Ethyl 6-(bromomethyl)-3-methoxy-4-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 2-(bromomethyl)-5-methoxy-3-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 5-methoxy-4-nitro-3-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 3-methoxy-4-nitro-2-(trifluoromethoxy)pyridine-5-carboxylate