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