Process and solvate of 2-methyl-thieno-benzodiazepine
US5631250A · kind A · utility
19Cited by
9References
10Claims
0Family size
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Key dates
| Filing date | Mar 24, 1995 |
| Grant date | May 20, 1997 |
| Priority date | — |
| Expiry date | Mar 24, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D495/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention provides lower alcohol solvates of 2-methyl-4-(4-methyl-1-piperazinyl)-10H-thieno[2,3-b][1,5]benzodiazepine (olanzapine) and a process for making such lower alcohol solyates of olanzapine. The invention provides a method for using such solyates of olanzapine to prepare substantially pure anhydrous Form I 2-methyl-thieno-benzodiazepine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.