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