Methyl 4-(bromomethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-5-carboxylate
4-(Chloromethyl)-2-(difluoromethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine
2-(Chloromethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine-3-carboxaldehyde
2-(Fluoromethyl)-6-methoxy-4-(trifluoromethoxy)pyridine-3-carboxaldehyde