4-(Difluoromethyl)-6-methyl-2-nitropyridine-3-acetonitrile
3-(Bromomethyl)-2-(difluoromethyl)-6-methyl-4-nitropyridine
4-(Difluoromethyl)-2-methyl-3-nitropyridine-6-acetonitrile
3-(Bromomethyl)-2-(difluoromethyl)-5-methyl-4-nitropyridine
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