5-Chloro-4-methyl-2-(trifluoromethoxy)pyridine-3-carboxylic acid
6-Cyano-3-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxylic acid
3-Chloro-4-(chloromethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine
3-Chloro-4-methyl-5-(trifluoromethoxy)pyridine-2-carboxylic acid