4-Fluoro-5-(fluoromethyl)-3-nitro-2-(trifluoromethoxy)pyridine
5-Cyano-4-iodo-2-methyl-3-(trifluoromethoxy)pyridine
4-Fluoro-3-(fluoromethyl)-2-nitro-5-(trifluoromethoxy)pyridine
3-Cyano-2-iodo-6-methyl-5-(trifluoromethoxy)pyridine
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