Process for producing 1-substituted...

Details Process for producing 1-substituted... Process for producing 1-substituted...

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.

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