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