Intermediates in the preparation of 4,5-difluoroanthranillic acid
US5436368A · kind A · utility
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Key dates
| Filing date | Nov 14, 1994 |
| Grant date | Jul 25, 1995 |
| Priority date | — |
| Expiry date | Nov 14, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/89
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of the formula ##STR1## which are intermediates in the preparation of 4,5-difluoroanthranilic acid, an intermediate itself in the synthesis of quinolone antibacterials, and methods of preparing these intermediates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.