4-Chloro-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
4-Chloro-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-carboxaldehyde
2-Chloro-6-cyano-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
4-Chloro-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxaldehyde