4-Keto-phenoxyacetic acids
US4197309A · kind A · utility
4Cited by
3References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 1978 |
| Grant date | Apr 8, 1980 |
| Priority date | — |
| Expiry date | May 30, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/46
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention provides certain 4-keto-phenoxyacetic acids and their oximes of the formula: ##STR1## in which A is selected from oxygen and sulphur, PA1 Z is selected from oxygen and the group NOH, and PA1 X.sub.1 and X.sub.2 are radicals independently selected from hydrogen, halogen and methyl, with the proviso that the benzene nucleus is never substituted by two halogen atoms in ortho-position with respect of one another, and pharmaceutically acceptable alkaline and amine addition salts thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.