4-Bromo-5-(fluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine
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