Method for the preparation of citalopram
US6660873B2 · kind B2 · utility
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31References
21Claims
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Key dates
| Filing date | Nov 8, 2002 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Nov 8, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/88
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for the preparation of citalopram comprising reaction of a compound of formula 5-aminomethyl-1-(3-dimethylamino-propyl)-1-(4-fluoro-phenyl)-1,3-dihydro-isobenzofuran with an oxidising agent to prepare citalopram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.