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