Method of preparation of 3-methylene cepham compounds
US4513134A · kind A · utility
3Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1983 |
| Grant date | Apr 23, 1985 |
| Priority date | — |
| Expiry date | Apr 21, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D501/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for the preparation of 3-methylene cepham compounds which comprises reacting 3-halomethyl butenoate derivatives of thiazolinoazetidinone with an aqueous acid solution in a mixed organic solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.