1-Ethyl-1,4,5,6-tetrahydro-6-(2-naphthyl)-4-oxo-nicotinic acid and lower alkyl esters thereof
US4314063A · kind A · utility
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3Claims
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Key dates
| Filing date | Feb 19, 1981 |
| Grant date | Feb 2, 1982 |
| Priority date | — |
| Expiry date | Feb 19, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D213/80
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
1-Ethyl-1,4-dihydro-6-(2-naphthyl)-4-oxonicotinic acid and C.sub.1-6 -alkyl esters thereof as well as their alkali metal, alkaline earth metal or ammonium salts are described. The foregoing compounds are useful as central nervous system stimulants. Also described are 1-ethyl-6-(2-naphthyl)-4-oxo-1,4,5,6-tetrahydronicotinic acid and C.sub.1-6 -alkyl esters thereof, which are useful as intermediates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.