2-(Difluoromethyl)-3-nitropyridine-5-carboxylic acid
4-(Difluoromethyl)-3-(trifluoromethyl)pyridine-5-acetonitrile
5-(Difluoromethyl)-2-nitropyridine-4-carboxaldehyde
2,3-Difluoro-5-(difluoromethyl)pyridine-4-carboxylic acid
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