Ethyl 3-amino-4-(difluoromethyl)-6-nitropyridine-2-carboxylate
5-Amino-3-(difluoromethyl)-4-nitropyridine-2-carboxaldehyde
Ethyl 3-amino-6-(difluoromethyl)-4-nitropyridine-2-carboxylate
3-Amino-5-(difluoromethyl)-2-nitropyridine-4-carboxaldehyde
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