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