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