6-Amino-3-chloro-4-(difluoromethyl)pyridine-2-sulfonamide
2-Amino-3-bromo-5-(difluoromethyl)-4-methoxypyridine
2-Amino-4-chloro-3-(difluoromethyl)pyridine-5-sulfonamide
3-Amino-6-bromo-2-(difluoromethyl)-4-iodopyridine
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