PROCESSES FOR PRODUCING 7-ISOINDOLINE-QUINOLONECARBOXYLIC ACID DERIVATIVE AND ITS INTERMEDIATE, AS WELL AS SALT OF 7-ISOINDOLINE-QUINOLONECARBOXYLIC ACID DERIVATIVE, ITS HYDRATE AND COMPOSITION COMPRISING THE SAME AS ACTIVE INGREDIENT

摘要

Processes for producing a 7-isoindoline-quinolonecarboxylic acid derivative represented by the general formula [1] which is useful as an antibacterial agent, and an intermediate thereof:comprising reacting, in the presence of metallic palladium, an isoindoline-5-boronic acid, or of a 5-halogenoisoindoline, in the presence of a palladium catalyst, with a dialkoxyborane or an alkoxydiborane.