FREMGANGSMAADE TIL FREMSTILLING AF 1-SUBSTITUEREDE ARYL-1,4-DIHYDRO-4-OXANAPHTHYRIDINDERIVATER, MELLEMPRODUKTER TIL BRUG VED FREMGANGSMAADEN OG FREMGANGSMAADE TIL FREMSTILLING AF DISSE

摘要

This invention relates to a process for industrially producing a 1-substituted aryl-1,4-dihydro-4-oxonaphthyridine derivative and a salt thereof which are useful as an antibacterial agent, and also to intermediates therefor and processes for producing the intermediates.