Process for improved oxymorphone synthesis
US9938285B2 · kind B2 · utility
3Cited by
29References
12Claims
0Family size
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Inventors
Key dates
| Filing date | Jan 15, 2015 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Jan 15, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D489/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Processes for preparing oxymorphone are provided. Said processes encompass a step which is a hydrogenation of an 14-hydroxymorphinone salt in the presence of trifluoroacetic acid and/or a glycol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.