3-Chloro-5-nitro-4-(trifluoromethoxy)pyridine-2-carboxylic acid
6-Cyano-2-iodo-4-methoxy-3-(trifluoromethoxy)pyridine
6-(Chloromethyl)-4-cyano-3-iodo-2-(trifluoromethoxy)pyridine
6-Cyano-3-iodo-4-methoxy-2-(trifluoromethoxy)pyridine
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