Method of preparing clarithromycin
US6809188B1 · kind B1 · utility
18Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2002 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | May 1, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Clarithromycin can be easily prepared by reacting erythromycin A N-oxide with a methylating agent to obtain 6-O-methylerythromycin A N-oxide; and treating 6-O-methylerythromycin A N-oxide obtained above with a reducing agent in a high yield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.