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