Process for preparing 4-(hydroxy)-[1,4′]bipiperidinyl-l'carboxylic acid tert-butyl ester
US7276609B2 · kind B2 · utility
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3References
10Claims
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Key dates
| Filing date | Oct 2, 2002 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Nov 4, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D211/46
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention concerns a process for preparing 4-(hydroxy)-[1,4′]bipiperidinyl-1′-carboxylic acid tert-butyl ester, comprising hydrogenating a mixture of 4-hydroxypiperidine and 1-tert-butoxycarbonyl-4-piperidone in a suitable solvent, in the presence of a suitable catalyst and at a suitable pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.