4-(Difluoromethyl)-2-methoxy-3-nitropyridine
2-(Difluoromethyl)-5-(trifluoromethyl)pyridine-4-carboxylic acid
3-(Difluoromethyl)-5-methoxy-2-nitropyridine
2-(Difluoromethyl)-3-(trifluoromethyl)pyridine-5-carboxylic acid
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