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