Process for the preparation of 6-alkoxy-substituted penicillins
US4051126A · kind A · utility
4Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1976 |
| Grant date | Sep 27, 1977 |
| Priority date | — |
| Expiry date | Jul 13, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D499/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An improved process of preparing a 6-alkoxy-substituted penicillin or penicillin sulfoxide is disclosed. This process comprises adding a halogenating agent to penicillin or penicillin sulfoxide while cooling, and then adding an alkali metal alcoholate to the hydrogenation product in the presence of an alcohol corresponding to the alcoholate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.