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