5-Amino-2-(difluoromethyl)-4-iodo-3-nitropyridine
2-Amino-3-(chloromethyl)-6-(difluoromethyl)-5-nitropyridine
2-Amino-3-(chloromethyl)-5-(difluoromethyl)-4-nitropyridine
2-Amino-5-(difluoromethyl)-6-nitropyridine-3-acetonitrile
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