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