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US 4,301,291 AGranted
Intermediates for 6,7-dihydro-9-fluoro-5-methyl-1-oxo-1H,5H-benzo(ij)quinolizine-2-carboxy lic acid
AssigneeMinnesota Mining and Manufacturing Company
InventorCharles M. Leir
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Abstract
Intermediates in a process for preparing the antimicrobial compound flumequine are disclosed. The intermediates have the following formula ##STR1## wherein R is hydrogen or alkyl having 1-3 carbon atoms and acid addition salts thereof.
Claims5
A compound of the formula ##STR5## wherein R is hydrogen or alkyl having one, two or three carbon atoms and acid addition salts thereof.
A compound of the formula ##STR6## and acid addition salts thereof.
Dependencies are inferred from the claim text.