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