Methods for making thebaine or its acid salts
US6958398B1 · kind B1 · utility
15Cited by
2References
49Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2003 |
| Grant date | Oct 25, 2005 |
| Priority date | — |
| Expiry date | Feb 21, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D489/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Methods for making thebaine and an acid salt of thebaine are disclosed herein. In one embodiment, an acid salt of thebaine is made from codeinone or an acid salt of one or more of the following: 8-methoxy-Δ6-dihydrothebaine, codeinone dimethyl ketal, and neopinone dimethyl ketal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.