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