Process for the preparation of Efavirenz using keton solvents
US9670169B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | May 7, 2015 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | May 7, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D265/18
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An improved process for the preparation of Efavirenz which avoids the distillations of the solvents is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.