Method of forming a solution of papavrine carbanion
US4501891A · kind A · utility
1Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1982 |
| Grant date | Feb 26, 1985 |
| Priority date | — |
| Expiry date | Feb 11, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D217/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to the new papaverine carbanion of the formula: ##STR1## and to a preparation process of the same comprising reacting on papaverine, in a solvent, a slight excess of a highly basic agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.