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