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