6-(Difluoromethyl)-2-methyl-3-nitropyridine-4-acetic acid
4-(Difluoromethyl)-2-methyl-3-nitropyridine-5-carboxylic acid
3-(Difluoromethyl)-5-methyl-6-nitropyridine-2-carboxylic acid
2-(Difluoromethyl)-5-methyl-6-nitropyridine-3-acetic acid
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