Process for preparing single enantiomer narwedine
US6392038B1 · kind B1 · utility
1Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2000 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Jan 10, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P25/28
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of substantially single enantiomer (−)-narwedine comprises seeding a solution of racemic narwedine dissolved in a solvent with substantially single enantiomer (−)-narwedine, provided that if an added amine base is present the ratic solvent:added amine base is greater than 15:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.