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