Methyl 3-(bromomethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine-6-acetate
Methyl 3-(bromomethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-5-acetate
5-(Difluoromethyl)-2-iodo-4-methoxy-3-(trifluoromethoxy)pyridine
4-(Difluoromethyl)-5-iodo-2-methoxy-3-(trifluoromethoxy)pyridine