6-Bromo-2-iodo-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
3-Bromo-5-(fluoromethyl)-2-methoxy-6-(trifluoromethoxy)pyridine
2-Bromo-6-iodo-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
3-Bromo-4-(fluoromethyl)-6-methoxy-2-(trifluoromethoxy)pyridine