Ethyl 2,4-dichloro-5-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 3,5-dichloro-4-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 2,6-dichloro-4-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 3,6-dichloro-2-(trifluoromethoxy)pyridine-5-carboxylate