2-Cyano-4-(difluoromethyl)-3-iodo-5-(trifluoromethoxy)pyridine
2-Cyano-6-nitro-3-(trifluoromethoxy)pyridine-4-carboxylic acid
4-Chloro-3-iodo-2-(trifluoromethoxy)pyridine-6-sulfonamide
6-Cyano-3-nitro-4-(trifluoromethoxy)pyridine-2-carboxylic acid
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