Methyl 5-(fluoromethyl)-3-methoxy-4-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 5-(chloromethyl)-4-methoxy-2-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 3-(fluoromethyl)-2-methoxy-4-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 3-(chloromethyl)-2-methoxy-6-(trifluoromethoxy)pyridine-5-carboxylate