4-Hydroxy-3-sulfinyl-quinolin-2(1H)-ones
US4124587A · kind A · utility
8Cited by
1References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 1, 1976 |
| Grant date | Nov 7, 1978 |
| Priority date | — |
| Expiry date | Mar 1, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D215/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Anti-allergic 4-hydroxy-3-sulfinyl-quinolin-2(1H)-ones are prepared by reacting an isatoic anhydride with the carbanion resulting from the treatment of sulfinyl acetic acid alkyl esters with a proton abstracting agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.