2-(Chloromethyl)-3-(difluoromethyl)-6-methyl-4-nitropyridine
4-(Difluoromethyl)-3-methoxy-6-nitropyridine-2-carboxylic acid
2-(Chloromethyl)-3-(difluoromethyl)-5-methyl-4-nitropyridine
4-(Difluoromethyl)-3-methoxy-5-nitropyridine-2-carboxylic acid
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