Process for making montelukast and intermediates therefor
US7501517B2 · kind B2 · utility
2Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2005 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Apr 26, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for making montelukast, a pharmaceutically useful compound of the following formula and salts thereof:using a compound of formula (4)is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.