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