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