Psychostimulant compounds
US4163799A · kind A · utility
1Cited by
8References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 8, 1977 |
| Grant date | Aug 7, 1979 |
| Priority date | — |
| Expiry date | Apr 8, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D309/30
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Tetrahydro-.alpha.-pyrones and their intermediate salts of 5-hydroxy-2,3-diphenyl hexanoic acid have psychostimulant activity. A process for the preparation of these compounds comprises preparing the alkyl ester of a 5-oxo alkanoic acid from a 4-oxo alkane carbonitrile, obtained in a first stage by the action of benzyl cyanide on the corresponding alkenone, and then saponifying the obtained ester, followed by hydrogenation to form the 5-hydroxy-2,3-diphenyl hexanoic acid salt, followed if desired by cyclization to form the tetrahydro-.alpha.-pyrone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.