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