Ethyl 4-(chloromethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine-3-acetate
6-(Chloromethyl)-4-hydroxy-2-nitro-3-(trifluoromethoxy)pyridine
2-(Chloromethyl)-4-hydroxy-5-nitro-3-(trifluoromethoxy)pyridine
2-(Chloromethyl)-3-hydroxy-6-nitro-5-(trifluoromethoxy)pyridine