Ethyl 2-(bromomethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine-5-carboxylate
3-(Chloromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-6-carboxaldehyde
Methyl 4-(bromomethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxylate
4-(Fluoromethyl)-2-iodo-5-methyl-3-(trifluoromethoxy)pyridine