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