Process for 6,7-dihydro-5,8-dimethyl-9-fluoro-1-oxo-1H,5H-benzo[i,j]quinolizine-2-ca rboxylic acid
US4898945A · kind A · utility
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7References
7Claims
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Key dates
| Filing date | Nov 4, 1988 |
| Grant date | Feb 6, 1990 |
| Priority date | — |
| Expiry date | Nov 4, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D455/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing 6,7-dihydro-9-fluoro-5,8-dimethyl-1-oxo-1H,5H-benzo[i,j]quinolizine-2-carb oxylic acid, an antimicrobial, using 6-fluoro-2-methylquinoline as a starting material. A synthetic intermediate is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.