5-(ethoxymethyl)-7-fluoro-N-(2-fluorophenyl)-3-oxo-1,2-dihydropyrido[1,2-a]benzimidazole-4-carboxamide 5-(ethoxymethyl)-7-fluoro-N-(2-fluorophenyl)-3-keto-1,2-dihydropyrido[1,2-a]benzimidazole-4-carboxamide