Preparation of 3-methoxymethylcephalosporins
US4008231A · kind A · utility
3Cited by
1References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1975 |
| Grant date | Feb 15, 1977 |
| Priority date | — |
| Expiry date | Sep 15, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D501/26
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A 3-methoxymethylcephalosporin acid is prepared by reacting a 3-hydroxymethylcephalosporin acid with a reagent selected from the group consisting of trifluoroacetic anhydride, phosphorus trichloride, phosphorus oxychloride, and thionyl chloride, and reacting the resulting intermediate with methanol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.