5-Bromo-3-(difluoromethyl)pyridine-2-carboxylic acid
3-(Chloromethyl)-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-4-carboxylic acid
5-Bromo-4-(difluoromethyl)pyridine-2-carboxylic acid
3-Bromo-2-(difluoromethyl)pyridine-6-carboxylic acid
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