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