4-Hydroxy-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-carboxylic acid
6-Iodo-3-methyl-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
4-Hydroxy-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-3-carboxylic acid
2-Hydroxy-6-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-3-carboxylic acid