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