Methyl 4-(difluoromethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxylate
4-(Bromomethyl)-5-iodo-3-methoxy-2-(trifluoromethoxy)pyridine
Methyl 2-(difluoromethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine-4-acetate
4-(Bromomethyl)-3-iodo-2-methoxy-5-(trifluoromethoxy)pyridine