2-Bromo-4-iodo-6-(trifluoromethoxy)pyridine-3-sulfonyl chloride
3-Bromo-2-cyano-6-(fluoromethyl)-4-(trifluoromethoxy)pyridine
2-Bromo-3-iodo-6-(trifluoromethoxy)pyridine-4-sulfonyl chloride
3-Bromo-2-cyano-4-(fluoromethyl)-6-(trifluoromethoxy)pyridine