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