3-(Chloromethyl)-2-cyano-5-(trifluoromethoxy)pyridine-6-carboxaldehyde
3-(Chloromethyl)-2-cyano-4-(trifluoromethoxy)pyridine-5-carboxaldehyde
3-Chloro-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-6-carboxylic acid
6-(Chloromethyl)-2-cyano-4-(trifluoromethoxy)pyridine-3-carboxaldehyde