Ethyl 5-bromo-2-(difluoromethyl)-3-nitropyridine-6-acetate
3-Amino-5-(difluoromethyl)-2-nitropyridine-4-methanol
5-Amino-4-(difluoromethyl)-3-nitropyridine-2-methanol
2-Amino-6-(difluoromethyl)-3-nitropyridine-4-methanol
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