6-Amino-3-(difluoromethyl)-2-iodopyridine-4-acetonitrile
4-Amino-2-cyano-5-(difluoromethyl)-3-nitropyridine
4-Amino-5-(difluoromethyl)-2-iodopyridine-3-carboxylic acid
4-Amino-3-(difluoromethyl)-5-iodopyridine-2-carboxylic acid
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