5-Chloro-3-cyano-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
5-Bromo-3-(fluoromethyl)-2-nitro-4-(trifluoromethoxy)pyridine
3-Bromo-6-(difluoromethyl)-2-nitro-5-(trifluoromethoxy)pyridine
5-Bromo-2-(difluoromethyl)-3-nitro-6-(trifluoromethoxy)pyridine