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