4-Amino-2-(aminomethyl)-3-(difluoromethyl)-6-iodopyridine
2-Amino-3-(difluoromethyl)-6-nitropyridine-5-acetonitrile
4-Amino-3-(bromomethyl)-2-(difluoromethyl)-6-nitropyridine
2-Amino-3-(difluoromethyl)-5-nitropyridine-4-acetonitrile
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