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