3-Cyano-5-(difluoromethyl)-2-iodo-4-(trifluoromethoxy)pyridine
3-Cyano-4-(difluoromethyl)-2-nitro-5-(trifluoromethoxy)pyridine
3-Cyano-6-iodo-2-(trifluoromethoxy)pyridine-5-acetonitrile
5-Cyano-2-nitro-3-(trifluoromethoxy)pyridine-4-acetonitrile
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