Processes for preparing anhydrous and hydrate forms of antihistaminic piperidine derivatives, polymorphs and pseudomorphs thereof
US7138524B2 · kind B2 · utility
6Cited by
30References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2002 |
| Grant date | Nov 21, 2006 |
| Priority date | — |
| Expiry date | Jun 3, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D211/22
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is related to novel processes for preparing anhydrous and hydrated forms of piperidine derivatives, polymorphs and pseudomorphs thereof of the formulaswhich are useful as antihistamines, antiallergic agents and bronchodilators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.