7-chloro-6-fluoro-1-(2-naphthyl)-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid

7-Chloro-6-fluoro-1-naphthalen-2-yl-4-oxo-1,4-dihydro-[1,8]naphthyridine-3-carboxylic acid ethyl ester

6-Fluoro-7-pyrrolidin-1-yl-1H-[1,8]naphthyridin-4-one

7-Chloro-6-fluoro-4-oxo-1-quinolin-3-yl-1,4-dihydro-[1,8]naphthyridine-3-carboxylic acid ethyl ester

3-(Benzylamino-methyl)-1-(2,4-dimethoxy-benzyl)-6-fluoro-7-pyrrolidin-1-yl-1H-[1,8]naphthyridin-4-one