6-(Difluoromethyl)-2-fluoropyridine-3-carboxylic acid
2-(Difluoromethyl)-6-fluoropyridine-3-carboxylic acid
2-(Difluoromethyl)-5-fluoropyridine-4-carboxylic acid
2-(Difluoromethyl)-4-fluoropyridine-6-carboxylic acid
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