Processes for producing racemic piperidine derivative and for producing optically active piperidine derivative
US6962998B2 · kind B2 · utility
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Key dates
| Filing date | Jun 4, 2001 |
| Grant date | Nov 8, 2005 |
| Priority date | — |
| Expiry date | Apr 15, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed are a method for producing racemic piperidine derivatives by processing optically-active piperidine derivatives in a hydrogen atmosphere in the presence of a reducing catalyst; and a method for producing optically-active piperidine derivatives or their acid salts by optically resolving the racemic piperidine derivatives obtained in the former method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.