Processes for preparing clarithromycin polymorphs
US6624292B2 · kind B2 · utility
18Cited by
23References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2000 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Dec 15, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to processes for converting clarithromycin Form I to clarithromycin Form II, which include slurrying clarithromycin the Form I in water. The present invention also relates to processes for the preparation of clarithromycin Form II by converting erythromycin A to clarithromycin and thereafter converting clarithromycin Form I to clarithromycin Form II by slurrying.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.