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