Process for forming amorphous atorvastatin
US7939675B2 · kind B2 · utility
3Cited by
37References
3Claims
0Family size
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Key dates
| Filing date | Oct 12, 2005 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Aug 18, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P35/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A process for forming amorphous atorvastatin comprising the steps of dissolving atorvastatin in a non-hydroxylic solvent and removing the solvent by freeze-drying, as well as processes of dissolving atorvastatin in a hydroxylic solvent with a solubilizing agent or an alkalizing agent or an antioxidant and removing the solvent by freeze-drying to afford amorphous atorvastatin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.