Synonyms:
ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2,3-B] PYRIDINE-3-CARBOXYLATE;
Ethyl 1-(2,4-difluorophenyl)-7-Cl-6-F-4-O-hydropyridino[2,3-b]pyridine-3-carboxylate;
ethyl 7-chloro-1-(2,4-difluorophenyl)-6-fluoro-4-oxo-1,8-naphthyridine-3-carboxylate;
Trovafloxacin intermediate