6-(Fluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine-4-methanol
5-(Fluoromethyl)-4-hydroxy-3-nitro-2-(trifluoromethoxy)pyridine
3-(Fluoromethyl)-4-hydroxy-2-nitro-5-(trifluoromethoxy)pyridine
2-(Fluoromethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-6-methanol