6-Bromo-3-(chloromethyl)-2-cyano-4-(trifluoromethoxy)pyridine
6-Bromo-3-(fluoromethyl)-2-iodo-4-(trifluoromethoxy)pyridine
5-Bromo-4-cyano-3-(trifluoromethoxy)pyridine-2-sulfonamide
2-Bromo-5-(fluoromethyl)-3-iodo-6-(trifluoromethoxy)pyridine
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