3-Chloro-4-(difluoromethyl)-2-nitro-6-(trifluoromethyl)pyridine
2,5-Dimethoxy-3-nitro-6-(trifluoromethoxy)pyridine
2-Hydroxy-5-methyl-6-(trifluoromethoxy)pyridine-3-sulfonyl chloride
6-Bromo-2-mercaptonicotinonitrile
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