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