2-Bromo-3-(chloromethyl)-5-cyano-4-(trifluoromethoxy)pyridine
3-Bromo-5-cyano-6-(fluoromethyl)-2-(trifluoromethoxy)pyridine
2-Bromo-3-chloro-6-iodo-4-(trifluoromethoxy)pyridine
2-Bromo-6-iodo-5-(trifluoromethoxy)pyridine-3-sulfonyl chloride
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