Process for making montelukast and intermediates therefor
US7476748B2 · kind B2 · utility
1Cited by
10References
27Claims
0Family size
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Key dates
| Filing date | Nov 20, 2006 |
| Grant date | Jan 13, 2009 |
| Priority date | — |
| Expiry date | Nov 20, 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 (11)is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.