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