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