Ethyl 1-(2,4-difluorophenyl)-7-chloro-6-fluoro-4-oxopyridino[2,3-b]pyridine-3-carboxylate

2-Amino-3-chloro-4-fluorobenzonitrile

2',6'-Difluoroacetophenone

3-(Trifluoromethoxy)benzoic acid

2-Chloro-3-amine-5-(trifluoromethyl)pyridine

Methyl 2-(trifluoromethyl)benzoate