3-Chloro-4-cyano-2-(difluoromethyl)pyridine-5-carboxaldehyde
Ethyl 6-bromo-4-(difluoromethyl)-2-(trifluoromethyl)pyridine-3-acetate
Ethyl 6-bromo-4-(difluoromethyl)-3-(trifluoromethyl)pyridine-2-acetate
Ethyl 2-bromo-4-(difluoromethyl)-3-(trifluoromethyl)pyridine-6-acetate