6-Chloro-4-hydroxy-3-iodo-2-(trifluoromethoxy)pyridine
3-(Chloromethyl)-6-cyano-4-hydroxy-2-(trifluoromethoxy)pyridine
3-Chloro-6-(chloromethyl)-2-methyl-4-(trifluoromethoxy)pyridine
5-(Chloromethyl)-2-cyano-3-hydroxy-4-(trifluoromethoxy)pyridine
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