Ethyl 4-(difluoromethyl)-2-methoxy-3-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 2-(chloromethyl)-4-methoxy-6-(trifluoromethoxy)pyridine-3-acetate
Methyl 4-(bromomethyl)-5-methoxy-2-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 2-(chloromethyl)-4-methoxy-3-(trifluoromethoxy)pyridine-6-acetate