Piperazine derivatives and their use as synthesis intermediates
US7381821B2 · kind B2 · utility
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Key dates
| Filing date | Jan 20, 2004 |
| Grant date | Jun 3, 2008 |
| Priority date | — |
| Expiry date | Jun 5, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D295/15
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to new enantiomerically pure piperazine derivatives of formula (I) wherein Y represents hydroxy or a leaving group and n is 1, 2, 3, 4 or 5, and to their use as synthesis intermediates, especially for the preparation of pharmaceutically active compounds
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.