Flavone compounds
US5889003A · kind A · utility
6Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1997 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Sep 26, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D311/30
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A compound of general formula (I): ##STR1## in which: R.sub.1 represents alkyl, PA1 X represents oxygen, --CHR'-- or --CR'.dbd., PA1 R' is chosen from hydrogen and alkyl, PA1 R.sub.2 represents optionally substituted alkyl as is defined in the description, cycloalkyl or polycycloalkyl as are defined in the description, PA1 R.sub.3 represents hydrogen or hydroxyl, PA1 Alk represents alkylene, and PA1 Y is as defined in the description, and medicinal products containing the same are useful as PDE IV inhibitors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.