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