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