3-Chloro-2-cyano-5-(trifluoromethoxy)pyridine-4-carboxylic acid
2-Chloro-6-cyano-4-(trifluoromethoxy)pyridine-3-carboxylic acid
Methyl 3-chloro-4-cyano-5-(trifluoromethoxy)pyridine-2-carboxylate
6-Chloro-4-cyano-2-(trifluoromethoxy)pyridine-3-carboxylic acid