6-(trifluoromethyl)-4,5-dihydropyridazin-3(2H)-one
methyl 4-(2-benzoylhydrazono)-5,5,5-trifluoropentanoate
2-(4-fluorophenyl)-6-(trifluoromethyl)-4,5-dihydropyridazin-3(2H)-one
2-phenyl-6-(trifluoromethyl)-4,5-dihydropyridazin-3(2H)-one
methyl 5,5,5-trifluoro-4-(2-phenylhydrazono)-pentanoate