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