4-Hydroxy-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-6-carboxylic acid
3-(Fluoromethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine-4-acetic acid
5-Hydroxy-2-methyl-4-(trifluoromethoxy)pyridine-3-sulfonamide
2-Hydroxy-4-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-3-carboxylic acid