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