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