Phenylene bis-N,N'(pyridones)
US3978072A · kind A · utility
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3Claims
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Assignee
Inventors
Key dates
| Filing date | May 31, 1974 |
| Grant date | Aug 31, 1976 |
| Priority date | — |
| Expiry date | May 31, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D211/90
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to anti-inflammatory pyridone derivatives, particularly 2,6-dimethyl-1,4-dihydro-4-oxo-3,5 pyridine-dicarboxylates and derivatives thereof which have an anti-inflammatory action, as well as compositions therewith, use of these compounds for their anti-inflammatory effect, and production thereof. These 4-oxo pyridines of the present invention, refer to in the literature as 4-(1H)-pyridones are suitably prepared by reacting a 2,6-dimethyl-4-oxo 3,5 pyrone-dicarboxylate with an aniline in an acidic medium such as acetic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.