2-Amino-3-(difluoromethyl)-5-nitropyridine-6-sulfonamide
2-Amino-3-(difluoromethyl)-4-nitropyridine-5-sulfonamide
Methyl 4-amino-2-(difluoromethyl)-3-nitropyridine-6-acetate
Methyl 3-amino-5-(difluoromethyl)-6-nitropyridine-2-acetate
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