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