2-Chloro-4-nitro-6-(trifluoromethoxy)pyridine-3-acetic acid
3-Cyano-2-(difluoromethyl)-5-nitro-6-(trifluoromethoxy)pyridine
2-Cyano-4-(difluoromethyl)-6-nitro-3-(trifluoromethoxy)pyridine
3-Bromo-6-nitro-4-(trifluoromethoxy)pyridine-2-acetonitrile
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