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