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