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