3-Cyano-4-methyl-2-(trifluoromethoxy)pyridine-5-carboxylic acid
Methyl 5-chloro-2-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxylate
4-Cyano-2-iodo-5-methoxy-3-(trifluoromethoxy)pyridine
3-Cyano-2-methyl-5-(trifluoromethoxy)pyridine-6-carboxylic acid