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