2,3-Dihydro-3-(2-pyridinyl)-4H-1-benzopyran-4-one N-oxides
US4013673A · kind A · utility
1Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1976 |
| Grant date | Mar 22, 1977 |
| Priority date | — |
| Expiry date | Apr 13, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D405/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There is disclosed 2,3-dihydro-3-(2-pyridinyl)-4H-1-benzopyran-4-one N-oxides of the formula: ##STR1## in which R.sub.1 is hydrogen, halogen, lower alkyl, hydroxy, lower alkoxy or amino; R.sub.2 is hydrogen or --CH.sub.2 OH. These compounds are indicated in the treatment of gastric ulcers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.