Method of selectively introducing amino substituent

Details Method of selectively introducing amino substituent Method of selectively introducing amino substituent

2004-06-18

2009-12-01

Seaman, D. Margaret (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C546S159000

Reexamination Certificate

active

07626029

ABSTRACT:
Provided are a technique for position-selectively introducing an amino group into a difluorobenzoic acid, a novel process for producing a quinolonecarboxylic acid derivative serving as an antibacterial agent, and intermediates in the production. The process comprises treating a compound represented by formula (6):with a base in a water-containing solvent. The intermediates are represented by formula (6):

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