4-Bromo-2-cyano-3-(difluoromethyl)pyridine-6-sulfonamide
6-Bromo-2-chloro-4-(difluoromethyl)pyridine-3-carboxylic acid
3-Bromo-5-cyano-2-(difluoromethyl)pyridine-6-sulfonamide
3-Bromo-5-(difluoromethyl)-2-fluoro-6-iodopyridine
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