Process for the resolution of (.+-.)-.alpha.-[2-[acetyl(1-methylethyl)amino]ethyl]-.alpha.-(2-chloroph enyl)-1-piperidinebutanamide
US5276155A · kind A · utility
4Cited by
2References
3Claims
0Family size
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Key dates
| Filing date | Dec 20, 1991 |
| Grant date | Jan 4, 1994 |
| Priority date | — |
| Expiry date | Dec 20, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D295/145
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the resolution of (.+-.)-.alpha.-[2-[acetyl(1-methylethyl)amino]ethyl-.alpha.-(2-chloropheny l)-1-piperidinebutanamide having the following structure ##STR1## into its (+) and (-) enantiomers using camphorsulfonic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.