2-Amino-5-bromo-3-(chloromethyl)-4-(difluoromethyl)pyridine
3-Amino-6-bromo-2-(difluoromethyl)-4-nitropyridine
6-Amino-4-bromo-3-(chloromethyl)-2-(difluoromethyl)pyridine
5-Amino-2-bromo-4-(difluoromethyl)-3-nitropyridine
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