Ethyl 6-hydroxy-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-acetate
5-Hydroxy-4-nitro-2-(trifluoromethoxy)pyridine-3-methanol
5-Hydroxy-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-methanol
3-Hydroxy-2-nitro-5-(trifluoromethoxy)pyridine-4-methanol