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