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