Methods of o-demethylation and n-deprotection
US6291675A · kind A · utility
36Cited by
0References
18Claims
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Assignee
Inventors
Key dates
| Filing date | Jul 6, 1999 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Jul 6, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D489/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a method for N-deprotecting an opioid compound, a method for N-deprotecting and O-demethylating an opioid compound, a method for O-demethylating an opioid compound, and a method for O-demethylating a nonpeptidic delta agonist compound or an opioid compound having a tertiary amide with no significant reaction at amide groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.