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Structure-activity relationships of antibacterial 6,7- and 7,8-disubstituted 1-alkyl-1,4-dihydro-4-oxoquinoline-3-carboxylic acids

✍ Scribed by Koga, Hiroshi; Itoh, Akira; Murayama, Satoshi; Suzue, Seigo; Irikura, Tsutomu


Book ID
120263049
Publisher
American Chemical Society
Year
1980
Tongue
English
Weight
664 KB
Volume
23
Category
Article
ISSN
0022-2623

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## Abstract Alkylation of 6,7‐difluoro‐4‐hydroxyquinoline‐3‐carboxylic acid ethyl ester with substituted‐benzyl chlorides gave 1‐(substituted‐benzyl)‐6,7‐difluoro‐1,4‐dihydro‐4‐oxoquinoline‐3‐carboxylic acid ethyl esters. Their treatment with piperazine or __N__‐methylpiperazine in pyridine yielded