Ethyl 3-bromo-4-(fluoromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 2-bromo-6-(fluoromethyl)-3-(trifluoromethoxy)pyridine-5-carboxylate
4-Chloro-3-iodo-6-(trifluoromethoxy)pyridine-2-sulfonyl chloride
3-Chloro-4-iodo-6-(trifluoromethoxy)pyridine-2-sulfonyl chloride