Process for the preparation of 3-substituted 4-phenyl-piperidine derivative
US6444822B1 · kind B1 · utility
2Cited by
3References
9Claims
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Key dates
| Filing date | Jul 28, 2000 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Jul 28, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D211/78
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Described herein is the process for the preparation of 3-substituted 4-phenyl-piperidine derivatives of formula (I) in which X is selected from H and F, and R is selected from the group consisting of H, C1-C6 alkyl, C3-C6 alkenyl, and benzyl, comprising three steps starting from the monoamide of malonic acid and cinnamic aldehyde, or derivatives thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.