Ethyl 4-(difluoromethyl)-2-methyl-3-nitropyridine-6-acetate
Methyl 2-(difluoromethyl)-6-methyl-5-nitropyridine-3-acetate
6-(Difluoromethyl)-4-methyl-2-nitropyridine-3-sulfonamide
6-(Difluoromethyl)-4-methyl-3-nitropyridine-2-sulfonamide
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