4-Bromo-3-(difluoromethyl)-6-nitropyridine-2-sulfonamide
2-Bromo-3-(difluoromethyl)-4-methyl-5-(trifluoromethyl)pyridine
3-Chloro-5-cyano-2-(difluoromethyl)-6-iodopyridine
4-Bromo-2-(chloromethyl)-3-(difluoromethyl)-5-methylpyridine
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