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