Method of treating inflammation with 2-(2,3-dihydro-2-isopropyl-4-oxo-4H-1-benzopyran-6-yl)propionic acid
US4057641A · kind A · utility
3Cited by
8References
1Claims
0Family size
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Key dates
| Filing date | Mar 12, 1975 |
| Grant date | Nov 8, 1977 |
| Priority date | — |
| Expiry date | Mar 12, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D311/22
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There are described compounds of formula I, ##STR1## in which Ra is hydrogen, alkyl, alkenyl or phenyl, PA1 R.sub.3, r.sub.5, r.sub.7 and R.sub.8, which may be the same or different, are each hydrogen, alkyl, alkoxy, halogen, hydroxy, alkenyl or phenyl, PA1 Rx is hydrogen or alkyl, PA1 Ry and Rz are both hydrogen, or together represent a carbonyl oxygen atom, PA1 Rb and Rc are both hydrogen or together represent a carbon-carbon bond, PA1 And pharmaceutically acceptable derivatives thereof. There are also described processes for making the compounds and pharmaceutical, e.g. anti-inflammatory compositions, containing the compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.