2-Amino-3-cyano-4-(difluoromethyl)-5-fluoropyridine
4-Amino-3-chloro-6-(difluoromethyl)pyridine-2-sulfonamide
4-Amino-3-chloro-2-(difluoromethyl)pyridine-6-sulfonamide
4-Amino-3-cyano-6-(difluoromethyl)-2-methoxypyridine
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