C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/273, 260/266
C07D 471/04 (2006.01) C07D 213/74 (2006.01) C07D 213/78 (2006.01) C07D 213/80 (2006.01) C07D 401/04 (2006.01) C07D 521/00 (2006.01) C07F 9/6561 (2006.01)
Patent
CA 1340706
This invention relates to a process for industrially producing a 11-substituted aryl-1,4-dihydro-oxonaphthyridine derivative and a salt thereof Image wherein R1 represents a hydrogen atom or a carboxyl-protecting group; R2a represents a 3-amino-1-pyrrolidinyl group in which the amino group may be protected, or a 1-piperazinyl group in which the imino group may be protected; and X represents a hydrogen atom or a fluorine atom, which are useful as an antibacterial agent, and also to intermediates therefor and processes for producing the intermediates.
500107
Isao Kitayama
Konishi Yoshinori
Miyajima Mikako
Nagaki Hideyoshi
Nagumo Katsuyuki
Marks & Clerk
Toyama Chemical Co. Ltd.
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