Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1987-12-21
1989-05-23
Reamer, James H.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
548485, 562456, 562458, 564194, C07C 51363
Patent
active
048332704
ABSTRACT:
This disclosure describes a novel process for preparing 2-chloro-4,5-difluorobenzoic acid which is useful in the preparation of 7-(substituted)piperazinyl-1-substituted-6-fluoro-1,4-dihydro-4-oxo-3-quin oli necarboxylic acid antibacterial agents.
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patent: 4322533 (1982-03-01), Lesher et al.
patent: 4439620 (1984-03-01), Klauke et al.
patent: 4521616 (1985-06-01), Fifalt et al.
Fiesor et al., "Reagents for Organic Synthesis", p. 166, (1967).
Bitha Panayota
Lin Yang-I
American Cyanamid Company
Conroy, Jr. Edward A.
Reamer James H.
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