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