4-Amino-2-bromo-3-(difluoromethyl)-5-nitropyridine
5-Amino-2-(aminomethyl)-3-bromo-4-(difluoromethyl)pyridine
6-Amino-4-(difluoromethyl)-2,3-diiodopyridine
3-Amino-5-bromo-2-(difluoromethyl)-4-nitropyridine
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