5-Hydroxy-2-methyl-3-(trifluoromethoxy)pyridine-6-sulfonamide
3-(Fluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-6-carboxylic acid
Ethyl 4-(fluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine-5-acetate
3-(Fluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-6-carboxylic acid