Ethyl 3-bromo-6-nitro-4-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 3-bromo-2-nitro-5-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 4-bromo-2-nitro-5-(trifluoromethoxy)pyridine-3-carboxylate
3-Chloro-2-cyano-5-(trifluoromethoxy)pyridine-6-sulfonamide