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