Purification of montelukast
US7812168B2 · kind B2 · utility
1Cited by
16References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2006 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Mar 26, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P37/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides methods of purifying montelukast, a new isolated impurity of montelukast, method for its isolation, and method of using montelukast impurity as a reference marker and a reference standard.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.