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