925B2 · kind B2 · utility
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3Claims
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Assignee
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Key dates
| Filing date | Jun 10, 2015 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Jun 10, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D319/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides novel processes for the preparation of N-substituted benzamides having the formula VIc:In some embodiments, the invention provides a process for preparation of roflumilast and other pharmaceutically active species. Novel compounds, including intermediates for the synthesis of roflumilast, are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.