Methyl 4-bromo-2-nitro-5-(trifluoromethoxy)pyridine-3-carboxylate
3-Bromo-5-(fluoromethyl)-2-iodo-4-(trifluoromethoxy)pyridine
Methyl 3-chloro-2-cyano-4-(trifluoromethoxy)pyridine-5-carboxylate
5-Bromo-4-(fluoromethyl)-3-iodo-2-(trifluoromethoxy)pyridine