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