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