Precursor phase and use thereof for preparing the magnesium tetrahydrate salt of an omeprazole enantiomer
US8592601B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Mar 31, 2011 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Oct 14, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P1/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A precursor phase of the magnesium tetrahydrate salt of an omeprazole enantiomer, and also processes for preparing it and its use for the preparation of the magnesium tetrahydrate salt are described. Crystals of the magnesium tetrahydrate salt thus obtained, and their uses, especially in the synthesis of the dihydrate form A of the magnesium salt of the enantiomer or as medicament are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.