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