4-Amino-3-bromo-2-(difluoromethyl)pyridine-5-sulfonamide
4-Amino-5-chloro-2-(difluoromethyl)-3-methylpyridine
4-Amino-2-bromo-3-(difluoromethyl)pyridine-5-sulfonamide
6-Amino-4-chloro-3-(difluoromethyl)-2-fluoropyridine
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