3-Bromo-4-nitropicolinonitrile
3-(Difluoromethyl)-2-nitro-6-(trifluoromethyl)pyridine-5-sulfonyl chloride
3,5-Dichloro-2-hydroxy-4-(trifluoromethoxy)pyridine
4-Chloro-3-cyano-2-(difluoromethyl)pyridine-6-sulfonamide
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