3-Bromo-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-acetonitrile
4-Chloro-5-cyano-2-hydroxy-3-(trifluoromethoxy)pyridine
4-Chloro-2-iodo-3-nitro-6-(trifluoromethoxy)pyridine
4-Chloro-6-cyano-2-hydroxy-3-(trifluoromethoxy)pyridine
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