4-Bromo-3-(chloromethyl)-2-nitro-5-(trifluoromethoxy)pyridine
3-Bromo-4-(chloromethyl)-2-nitro-5-(trifluoromethoxy)pyridine
Methyl 3-bromo-4-iodo-5-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 2-bromo-3-iodo-6-(trifluoromethoxy)pyridine-5-carboxylate