2-(Chloromethyl)-5-cyano-6-nitro-3-(trifluoromethoxy)pyridine
4-Cyano-3-fluoro-2-iodo-6-(trifluoromethoxy)pyridine
2-(Chloromethyl)-5-cyano-4-nitro-3-(trifluoromethoxy)pyridine
4-Cyano-2-fluoro-6-iodo-3-(trifluoromethoxy)pyridine
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