6-Chloro-2-hydroxy-4-nitro-3-(trifluoromethoxy)pyridine
5-Chloro-4-hydroxy-3-iodo-2-(trifluoromethoxy)pyridine
3-Chloro-4-(fluoromethyl)-5-methyl-2-(trifluoromethoxy)pyridine
3-Chloro-2-(fluoromethyl)-6-methyl-5-(trifluoromethoxy)pyridine
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