4H-1-benzopyran-4-one derivative or its salt, process for producing the same and pharmaceutical composition comprising the same as active ingredient
US4954518A · kind A · utility
43Cited by
8References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1988 |
| Grant date | Sep 4, 1990 |
| Priority date | — |
| Expiry date | Oct 7, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D417/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a 4H-1-benzopyran-4-one derivative represented by the formula: ##STR1## or a salt thereof, a process for producing the same and a pharmaceutical composition comprising the same as active ingredient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.