Process for preparing cephalexin monohydrate
US5142043A · kind A · utility
2Cited by
5References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 10, 1990 |
| Grant date | Aug 25, 1992 |
| Priority date | — |
| Expiry date | May 10, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/1804
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Cephalexin monohydrate prepared by the silylation of 7-ADCA is obtained in high yield and of improved purity when the silylation step is carried out by refluxing in a solvent having a boiling point of over 100.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.