p. 1311 - 1320
(2007/10/02)piperazine
7-chloro-1-(2,4-difluorophenyl)-6-fluoro-1,4-dihydro-4-oxocinnoline-3-carboxylic acid
2,4-difluorophenylamine
ethyl 2,4-dichloro-5-fluoro-α-(2,4-difluorophenylhydrazono)benzoylacetate
ethyl 7-chloro-1-(2,4-difluorophenyl)-6-fluoro-1,4-dihydro-4-oxocinnoline-3-carboxylate