Ethyl 3-(chloromethyl)-5-(difluoromethyl)-2-(trifluoromethyl)pyridine-6-acetate
Ethyl 3-(chloromethyl)-5-(difluoromethyl)-2-(trifluoromethyl)pyridine-4-acetate
Ethyl 5-(chloromethyl)-4-(difluoromethyl)-2-(trifluoromethyl)pyridine-3-acetate
Ethyl 3-(chloromethyl)-4-(difluoromethyl)-6-(trifluoromethyl)pyridine-2-acetate