Method of preparing montelukast and intermediates used therein
US8217174B2 · kind B2 · utility
1Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2007 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Mar 15, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P35/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a method for preparing montelukast, an inhibitor against leukotrienes, and an intermediate used therein. According to the inventive method, high-purity montelukast or its sodium salt can be prepared in a high yield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.