2-(Difluoromethyl)-4-nitropyridine-6-carboxylic acid
3,4-Dibromo-2-(difluoromethyl)-6-(trifluoromethyl)pyridine
5-(Difluoromethyl)-2-nitropyridine-3-acetic acid
4-(Difluoromethyl)-3-nitropyridine-2-acetic acid
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