Ethyl 5-(chloromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 3-(chloromethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine-2-carboxylate
5-Hydroxy-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-methanol
3-Hydroxy-5-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-2-methanol